diff options
| author | blogic <blogic@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2012-10-05 10:12:53 +0000 |
|---|---|---|
| committer | blogic <blogic@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2012-10-05 10:12:53 +0000 |
| commit | 5c105d9f3fd086aff195d3849dcf847d6b0bd927 (patch) | |
| tree | 1229a11f725bfa58aa7c57a76898553bb5f6654a /package/lua/patches-host/010-lua-5.1.3-lnum-full-260308.patch | |
| download | openwrt-5c105d9f3fd086aff195d3849dcf847d6b0bd927.tar.gz openwrt-5c105d9f3fd086aff195d3849dcf847d6b0bd927.zip | |
branch Attitude Adjustment
git-svn-id: svn://svn.openwrt.org/openwrt/branches/attitude_adjustment@33625 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'package/lua/patches-host/010-lua-5.1.3-lnum-full-260308.patch')
| -rw-r--r-- | package/lua/patches-host/010-lua-5.1.3-lnum-full-260308.patch | 3806 |
1 files changed, 3806 insertions, 0 deletions
diff --git a/package/lua/patches-host/010-lua-5.1.3-lnum-full-260308.patch b/package/lua/patches-host/010-lua-5.1.3-lnum-full-260308.patch new file mode 100644 index 000000000..f8d8fc7f1 --- /dev/null +++ b/package/lua/patches-host/010-lua-5.1.3-lnum-full-260308.patch @@ -0,0 +1,3806 @@ +Index: lua-5.1.4/src/Makefile +=================================================================== +--- lua-5.1.4.orig/src/Makefile 2008-08-24 16:46:37.000000000 +0200 ++++ lua-5.1.4/src/Makefile 2008-08-24 16:48:20.000000000 +0200 +@@ -25,7 +25,7 @@ + LUA_A= liblua.a + CORE_O= lapi.o lcode.o ldebug.o ldo.o ldump.o lfunc.o lgc.o llex.o lmem.o \ + lobject.o lopcodes.o lparser.o lstate.o lstring.o ltable.o ltm.o \ +- lundump.o lvm.o lzio.o ++ lundump.o lvm.o lzio.o lnum.o + LIB_O= lauxlib.o lbaselib.o ldblib.o liolib.o lmathlib.o loslib.o ltablib.o \ + lstrlib.o loadlib.o linit.o + +@@ -148,6 +148,7 @@ + lmathlib.o: lmathlib.c lua.h luaconf.h lauxlib.h lualib.h + lmem.o: lmem.c lua.h luaconf.h ldebug.h lstate.h lobject.h llimits.h \ + ltm.h lzio.h lmem.h ldo.h ++lnum.o: lnum.c lua.h llex.h lnum.h + loadlib.o: loadlib.c lua.h luaconf.h lauxlib.h lualib.h + lobject.o: lobject.c lua.h luaconf.h ldo.h lobject.h llimits.h lstate.h \ + ltm.h lzio.h lmem.h lstring.h lgc.h lvm.h +@@ -179,4 +180,18 @@ + print.o: print.c ldebug.h lstate.h lua.h luaconf.h lobject.h llimits.h \ + ltm.h lzio.h lmem.h lopcodes.h lundump.h + ++luaconf.h: lnum_config.h ++lapi.c: lnum.h ++lauxlib.c: llimits.h ++lbaselib.c: llimits.h lobject.h lapi.h ++lcode.c: lnum.h ++liolib.c: lnum.h llex.h ++llex.c: lnum.h ++lnum.h: lobject.h ++lobject.c: llex.h lnum.h ++ltable.c: lnum.h ++lua.c: llimits.h ++lvm.c: llex.h lnum.h ++print.c: lnum.h ++ + # (end of Makefile) +Index: lua-5.1.4/src/lapi.c +=================================================================== +--- lua-5.1.4.orig/src/lapi.c 2008-08-24 16:46:37.000000000 +0200 ++++ lua-5.1.4/src/lapi.c 2008-08-24 16:48:20.000000000 +0200 +@@ -28,7 +28,7 @@ + #include "ltm.h" + #include "lundump.h" + #include "lvm.h" +- ++#include "lnum.h" + + + const char lua_ident[] = +@@ -241,12 +241,13 @@ + + LUA_API int lua_type (lua_State *L, int idx) { + StkId o = index2adr(L, idx); +- return (o == luaO_nilobject) ? LUA_TNONE : ttype(o); ++ return (o == luaO_nilobject) ? LUA_TNONE : ttype_ext(o); + } + + + LUA_API const char *lua_typename (lua_State *L, int t) { + UNUSED(L); ++ lua_assert( t!= LUA_TINT ); + return (t == LUA_TNONE) ? "no value" : luaT_typenames[t]; + } + +@@ -264,6 +265,14 @@ + } + + ++LUA_API int lua_isinteger (lua_State *L, int idx) { ++ TValue tmp; ++ lua_Integer dum; ++ const TValue *o = index2adr(L, idx); ++ return tonumber(o,&tmp) && (ttisint(o) || tt_integer_valued(o,&dum)); ++} ++ ++ + LUA_API int lua_isstring (lua_State *L, int idx) { + int t = lua_type(L, idx); + return (t == LUA_TSTRING || t == LUA_TNUMBER); +@@ -309,31 +318,66 @@ + } + + +- + LUA_API lua_Number lua_tonumber (lua_State *L, int idx) { + TValue n; + const TValue *o = index2adr(L, idx); +- if (tonumber(o, &n)) ++ if (tonumber(o, &n)) { ++#ifdef LNUM_COMPLEX ++ if (nvalue_img(o) != 0) ++ luaG_runerror(L, "expecting a real number"); ++#endif + return nvalue(o); +- else +- return 0; ++ } ++ return 0; + } + + + LUA_API lua_Integer lua_tointeger (lua_State *L, int idx) { + TValue n; ++ /* Lua 5.1 documented behaviour is to return nonzero for non-integer: ++ * "If the number is not an integer, it is truncated in some non-specified way." ++ * I would suggest to change this, to return 0 for anything that would ++ * not fit in 'lua_Integer'. ++ */ ++#ifdef LUA_COMPAT_TOINTEGER ++ /* Lua 5.1 compatible */ + const TValue *o = index2adr(L, idx); + if (tonumber(o, &n)) { +- lua_Integer res; +- lua_Number num = nvalue(o); +- lua_number2integer(res, num); +- return res; ++ lua_Integer i; ++ lua_Number d; ++ if (ttisint(o)) return ivalue(o); ++ d= nvalue_fast(o); ++# ifdef LNUM_COMPLEX ++ if (nvalue_img_fast(o) != 0) ++ luaG_runerror(L, "expecting a real number"); ++# endif ++ lua_number2integer(i, d); ++ return i; + } +- else +- return 0; ++#else ++ /* New suggestion */ ++ const TValue *o = index2adr(L, idx); ++ if (tonumber(o, &n)) { ++ lua_Integer i; ++ if (ttisint(o)) return ivalue(o); ++ if (tt_integer_valued(o,&i)) return i; ++ } ++#endif ++ return 0; + } + + ++#ifdef LNUM_COMPLEX ++LUA_API lua_Complex lua_tocomplex (lua_State *L, int idx) { ++ TValue tmp; ++ const TValue *o = index2adr(L, idx); ++ if (tonumber(o, &tmp)) ++ return nvalue_complex(o); ++ return 0; ++} ++#endif ++ ++ + LUA_API int lua_toboolean (lua_State *L, int idx) { + const TValue *o = index2adr(L, idx); + return !l_isfalse(o); +@@ -364,6 +408,7 @@ + case LUA_TSTRING: return tsvalue(o)->len; + case LUA_TUSERDATA: return uvalue(o)->len; + case LUA_TTABLE: return luaH_getn(hvalue(o)); ++ case LUA_TINT: + case LUA_TNUMBER: { + size_t l; + lua_lock(L); /* `luaV_tostring' may create a new string */ +@@ -426,6 +471,8 @@ + } + + ++/* 'lua_pushnumber()' may lose accuracy on integers, 'lua_pushinteger' will not. ++ */ + LUA_API void lua_pushnumber (lua_State *L, lua_Number n) { + lua_lock(L); + setnvalue(L->top, n); +@@ -434,12 +481,22 @@ + } + + +-LUA_API void lua_pushinteger (lua_State *L, lua_Integer n) { ++LUA_API void lua_pushinteger (lua_State *L, lua_Integer i) { ++ lua_lock(L); ++ setivalue(L->top, i); ++ api_incr_top(L); ++ lua_unlock(L); ++} ++ ++ ++#ifdef LNUM_COMPLEX ++LUA_API void lua_pushcomplex (lua_State *L, lua_Complex v) { + lua_lock(L); +- setnvalue(L->top, cast_num(n)); ++ setnvalue_complex( L->top, v ); + api_incr_top(L); + lua_unlock(L); + } ++#endif + + + LUA_API void lua_pushlstring (lua_State *L, const char *s, size_t len) { +@@ -569,7 +626,7 @@ + lua_lock(L); + o = index2adr(L, idx); + api_check(L, ttistable(o)); +- setobj2s(L, L->top, luaH_getnum(hvalue(o), n)); ++ setobj2s(L, L->top, luaH_getint(hvalue(o), n)); + api_incr_top(L); + lua_unlock(L); + } +@@ -597,6 +654,9 @@ + case LUA_TUSERDATA: + mt = uvalue(obj)->metatable; + break; ++ case LUA_TINT: ++ mt = G(L)->mt[LUA_TNUMBER]; ++ break; + default: + mt = G(L)->mt[ttype(obj)]; + break; +@@ -687,7 +747,7 @@ + api_checknelems(L, 1); + o = index2adr(L, idx); + api_check(L, ttistable(o)); +- setobj2t(L, luaH_setnum(L, hvalue(o), n), L->top-1); ++ setobj2t(L, luaH_setint(L, hvalue(o), n), L->top-1); + luaC_barriert(L, hvalue(o), L->top-1); + L->top--; + lua_unlock(L); +@@ -721,7 +781,7 @@ + break; + } + default: { +- G(L)->mt[ttype(obj)] = mt; ++ G(L)->mt[ttype_ext(obj)] = mt; + break; + } + } +@@ -1085,3 +1145,32 @@ + return name; + } + ++ ++/* Help function for 'luaB_tonumber()', avoids multiple str->number ++ * conversions for Lua "tonumber()". ++ * ++ * Also pushes floating point numbers with integer value as integer, which ++ * can be used by 'tonumber()' in scripts to bring values back to integer ++ * realm. ++ * ++ * Note: The 'back to integer realm' is _not_ to affect string conversions: ++ * 'tonumber("4294967295.1")' should give a floating point value, although ++ * the value would be 4294967296 (and storable in int64 realm). ++ */ ++int lua_pushvalue_as_number (lua_State *L, int idx) ++{ ++ const TValue *o = index2adr(L, idx); ++ TValue tmp; ++ lua_Integer i; ++ if (ttisnumber(o)) { ++ if ( (!ttisint(o)) && tt_integer_valued(o,&i)) { ++ lua_pushinteger( L, i ); ++ return 1; ++ } ++ } else if (!tonumber(o, &tmp)) { ++ return 0; ++ } ++ if (ttisint(o)) lua_pushinteger( L, ivalue(o) ); ++ else lua_pushnumber( L, nvalue_fast(o) ); ++ return 1; ++} +Index: lua-5.1.4/src/lapi.h +=================================================================== +--- lua-5.1.4.orig/src/lapi.h 2008-08-24 16:46:37.000000000 +0200 ++++ lua-5.1.4/src/lapi.h 2008-08-24 16:48:20.000000000 +0200 +@@ -13,4 +13,6 @@ + + LUAI_FUNC void luaA_pushobject (lua_State *L, const TValue *o); + ++int lua_pushvalue_as_number (lua_State *L, int idx); ++ + #endif +Index: lua-5.1.4/src/lauxlib.c +=================================================================== +--- lua-5.1.4.orig/src/lauxlib.c 2008-08-24 16:46:37.000000000 +0200 ++++ lua-5.1.4/src/lauxlib.c 2008-08-24 16:48:20.000000000 +0200 +@@ -23,7 +23,7 @@ + #include "lua.h" + + #include "lauxlib.h" +- ++#include "llimits.h" + + #define FREELIST_REF 0 /* free list of references */ + +@@ -66,7 +66,7 @@ + + + static void tag_error (lua_State *L, int narg, int tag) { +- luaL_typerror(L, narg, lua_typename(L, tag)); ++ luaL_typerror(L, narg, tag==LUA_TINT ? "integer" : lua_typename(L, tag)); + } + + +@@ -188,8 +188,8 @@ + + LUALIB_API lua_Integer luaL_checkinteger (lua_State *L, int narg) { + lua_Integer d = lua_tointeger(L, narg); +- if (d == 0 && !lua_isnumber(L, narg)) /* avoid extra test when d is not 0 */ +- tag_error(L, narg, LUA_TNUMBER); ++ if (d == 0 && !lua_isinteger(L, narg)) /* avoid extra test when d is not 0 */ ++ tag_error(L, narg, LUA_TINT); + return d; + } + +@@ -200,6 +200,16 @@ + } + + ++#ifdef LNUM_COMPLEX ++LUALIB_API lua_Complex luaL_checkcomplex (lua_State *L, int narg) { ++ lua_Complex c = lua_tocomplex(L, narg); ++ if (c == 0 && !lua_isnumber(L, narg)) /* avoid extra test when c is not 0 */ ++ tag_error(L, narg, LUA_TNUMBER); ++ return c; ++} ++#endif ++ ++ + LUALIB_API int luaL_getmetafield (lua_State *L, int obj, const char *event) { + if (!lua_getmetatable(L, obj)) /* no metatable? */ + return 0; +Index: lua-5.1.4/src/lauxlib.h +=================================================================== +--- lua-5.1.4.orig/src/lauxlib.h 2008-08-24 16:46:37.000000000 +0200 ++++ lua-5.1.4/src/lauxlib.h 2008-08-24 16:48:20.000000000 +0200 +@@ -57,6 +57,12 @@ + LUALIB_API lua_Integer (luaL_checkinteger) (lua_State *L, int numArg); + LUALIB_API lua_Integer (luaL_optinteger) (lua_State *L, int nArg, + lua_Integer def); ++#define luaL_checkint32(L,narg) ((int)luaL_checkinteger(L,narg)) ++#define luaL_optint32(L,narg,def) ((int)luaL_optinteger(L,narg,def)) ++ ++#ifdef LNUM_COMPLEX ++ LUALIB_API lua_Complex (luaL_checkcomplex) (lua_State *L, int narg); ++#endif + + LUALIB_API void (luaL_checkstack) (lua_State *L, int sz, const char *msg); + LUALIB_API void (luaL_checktype) (lua_State *L, int narg, int t); +Index: lua-5.1.4/src/lbaselib.c +=================================================================== +--- lua-5.1.4.orig/src/lbaselib.c 2008-08-24 16:46:37.000000000 +0200 ++++ lua-5.1.4/src/lbaselib.c 2008-08-24 16:48:20.000000000 +0200 +@@ -18,7 +18,9 @@ + + #include "lauxlib.h" + #include "lualib.h" +- ++#include "llimits.h" ++#include "lobject.h" ++#include "lapi.h" + + + +@@ -54,20 +56,25 @@ + int base = luaL_optint(L, 2, 10); + if (base == 10) { /* standard conversion */ + luaL_checkany(L, 1); +- if (lua_isnumber(L, 1)) { +- lua_pushnumber(L, lua_tonumber(L, 1)); ++ if (lua_isnumber(L, 1)) { /* numeric string, or a number */ ++ lua_pushvalue_as_number(L,1); /* API extension (not to lose accuracy here) */ + return 1; +- } ++ } + } + else { + const char *s1 = luaL_checkstring(L, 1); + char *s2; +- unsigned long n; ++ unsigned LUA_INTEGER n; + luaL_argcheck(L, 2 <= base && base <= 36, 2, "base out of range"); +- n = strtoul(s1, &s2, base); ++ n = lua_str2ul(s1, &s2, base); + if (s1 != s2) { /* at least one valid digit? */ + while (isspace((unsigned char)(*s2))) s2++; /* skip trailing spaces */ + if (*s2 == '\0') { /* no invalid trailing characters? */ ++ ++ /* Push as number, there needs to be separate 'luaB_tointeger' for ++ * when the caller wants to preserve the bits (matters if unsigned ++ * values are used). ++ */ + lua_pushnumber(L, (lua_Number)n); + return 1; + } +@@ -144,7 +151,7 @@ + luaL_checktype(L, 2, LUA_TTABLE); + getfunc(L, 0); + lua_pushvalue(L, 2); +- if (lua_isnumber(L, 1) && lua_tonumber(L, 1) == 0) { ++ if (lua_isnumber(L, 1) && lua_tointeger(L, 1) == 0) { + /* change environment of current thread */ + lua_pushthread(L); + lua_insert(L, -2); +@@ -209,7 +216,7 @@ + return 1; + } + default: { +- lua_pushnumber(L, res); ++ lua_pushinteger(L, res); + return 1; + } + } +@@ -631,6 +638,8 @@ + luaL_register(L, "_G", base_funcs); + lua_pushliteral(L, LUA_VERSION); + lua_setglobal(L, "_VERSION"); /* set global _VERSION */ ++ lua_pushliteral(L, LUA_LNUM); ++ lua_setglobal(L, "_LNUM"); /* "[complex] double|float|ldouble int32|int64" */ + /* `ipairs' and `pairs' need auxliliary functions as upvalues */ + auxopen(L, "ipairs", luaB_ipairs, ipairsaux); + auxopen(L, "pairs", luaB_pairs, luaB_next); +Index: lua-5.1.4/src/lcode.c +=================================================================== +--- lua-5.1.4.orig/src/lcode.c 2008-08-24 16:46:37.000000000 +0200 ++++ lua-5.1.4/src/lcode.c 2008-08-24 16:48:20.000000000 +0200 +@@ -22,13 +22,18 @@ + #include "lopcodes.h" + #include "lparser.h" + #include "ltable.h" ++#include "lnum.h" + + + #define hasjumps(e) ((e)->t != (e)->f) + +- + static int isnumeral(expdesc *e) { +- return (e->k == VKNUM && e->t == NO_JUMP && e->f == NO_JUMP); ++ int ek= ++#ifdef LNUM_COMPLEX ++ (e->k == VKNUM2) || ++#endif ++ (e->k == VKINT) || (e->k == VKNUM); ++ return (ek && e->t == NO_JUMP && e->f == NO_JUMP); + } + + +@@ -231,12 +236,16 @@ + TValue *idx = luaH_set(L, fs->h, k); + Proto *f = fs->f; + int oldsize = f->sizek; +- if (ttisnumber(idx)) { +- lua_assert(luaO_rawequalObj(&fs->f->k[cast_int(nvalue(idx))], v)); +- return cast_int(nvalue(idx)); ++ if (ttype(idx)==LUA_TNUMBER) { ++ luai_normalize(idx); ++ lua_assert( ttype(idx)==LUA_TINT ); /* had no fraction */ ++ } ++ if (ttisint(idx)) { ++ lua_assert(luaO_rawequalObj(&fs->f->k[ivalue(idx)], v)); ++ return cast_int(ivalue(idx)); + } + else { /* constant not found; create a new entry */ +- setnvalue(idx, cast_num(fs->nk)); ++ setivalue(idx, fs->nk); + luaM_growvector(L, f->k, fs->nk, f->sizek, TValue, + MAXARG_Bx, "constant table overflow"); + while (oldsize < f->sizek) setnilvalue(&f->k[oldsize++]); +@@ -261,6 +270,21 @@ + } + + ++int luaK_integerK (FuncState *fs, lua_Integer r) { ++ TValue o; ++ setivalue(&o, r); ++ return addk(fs, &o, &o); ++} ++ ++ ++#ifdef LNUM_COMPLEX ++static int luaK_imagK (FuncState *fs, lua_Number r) { ++ TValue o; ++ setnvalue_complex(&o, r*I); ++ return addk(fs, &o, &o); ++} ++#endif ++ + static int boolK (FuncState *fs, int b) { + TValue o; + setbvalue(&o, b); +@@ -359,6 +383,16 @@ + luaK_codeABx(fs, OP_LOADK, reg, luaK_numberK(fs, e->u.nval)); + break; + } ++ case VKINT: { ++ luaK_codeABx(fs, OP_LOADK, reg, luaK_integerK(fs, e->u.ival)); ++ break; ++ } ++#ifdef LNUM_COMPLEX ++ case VKNUM2: { ++ luaK_codeABx(fs, OP_LOADK, reg, luaK_imagK(fs, e->u.nval)); ++ break; ++ } ++#endif + case VRELOCABLE: { + Instruction *pc = &getcode(fs, e); + SETARG_A(*pc, reg); +@@ -444,6 +478,10 @@ + int luaK_exp2RK (FuncState *fs, expdesc *e) { + luaK_exp2val(fs, e); + switch (e->k) { ++#ifdef LNUM_COMPLEX ++ case VKNUM2: ++#endif ++ case VKINT: + case VKNUM: + case VTRUE: + case VFALSE: +@@ -451,6 +489,10 @@ + if (fs->nk <= MAXINDEXRK) { /* constant fit in RK operand? */ + e->u.s.info = (e->k == VNIL) ? nilK(fs) : + (e->k == VKNUM) ? luaK_numberK(fs, e->u.nval) : ++ (e->k == VKINT) ? luaK_integerK(fs, e->u.ival) : ++#ifdef LNUM_COMPLEX ++ (e->k == VKNUM2) ? luaK_imagK(fs, e->u.nval) : ++#endif + boolK(fs, (e->k == VTRUE)); + e->k = VK; + return RKASK(e->u.s.info); +@@ -540,7 +582,10 @@ + int pc; /* pc of last jump */ + luaK_dischargevars(fs, e); + switch (e->k) { +- case VK: case VKNUM: case VTRUE: { ++#ifdef LNUM_COMPLEX ++ case VKNUM2: ++#endif ++ case VKINT: case VK: case VKNUM: case VTRUE: { + pc = NO_JUMP; /* always true; do nothing */ + break; + } +@@ -598,7 +643,10 @@ + e->k = VTRUE; + break; + } +- case VK: case VKNUM: case VTRUE: { ++#ifdef LNUM_COMPLEX ++ case VKNUM2: ++#endif ++ case VKINT: case VK: case VKNUM: case VTRUE: { + e->k = VFALSE; + break; + } +@@ -634,25 +682,70 @@ + + static int constfolding (OpCode op, expdesc *e1, expdesc *e2) { + lua_Number v1, v2, r; ++ int vkres= VKNUM; + if (!isnumeral(e1) || !isnumeral(e2)) return 0; +- v1 = e1->u.nval; +- v2 = e2->u.nval; ++ ++ /* real and imaginary parts don't mix. */ ++#ifdef LNUM_COMPLEX ++ if (e1->k == VKNUM2) { ++ if ((op != OP_UNM) && (e2->k != VKNUM2)) return 0; ++ vkres= VKNUM2; } ++ else if (e2->k == VKNUM2) { return 0; } ++#endif ++ if ((e1->k == VKINT) && (e2->k == VKINT)) { ++ lua_Integer i1= e1->u.ival, i2= e2->u.ival; ++ lua_Integer rr; ++ int done= 0; ++ /* Integer/integer calculations (may end up producing floating point) */ ++ switch (op) { ++ case OP_ADD: done= try_addint( &rr, i1, i2 ); break; ++ case OP_SUB: done= try_subint( &rr, i1, i2 ); break; ++ case OP_MUL: done= try_mulint( &rr, i1, i2 ); break; ++ case OP_DIV: done= try_divint( &rr, i1, i2 ); break; ++ case OP_MOD: done= try_modint( &rr, i1, i2 ); break; ++ case OP_POW: done= try_powint( &rr, i1, i2 ); break; ++ case OP_UNM: done= try_unmint( &rr, i1 ); break; ++ default: done= 0; break; ++ } ++ if (done) { ++ e1->u.ival = rr; /* remained within integer range */ ++ return 1; ++ } ++ } ++ v1 = (e1->k == VKINT) ? ((lua_Number)e1->u.ival) : e1->u.nval; ++ v2 = (e2->k == VKINT) ? ((lua_Number)e2->u.ival) : e2->u.nval; ++ + switch (op) { + case OP_ADD: r = luai_numadd(v1, v2); break; + case OP_SUB: r = luai_numsub(v1, v2); break; +- case OP_MUL: r = luai_nummul(v1, v2); break; ++ case OP_MUL: ++#ifdef LNUM_COMPLEX ++ if (vkres==VKNUM2) return 0; /* leave to runtime (could do here, but not worth it?) */ ++#endif ++ r = luai_nummul(v1, v2); break; + case OP_DIV: + if (v2 == 0) return 0; /* do not attempt to divide by 0 */ +- r = luai_numdiv(v1, v2); break; ++#ifdef LNUM_COMPLEX ++ if (vkres==VKNUM2) return 0; /* leave to runtime */ ++#endif ++ r = luai_numdiv(v1, v2); break; + case OP_MOD: + if (v2 == 0) return 0; /* do not attempt to divide by 0 */ ++#ifdef LNUM_COMPLEX ++ if (vkres==VKNUM2) return 0; /* leave to runtime */ ++#endif + r = luai_nummod(v1, v2); break; +- case OP_POW: r = luai_numpow(v1, v2); break; ++ case OP_POW: ++#ifdef LNUM_COMPLEX ++ if (vkres==VKNUM2) return 0; /* leave to runtime */ ++#endif ++ r = luai_numpow(v1, v2); break; + case OP_UNM: r = luai_numunm(v1); break; + case OP_LEN: return 0; /* no constant folding for 'len' */ + default: lua_assert(0); r = 0; break; + } + if (luai_numisnan(r)) return 0; /* do not attempt to produce NaN */ ++ e1->k = cast(expkind,vkres); + e1->u.nval = r; + return 1; + } +@@ -696,7 +789,8 @@ + + void luaK_prefix (FuncState *fs, UnOpr op, expdesc *e) { + expdesc e2; +- e2.t = e2.f = NO_JUMP; e2.k = VKNUM; e2.u.nval = 0; ++ e2.t = e2.f = NO_JUMP; e2.k = VKINT; e2.u.ival = 0; ++ + switch (op) { + case OPR_MINUS: { + if (!isnumeral(e)) +Index: lua-5.1.4/src/lcode.h +=================================================================== +--- lua-5.1.4.orig/src/lcode.h 2008-08-24 16:46:37.000000000 +0200 ++++ lua-5.1.4/src/lcode.h 2008-08-24 16:48:20.000000000 +0200 +@@ -71,6 +71,6 @@ + LUAI_FUNC void luaK_infix (FuncState *fs, BinOpr op, expdesc *v); + LUAI_FUNC void luaK_posfix (FuncState *fs, BinOpr op, expdesc *v1, expdesc *v2); + LUAI_FUNC void luaK_setlist (FuncState *fs, int base, int nelems, int tostore); +- ++LUAI_FUNC int luaK_integerK (FuncState *fs, lua_Integer r); + + #endif +Index: lua-5.1.4/src/ldebug.c +=================================================================== +--- lua-5.1.4.orig/src/ldebug.c 2008-08-24 16:46:37.000000000 +0200 ++++ lua-5.1.4/src/ldebug.c 2008-08-24 16:48:20.000000000 +0200 +@@ -183,7 +183,7 @@ + int *lineinfo = f->l.p->lineinfo; + int i; + for (i=0; i<f->l.p->sizelineinfo; i++) +- setbvalue(luaH_setnum(L, t, lineinfo[i]), 1); ++ setbvalue(luaH_setint(L, t, lineinfo[i]), 1); + sethvalue(L, L->top, t); + } + incr_top(L); +@@ -566,7 +566,7 @@ + + void luaG_typeerror (lua_State *L, const TValue *o, const char *op) { + const char *name = NULL; +- const char *t = luaT_typenames[ttype(o)]; ++ const char *t = luaT_typenames[ttype_ext(o)]; + const char *kind = (isinstack(L->ci, o)) ? + getobjname(L, L->ci, cast_int(o - L->base), &name) : + NULL; +@@ -594,8 +594,8 @@ + + + int luaG_ordererror (lua_State *L, const TValue *p1, const TValue *p2) { +- const char *t1 = luaT_typenames[ttype(p1)]; +- const char *t2 = luaT_typenames[ttype(p2)]; ++ const char *t1 = luaT_typenames[ttype_ext(p1)]; ++ const char *t2 = luaT_typenames[ttype_ext(p2)]; + if (t1[2] == t2[2]) + luaG_runerror(L, "attempt to compare two %s values", t1); + else +Index: lua-5.1.4/src/ldo.c +=================================================================== +--- lua-5.1.4.orig/src/ldo.c 2008-08-24 16:46:37.000000000 +0200 ++++ lua-5.1.4/src/ldo.c 2008-08-24 16:48:20.000000000 +0200 +@@ -219,9 +219,9 @@ + luaC_checkGC(L); + htab = luaH_new(L, nvar, 1); /* create `arg' table */ + for (i=0; i<nvar; i++) /* put extra arguments into `arg' table */ +- setobj2n(L, luaH_setnum(L, htab, i+1), L->top - nvar + i); ++ setobj2n(L, luaH_setint(L, htab, i+1), L->top - nvar + i); + /* store counter in field `n' */ +- setnvalue(luaH_setstr(L, htab, luaS_newliteral(L, "n")), cast_num(nvar)); ++ setivalue(luaH_setstr(L, htab, luaS_newliteral(L, "n")), nvar); + } + #endif + /* move fixed parameters to final position */ +Index: lua-5.1.4/src/ldump.c +=================================================================== +--- lua-5.1.4.orig/src/ldump.c 2008-08-24 16:46:37.000000000 +0200 ++++ lua-5.1.4/src/ldump.c 2008-08-24 16:48:20.000000000 +0200 +@@ -52,6 +52,11 @@ + DumpVar(x,D); + } + ++static void DumpInteger(lua_Integer x, DumpState* D) ++{ ++ DumpVar(x,D); ++} ++ + static void DumpVector(const void* b, int n, size_t size, DumpState* D) + { + DumpInt(n,D); +@@ -93,8 +98,11 @@ + DumpChar(bvalue(o),D); + break; + case LUA_TNUMBER: +- DumpNumber(nvalue(o),D); ++ DumpNumber(nvalue_fast(o),D); + break; ++ case LUA_TINT: ++ DumpInteger(ivalue(o),D); ++ break; + case LUA_TSTRING: + DumpString(rawtsvalue(o),D); + break; +Index: lua-5.1.4/src/liolib.c +=================================================================== +--- lua-5.1.4.orig/src/liolib.c 2008-08-24 16:46:37.000000000 +0200 ++++ lua-5.1.4/src/liolib.c 2008-08-24 16:48:20.000000000 +0200 +@@ -9,6 +9,7 @@ + #include <stdio.h> + #include <stdlib.h> + #include <string.h> ++#include <ctype.h> + + #define liolib_c + #define LUA_LIB +@@ -18,7 +19,8 @@ + #include "lauxlib.h" + #include "lualib.h" + +- ++#include "lnum.h" ++#include "llex.h" + + #define IO_INPUT 1 + #define IO_OUTPUT 2 +@@ -269,6 +271,13 @@ + ** ======================================================= + */ + ++/* ++* Many problems if we intend the same 'n' format specifier (see 'file:read()') ++* to work for both FP and integer numbers, without losing their accuracy. So ++* we don't. 'n' reads numbers as floating points, 'i' as integers. Old code ++* remains valid, but won't provide full integer accuracy (this only matters ++* with float FP and/or 64-bit integers). ++*/ + + static int read_number (lua_State *L, FILE *f) { + lua_Number d; +@@ -279,6 +288,43 @@ + else return 0; /* read fails */ + } + ++static int read_integer (lua_State *L, FILE *f) { ++ lua_Integer i; ++ if (fscanf(f, LUA_INTEGER_SCAN, &i) == 1) { ++ lua_pushinteger(L, i); ++ return 1; ++ } ++ else return 0; /* read fails */ ++} ++ ++#ifdef LNUM_COMPLEX ++static int read_complex (lua_State *L, FILE *f) { ++ /* NNN / NNNi / NNN+MMMi / NNN-MMMi */ ++ lua_Number a,b; ++ if (fscanf(f, LUA_NUMBER_SCAN, &a) == 1) { ++ int c=fgetc(f); ++ switch(c) { ++ case 'i': ++ lua_pushcomplex(L, a*I); ++ return 1; ++ case '+': ++ case '-': ++ /* "i" is consumed if at the end; just 'NNN+MMM' will most likely ++ * behave as if "i" was there? (TBD: test) ++ */ ++ if (fscanf(f, LUA_NUMBER_SCAN "i", &b) == 1) { ++ lua_pushcomplex(L, a+ (c=='+' ? b:-b)*I); ++ return 1; ++ } ++ } ++ ungetc( c,f ); ++ lua_pushnumber(L,a); /*real part only*/ ++ return 1; ++ } ++ return 0; /* read fails */ ++} ++#endif ++ + + static int test_eof (lua_State *L, FILE *f) { + int c = getc(f); +@@ -352,6 +398,14 @@ + case 'n': /* number */ + success = read_number(L, f); + break; ++ case 'i': /* integer (full accuracy) */ ++ success = read_integer(L, f); ++ break; ++#ifdef LNUM_COMPLEX ++ case 'c': /* complex */ ++ success = read_complex(L, f); ++ break; ++#endif + case 'l': /* line */ + success = read_line(L, f); + break; +@@ -412,9 +466,10 @@ + int status = 1; + for (; nargs--; arg++) { + if (lua_type(L, arg) == LUA_TNUMBER) { +- /* optimization: could be done exactly as for strings */ +- status = status && +- fprintf(f, LUA_NUMBER_FMT, lua_tonumber(L, arg)) > 0; ++ if (lua_isinteger(L,arg)) ++ status = status && fprintf(f, LUA_INTEGER_FMT, lua_tointeger(L, arg)) > 0; ++ else ++ status = status && fprintf(f, LUA_NUMBER_FMT, lua_tonumber(L, arg)) > 0; + } + else { + size_t l; +@@ -457,7 +512,7 @@ + static const char *const modenames[] = {"no", "full", "line", NULL}; + FILE *f = tofile(L); + int op = luaL_checkoption(L, 2, NULL, modenames); +- lua_Integer sz = luaL_optinteger(L, 3, LUAL_BUFFERSIZE); ++ size_t sz = luaL_optint32(L, 3, LUAL_BUFFERSIZE); + int res = setvbuf(f, NULL, mode[op], sz); + return pushresult(L, res == 0, NULL); + } +Index: lua-5.1.4/src/llex.c +=================================================================== +--- lua-5.1.4.orig/src/llex.c 2008-08-24 16:46:37.000000000 +0200 ++++ lua-5.1.4/src/llex.c 2008-08-24 16:48:20.000000000 +0200 +@@ -22,6 +22,7 @@ + #include "lstring.h" + #include "ltable.h" + #include "lzio.h" ++#include "lnum.h" + + + +@@ -34,13 +35,17 @@ + + + /* ORDER RESERVED */ +-const char *const luaX_tokens [] = { ++static const char *const luaX_tokens [] = { + "and", "break", "do", "else", "elseif", + "end", "false", "for", "function", "if", + "in", "local", "nil", "not", "or", "repeat", + "return", "then", "true", "until", "while", + "..", "...", "==", ">=", "<=", "~=", + "<number>", "<name>", "<string>", "<eof>", ++ "<integer>", ++#ifdef LNUM_COMPLEX ++ "<number2>", ++#endif + NULL + }; + +@@ -90,7 +95,11 @@ + switch (token) { + case TK_NAME: + case TK_STRING: ++ case TK_INT: + case TK_NUMBER: ++#ifdef LNUM_COMPLEX ++ case TK_NUMBER2: ++#endif + save(ls, '\0'); + return luaZ_buffer(ls->buff); + default: +@@ -173,23 +182,27 @@ + if (p[n] == from) p[n] = to; + } + +- +-static void trydecpoint (LexState *ls, SemInfo *seminfo) { ++/* TK_NUMBER (/ TK_NUMBER2) */ ++static int trydecpoint (LexState *ls, SemInfo *seminfo) { + /* format error: try to update decimal point separator */ + struct lconv *cv = localeconv(); + char old = ls->decpoint; ++ int ret; + ls->decpoint = (cv ? cv->decimal_point[0] : '.'); + buffreplace(ls, old, ls->decpoint); /* try updated decimal separator */ +- if (!luaO_str2d(luaZ_buffer(ls->buff), &seminfo->r)) { ++ ret= luaO_str2d(luaZ_buffer(ls->buff), &seminfo->r, NULL); ++ if (!ret) { + /* format error with correct decimal point: no more options */ + buffreplace(ls, ls->decpoint, '.'); /* undo change (for error message) */ + luaX_lexerror(ls, "malformed number", TK_NUMBER); + } ++ return ret; + } + + +-/* LUA_NUMBER */ +-static void read_numeral (LexState *ls, SemInfo *seminfo) { ++/* TK_NUMBER / TK_INT (/TK_NUMBER2) */ ++static int read_numeral (LexState *ls, SemInfo *seminfo) { ++ int ret; + lua_assert(isdigit(ls->current)); + do { + save_and_next(ls); +@@ -200,8 +213,9 @@ + save_and_next(ls); + save(ls, '\0'); + buffreplace(ls, '.', ls->decpoint); /* follow locale for decimal point */ +- if (!luaO_str2d(luaZ_buffer(ls->buff), &seminfo->r)) /* format error? */ +- trydecpoint(ls, seminfo); /* try to update decimal point separator */ ++ ret= luaO_str2d(luaZ_buffer(ls->buff), &seminfo->r, &seminfo->i ); ++ if (!ret) return trydecpoint(ls, seminfo); /* try to update decimal point separator */ ++ return ret; + } + + +@@ -329,6 +343,7 @@ + } + + ++/* char / TK_* */ + static int llex (LexState *ls, SemInfo *seminfo) { + luaZ_resetbuffer(ls->buff); + for (;;) { +@@ -400,8 +415,7 @@ + } + else if (!isdigit(ls->current)) return '.'; + else { +- read_numeral(ls, seminfo); +- return TK_NUMBER; ++ return read_numeral(ls, seminfo); + } + } + case EOZ: { +@@ -414,8 +428,7 @@ + continue; + } + else if (isdigit(ls->current)) { +- read_numeral(ls, seminfo); +- return TK_NUMBER; ++ return read_numeral(ls, seminfo); + } + else if (isalpha(ls->current) || ls->current == '_') { + /* identifier or reserved word */ +Index: lua-5.1.4/src/llex.h +=================================================================== +--- lua-5.1.4.orig/src/llex.h 2008-08-24 16:46:37.000000000 +0200 ++++ lua-5.1.4/src/llex.h 2008-08-24 16:48:20.000000000 +0200 +@@ -29,19 +29,22 @@ + TK_RETURN, TK_THEN, TK_TRUE, TK_UNTIL, TK_WHILE, + /* other terminal symbols */ + TK_CONCAT, TK_DOTS, TK_EQ, TK_GE, TK_LE, TK_NE, TK_NUMBER, +- TK_NAME, TK_STRING, TK_EOS ++ TK_NAME, TK_STRING, TK_EOS, TK_INT ++#ifdef LNUM_COMPLEX ++ , TK_NUMBER2 /* imaginary constants: Ni */ ++#endif + }; + + /* number of reserved words */ + #define NUM_RESERVED (cast(int, TK_WHILE-FIRST_RESERVED+1)) + + +-/* array with token `names' */ +-LUAI_DATA const char *const luaX_tokens []; +- +- ++/* SemInfo is a local data structure of 'llex.c', used for carrying a string ++ * or a number. A separate token (TK_*) will tell, how to interpret the data. ++ */ + typedef union { + lua_Number r; ++ lua_Integer i; + TString *ts; + } SemInfo; /* semantics information */ + +Index: lua-5.1.4/src/llimits.h +=================================================================== +--- lua-5.1.4.orig/src/llimits.h 2008-08-24 16:46:37.000000000 +0200 ++++ lua-5.1.4/src/llimits.h 2008-08-24 16:48:20.000000000 +0200 +@@ -49,6 +49,7 @@ + + /* result of a `usual argument conversion' over lua_Number */ + typedef LUAI_UACNUMBER l_uacNumber; ++typedef LUAI_UACINTEGER l_uacInteger; + + + /* internal assertions for in-house debugging */ +@@ -80,7 +81,6 @@ + #define cast_int(i) cast(int, (i)) + + +- + /* + ** type for virtual-machine instructions + ** must be an unsigned with (at least) 4 bytes (see details in lopcodes.h) +Index: lua-5.1.4/src/lmathlib.c +=================================================================== +--- lua-5.1.4.orig/src/lmathlib.c 2008-08-24 16:46:37.000000000 +0200 ++++ lua-5.1.4/src/lmathlib.c 2008-08-24 16:48:20.000000000 +0200 +@@ -4,7 +4,6 @@ + ** See Copyright Notice in lua.h + */ + +- + #include <stdlib.h> + #include <math.h> + +@@ -16,113 +15,210 @@ + #include "lauxlib.h" + #include "lualib.h" + ++/* 'luai_vectpow()' as a replacement for 'cpow()'. Defined in the header; we ++ * don't intrude the code libs internal functions. ++ */ ++#ifdef LNUM_COMPLEX ++# include "lnum.h" ++#endif + + #undef PI +-#define PI (3.14159265358979323846) +-#define RADIANS_PER_DEGREE (PI/180.0) +- ++#ifdef LNUM_FLOAT ++# define PI (3.14159265358979323846F) ++#elif defined(M_PI) ++# define PI M_PI ++#else ++# define PI (3.14159265358979323846264338327950288) ++#endif ++#define RADIANS_PER_DEGREE (PI/180) + ++#undef HUGE ++#ifdef LNUM_FLOAT ++# define HUGE HUGE_VALF ++#elif defined(LNUM_LDOUBLE) ++# define HUGE HUGE_VALL ++#else ++# define HUGE HUGE_VAL ++#endif + + static int math_abs (lua_State *L) { +- lua_pushnumber(L, fabs(luaL_checknumber(L, 1))); ++#ifdef LNUM_COMPLEX ++ lua_pushnumber(L, _LF(cabs) (luaL_checkcomplex(L,1))); ++#else ++ lua_pushnumber(L, _LF(fabs) (luaL_checknumber(L, 1))); ++#endif + return 1; + } + + static int math_sin (lua_State *L) { +- lua_pushnumber(L, sin(luaL_checknumber(L, 1))); ++#ifdef LNUM_COMPLEX ++ lua_pushcomplex(L, _LF(csin) (luaL_checkcomplex(L,1))); ++#else ++ lua_pushnumber(L, _LF(sin) (luaL_checknumber(L, 1))); ++#endif + return 1; + } + + static int math_sinh (lua_State *L) { +- lua_pushnumber(L, sinh(luaL_checknumber(L, 1))); ++#ifdef LNUM_COMPLEX ++ lua_pushcomplex(L, _LF(csinh) (luaL_checkcomplex(L,1))); ++#else ++ lua_pushnumber(L, _LF(sinh) (luaL_checknumber(L, 1))); ++#endif + return 1; + } + + static int math_cos (lua_State *L) { +- lua_pushnumber(L, cos(luaL_checknumber(L, 1))); ++#ifdef LNUM_COMPLEX ++ lua_pushcomplex(L, _LF(ccos) (luaL_checkcomplex(L,1))); ++#else ++ lua_pushnumber(L, _LF(cos) (luaL_checknumber(L, 1))); ++#endif + return 1; + } + + static int math_cosh (lua_State *L) { +- lua_pushnumber(L, cosh(luaL_checknumber(L, 1))); ++#ifdef LNUM_COMPLEX ++ lua_pushcomplex(L, _LF(ccosh) (luaL_checkcomplex(L,1))); ++#else ++ lua_pushnumber(L, _LF(cosh) (luaL_checknumber(L, 1))); ++#endif + return 1; + } + + static int math_tan (lua_State *L) { +- lua_pushnumber(L, tan(luaL_checknumber(L, 1))); ++#ifdef LNUM_COMPLEX ++ lua_pushcomplex(L, _LF(ctan) (luaL_checkcomplex(L,1))); ++#else ++ lua_pushnumber(L, _LF(tan) (luaL_checknumber(L, 1))); ++#endif + return 1; + } + + static int math_tanh (lua_State *L) { +- lua_pushnumber(L, tanh(luaL_checknumber(L, 1))); ++#ifdef LNUM_COMPLEX ++ lua_pushcomplex(L, _LF(ctanh) (luaL_checkcomplex(L,1))); ++#else ++ lua_pushnumber(L, _LF(tanh) (luaL_checknumber(L, 1))); ++#endif + return 1; + } + + static int math_asin (lua_State *L) { +- lua_pushnumber(L, asin(luaL_checknumber(L, 1))); ++#ifdef LNUM_COMPLEX ++ lua_pushcomplex(L, _LF(casin) (luaL_checkcomplex(L,1))); ++#else ++ lua_pushnumber(L, _LF(asin) (luaL_checknumber(L, 1))); ++#endif + return 1; + } + + static int math_acos (lua_State *L) { +- lua_pushnumber(L, acos(luaL_checknumber(L, 1))); ++#ifdef LNUM_COMPLEX ++ lua_pushcomplex(L, _LF(cacos) (luaL_checkcomplex(L,1))); ++#else ++ lua_pushnumber(L, _LF(acos) (luaL_checknumber(L, 1))); ++#endif + return 1; + } + + static int math_atan (lua_State *L) { +- lua_pushnumber(L, atan(luaL_checknumber(L, 1))); ++#ifdef LNUM_COMPLEX ++ lua_pushcomplex(L, _LF(catan) (luaL_checkcomplex(L,1))); ++#else ++ lua_pushnumber(L, _LF(atan) (luaL_checknumber(L, 1))); ++#endif + return 1; + } + + static int math_atan2 (lua_State *L) { +- lua_pushnumber(L, atan2(luaL_checknumber(L, 1), luaL_checknumber(L, 2))); ++ /* scalars only */ ++ lua_pushnumber(L, _LF(atan2) (luaL_checknumber(L, 1), luaL_checknumber(L, 2))); + return 1; + } + + static int math_ceil (lua_State *L) { +- lua_pushnumber(L, ceil(luaL_checknumber(L, 1))); ++#ifdef LNUM_COMPLEX ++ lua_Complex v= luaL_checkcomplex(L, 1); ++ lua_pushcomplex(L, _LF(ceil) (_LF(creal)(v)) + _LF(ceil) (_LF(cimag)(v))*I); ++#else ++ lua_pushnumber(L, _LF(ceil) (luaL_checknumber(L, 1))); ++#endif + return 1; + } + + static int math_floor (lua_State *L) { +- lua_pushnumber(L, floor(luaL_checknumber(L, 1))); ++#ifdef LNUM_COMPLEX ++ lua_Complex v= luaL_checkcomplex(L, 1); ++ lua_pushcomplex(L, _LF(floor) (_LF(creal)(v)) + _LF(floor) (_LF(cimag)(v))*I); ++#else ++ lua_pushnumber(L, _LF(floor) (luaL_checknumber(L, 1))); ++#endif + return 1; + } + +-static int math_fmod (lua_State *L) { +- lua_pushnumber(L, fmod(luaL_checknumber(L, 1), luaL_checknumber(L, 2))); ++static int math_fmod (lua_State *L) { ++ /* scalars only */ ++ lua_pushnumber(L, _LF(fmod) (luaL_checknumber(L, 1), luaL_checknumber(L, 2))); + return 1; + } + + static int math_modf (lua_State *L) { +- double ip; +- double fp = modf(luaL_checknumber(L, 1), &ip); ++ /* scalars only */ ++ lua_Number ip; ++ lua_Number fp = _LF(modf) (luaL_checknumber(L, 1), &ip); + lua_pushnumber(L, ip); + lua_pushnumber(L, fp); + return 2; + } + + static int math_sqrt (lua_State *L) { +- lua_pushnumber(L, sqrt(luaL_checknumber(L, 1))); ++#ifdef LNUM_COMPLEX ++ lua_pushcomplex(L, _LF(csqrt) (luaL_checkcomplex(L,1))); ++#else ++ lua_pushnumber(L, _LF(sqrt) (luaL_checknumber(L, 1))); ++#endif + return 1; + } + + static int math_pow (lua_State *L) { +- lua_pushnumber(L, pow(luaL_checknumber(L, 1), luaL_checknumber(L, 2))); ++#ifdef LNUM_COMPLEX ++ /* C99 'cpow' gives somewhat inaccurate results (i.e. (-1)^2 = -1+1.2246467991474e-16i). ++ * 'luai_vectpow' smoothens such, reusing it is the reason we need to #include "lnum.h". ++ */ ++ lua_pushcomplex(L, luai_vectpow(luaL_checkcomplex(L,1), luaL_checkcomplex(L,2))); ++#else ++ lua_pushnumber(L, _LF(pow) (luaL_checknumber(L, 1), luaL_checknumber(L, 2))); ++#endif + return 1; + } + + static int math_log (lua_State *L) { +- lua_pushnumber(L, log(luaL_checknumber(L, 1))); ++#ifdef LNUM_COMPLEX ++ lua_pushcomplex(L, _LF(clog) (luaL_checkcomplex(L,1))); ++#else ++ lua_pushnumber(L, _LF(log) (luaL_checknumber(L, 1))); ++#endif + return 1; + } + + static int math_log10 (lua_State *L) { +- lua_pushnumber(L, log10(luaL_checknumber(L, 1))); ++#ifdef LNUM_COMPLEX ++ /* Not in standard <complex.h> , but easy to calculate: log_a(x) = log_b(x) / log_b(a) ++ */ ++ lua_pushcomplex(L, _LF(clog) (luaL_checkcomplex(L,1)) / _LF(log) (10)); ++#else ++ lua_pushnumber(L, _LF(log10) (luaL_checknumber(L, 1))); ++#endif + return 1; + } + + static int math_exp (lua_State *L) { +- lua_pushnumber(L, exp(luaL_checknumber(L, 1))); ++#ifdef LNUM_COMPLEX ++ lua_pushcomplex(L, _LF(cexp) (luaL_checkcomplex(L,1))); ++#else ++ lua_pushnumber(L, _LF(exp) (luaL_checknumber(L, 1))); ++#endif + return 1; + } + +@@ -138,19 +234,20 @@ + + static int math_frexp (lua_State *L) { + int e; +- lua_pushnumber(L, frexp(luaL_checknumber(L, 1), &e)); ++ lua_pushnumber(L, _LF(frexp) (luaL_checknumber(L, 1), &e)); + lua_pushinteger(L, e); + return 2; + } + + static int math_ldexp (lua_State *L) { +- lua_pushnumber(L, ldexp(luaL_checknumber(L, 1), luaL_checkint(L, 2))); ++ lua_pushnumber(L, _LF(ldexp) (luaL_checknumber(L, 1), luaL_checkint(L, 2))); + return 1; + } + + + + static int math_min (lua_State *L) { ++ /* scalars only */ + int n = lua_gettop(L); /* number of arguments */ + lua_Number dmin = luaL_checknumber(L, 1); + int i; +@@ -165,6 +262,7 @@ + + + static int math_max (lua_State *L) { ++ /* scalars only */ + int n = lua_gettop(L); /* number of arguments */ + lua_Number dmax = luaL_checknumber(L, 1); + int i; +@@ -182,25 +280,20 @@ + /* the `%' avoids the (rare) case of r==1, and is needed also because on + some systems (SunOS!) `rand()' may return a value larger than RAND_MAX */ + lua_Number r = (lua_Number)(rand()%RAND_MAX) / (lua_Number)RAND_MAX; +- switch (lua_gettop(L)) { /* check number of arguments */ +- case 0: { /* no arguments */ +- lua_pushnumber(L, r); /* Number between 0 and 1 */ +- break; +- } +- case 1: { /* only upper limit */ +- int u = luaL_checkint(L, 1); +- luaL_argcheck(L, 1<=u, 1, "interval is empty"); +- lua_pushnumber(L, floor(r*u)+1); /* int between 1 and `u' */ +- break; +- } +- case 2: { /* lower and upper limits */ +- int l = luaL_checkint(L, 1); +- int u = luaL_checkint(L, 2); +- luaL_argcheck(L, l<=u, 2, "interval is empty"); +- lua_pushnumber(L, floor(r*(u-l+1))+l); /* int between `l' and `u' */ +- break; +- } +- default: return luaL_error(L, "wrong number of arguments"); ++ int n= lua_gettop(L); /* number of arguments */ ++ if (n==0) { /* no arguments: range [0,1) */ ++ lua_pushnumber(L, r); ++ } else if (n<=2) { /* int range [1,u] or [l,u] */ ++ int l= n==1 ? 1 : luaL_checkint(L, 1); ++ int u = luaL_checkint(L, n); ++ int tmp; ++ lua_Number d; ++ luaL_argcheck(L, l<=u, n, "interval is empty"); ++ d= _LF(floor)(r*(u-l+1)); ++ lua_number2int(tmp,d); ++ lua_pushinteger(L, l+tmp); ++ } else { ++ return luaL_error(L, "wrong number of arguments"); + } + return 1; + } +@@ -211,6 +304,66 @@ + return 0; + } + ++/* ++* Lua 5.1 does not have acosh, asinh, atanh for scalars (not ANSI C) ++*/ ++#if __STDC_VERSION__ >= 199901L ++static int math_acosh (lua_State *L) { ++# ifdef LNUM_COMPLEX ++ lua_pushcomplex(L, _LF(cacosh) (luaL_checkcomplex(L,1))); ++# else ++ lua_pushnumber(L, _LF(acosh) (luaL_checknumber(L,1))); ++# endif ++ return 1; ++} ++static int math_asinh (lua_State *L) { ++# ifdef LNUM_COMPLEX ++ lua_pushcomplex(L, _LF(casinh) (luaL_checkcomplex(L,1))); ++# else ++ lua_pushnumber(L, _LF(asinh) (luaL_checknumber(L,1))); ++# endif ++ return 1; ++} ++static int math_atanh (lua_State *L) { ++# ifdef LNUM_COMPLEX ++ lua_pushcomplex(L, _LF(catanh) (luaL_checkcomplex(L,1))); ++# else ++ lua_pushnumber(L, _LF(atanh) (luaL_checknumber(L,1))); ++# endif ++ return 1; ++} ++#endif ++ ++/* ++ * C99 complex functions, not covered above. ++*/ ++#ifdef LNUM_COMPLEX ++static int math_arg (lua_State *L) { ++ lua_pushnumber(L, _LF(carg) (luaL_checkcomplex(L,1))); ++ return 1; ++} ++ ++static int math_imag (lua_State *L) { ++ lua_pushnumber(L, _LF(cimag) (luaL_checkcomplex(L,1))); ++ return 1; ++} ++ ++static int math_real (lua_State *L) { ++ lua_pushnumber(L, _LF(creal) (luaL_checkcomplex(L,1))); ++ return 1; ++} ++ ++static int math_conj (lua_State *L) { ++ lua_pushcomplex(L, _LF(conj) (luaL_checkcomplex(L,1))); ++ return 1; ++} ++ ++static int math_proj (lua_State *L) { ++ lua_pushcomplex(L, _LF(cproj) (luaL_checkcomplex(L,1))); ++ return 1; ++} ++#endif ++ + + static const luaL_Reg mathlib[] = { + {"abs", math_abs}, +@@ -241,6 +394,18 @@ + {"sqrt", math_sqrt}, + {"tanh", math_tanh}, + {"tan", math_tan}, ++#if __STDC_VERSION__ >= 199901L ++ {"acosh", math_acosh}, ++ {"asinh", math_asinh}, ++ {"atanh", math_atanh}, ++#endif ++#ifdef LNUM_COMPLEX ++ {"arg", math_arg}, ++ {"imag", math_imag}, ++ {"real", math_real}, ++ {"conj", math_conj}, ++ {"proj", math_proj}, ++#endif + {NULL, NULL} + }; + +@@ -252,8 +417,10 @@ + luaL_register(L, LUA_MATHLIBNAME, mathlib); + lua_pushnumber(L, PI); + lua_setfield(L, -2, "pi"); +- lua_pushnumber(L, HUGE_VAL); ++ lua_pushnumber(L, HUGE); + lua_setfield(L, -2, "huge"); ++ lua_pushinteger(L, LUA_INTEGER_MAX ); ++ lua_setfield(L, -2, "hugeint"); + #if defined(LUA_COMPAT_MOD) + lua_getfield(L, -1, "fmod"); + lua_setfield(L, -2, "mod"); +Index: lua-5.1.4/src/lnum.c +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ lua-5.1.4/src/lnum.c 2008-08-24 16:48:20.000000000 +0200 +@@ -0,0 +1,312 @@ ++/* ++** $Id: lnum.c,v ... $ ++** Internal number model ++** See Copyright Notice in lua.h ++*/ ++ ++#include <stdlib.h> ++#include <math.h> ++#include <ctype.h> ++#include <string.h> ++#include <stdio.h> ++#include <errno.h> ++ ++#define lnum_c ++#define LUA_CORE ++ ++#include "lua.h" ++#include "llex.h" ++#include "lnum.h" ++ ++/* ++** lua_real2str converts a (non-complex) number to a string. ++** lua_str2real converts a string to a (non-complex) number. ++*/ ++#define lua_real2str(s,n) sprintf((s), LUA_NUMBER_FMT, (n)) ++ ++/* ++* Note: Only 'strtod()' is part of ANSI C; others are C99 and ++* may need '--std=c99' compiler setting (at least on Ubuntu 7.10). ++* ++* Visual C++ 2008 Express does not have 'strtof()', nor 'strtold()'. ++* References to '_strtold()' exist but don't compile. It seems best ++* to leave Windows users with DOUBLE only (or compile with MinGW). ++* ++* In practise, using '(long double)strtod' is a risky thing, since ++* it will cause accuracy loss in reading in numbers, and such losses ++* will pile up in later processing. Get a real 'strtold()' or don't ++* use that mode at all. ++*/ ++#ifdef LNUM_DOUBLE ++# define lua_str2real strtod ++#elif defined(LNUM_FLOAT) ++# define lua_str2real strtof ++#elif defined(LNUM_LDOUBLE) ++# define lua_str2real strtold ++#endif ++ ++#define lua_integer2str(s,v) sprintf((s), LUA_INTEGER_FMT, (v)) ++ ++/* 's' is expected to be LUAI_MAXNUMBER2STR long (enough for any number) ++*/ ++void luaO_num2buf( char *s, const TValue *o ) ++{ ++ lua_Number n; ++ lua_assert( ttisnumber(o) ); ++ ++ /* Reason to handle integers differently is not only speed, but accuracy as ++ * well. We want to make any integer tostring() without roundings, at all. ++ */ ++ if (ttisint(o)) { ++ lua_integer2str( s, ivalue(o) ); ++ return; ++ } ++ n= nvalue_fast(o); ++ lua_real2str(s, n); ++ ++#ifdef LNUM_COMPLEX ++ lua_Number n2= nvalue_img_fast(o); ++ if (n2!=0) { /* Postfix with +-Ni */ ++ int re0= (n == 0); ++ char *s2= re0 ? s : strchr(s,'\0'); ++ if ((!re0) && (n2>0)) *s2++= '+'; ++ lua_real2str( s2, n2 ); ++ strcat(s2,"i"); ++ } ++#endif ++} ++ ++/* ++* If a LUA_TNUMBER has integer value, give it. ++*/ ++int /*bool*/ tt_integer_valued( const TValue *o, lua_Integer *ref ) { ++ lua_Number d; ++ lua_Integer i; ++ ++ lua_assert( ttype(o)==LUA_TNUMBER ); ++ lua_assert( ref ); ++#ifdef LNUM_COMPLEX ++ if (nvalue_img_fast(o)!=0) return 0; ++#endif ++ d= nvalue_fast(o); ++ lua_number2integer(i, d); ++ if (cast_num(i) == d) { ++ *ref= i; return 1; ++ } ++ return 0; ++} ++ ++/* ++ * Lua 5.1.3 (using 'strtod()') allows 0x+hex but not 0+octal. This is good, ++ * and we should NOT use 'autobase' 0 with 'strtoul[l]()' for this reason. ++ * ++ * Lua 5.1.3 allows '0x...' numbers to overflow and lose precision; this is not ++ * good. On Visual C++ 2008, 'strtod()' does not even take them in. Better to ++ * require hex values to fit 'lua_Integer' or give an error that they don't? ++ * ++ * Full hex range (0 .. 0xff..ff) is stored as integers, not to lose any bits. ++ * Numerical value of 0xff..ff will be -1, if used in calculations. ++ * ++ * Returns: TK_INT for a valid integer, '*endptr_ref' updated ++ * TK_NUMBER for seemingly numeric, to be parsed as floating point ++ * 0 for bad characters, not a number (or '0x' out of range) ++ */ ++static int luaO_str2i (const char *s, lua_Integer *res, char **endptr_ref) { ++ char *endptr; ++ /* 'v' gets ULONG_MAX on possible overflow (which is > LUA_INTEGER_MAX); ++ * we don't have to check 'errno' here. ++ */ ++ unsigned LUA_INTEGER v= lua_str2ul(s, &endptr, 10); ++ if (endptr == s) return 0; /* nothing numeric */ ++ if (v==0 && *endptr=='x') { ++ errno= 0; /* needs to be set, 'strtoul[l]' does not clear it */ ++ v= lua_str2ul(endptr+1, &endptr, 16); /* retry as hex, unsigned range */ ++ if (errno==ERANGE) { /* clamped to 0xff..ff */ ++#if (defined(LNUM_INT32) && !defined(LNUM_FLOAT)) || defined(LNUM_LDOUBLE) ++ return TK_NUMBER; /* Allow to be read as floating point (has more integer range) */ ++#else ++ return 0; /* Reject the number */ ++#endif ++ } ++ } else if ((v > LUA_INTEGER_MAX) || (*endptr && (!isspace(*endptr)))) { ++ return TK_NUMBER; /* not in signed range, or has '.', 'e' etc. trailing */ ++ } ++ *res= (lua_Integer)v; ++ *endptr_ref= endptr; ++ return TK_INT; ++} ++ ++/* 0 / TK_NUMBER / TK_INT (/ TK_NUMBER2) */ ++int luaO_str2d (const char *s, lua_Number *res_n, lua_Integer *res_i) { ++ char *endptr; ++ int ret= TK_NUMBER; ++ /* Check integers first, if caller is allowing. ++ * If 'res2'==NULL, they're only looking for floating point. ++ */ ++ if (res_i) { ++ ret= luaO_str2i(s,res_i,&endptr); ++ if (ret==0) return 0; ++ } ++ if (ret==TK_NUMBER) { ++ lua_assert(res_n); ++ /* Note: Visual C++ 2008 Express 'strtod()' does not read in "0x..." ++ * numbers; it will read '0' and spit 'x' as endptr. ++ * This means hex constants not fitting in 'lua_Integer' won't ++ * be read in at all. What to do? ++ */ ++ *res_n = lua_str2real(s, &endptr); ++ if (endptr == s) return 0; /* conversion failed */ ++ /* Visual C++ 2008 'strtod()' does not allow "0x..." input. */ ++#if defined(_MSC_VER) && !defined(LNUM_FLOAT) && !defined(LNUM_INT64) ++ if (*res_n==0 && *endptr=='x') { ++ /* Hex constant too big for 'lua_Integer' but that could fit in 'lua_Number' ++ * integer bits ++ */ ++ unsigned __int64 v= _strtoui64( s, &endptr, 16 ); ++ /* We just let > 64 bit values be clamped to _UI64_MAX (MSDN does not say 'errno'==ERANGE would be set) */ ++ *res_n= cast_num(v); ++ if (*res_n != v) return 0; /* Would have lost accuracy */ ++ } ++#endif ++#ifdef LNUM_COMPLEX ++ if (*endptr == 'i') { endptr++; ret= TK_NUMBER2; } ++#endif ++ } ++ if (*endptr) { ++ while (isspace(cast(unsigned char, *endptr))) endptr++; ++ if (*endptr) return 0; /* invalid trail */ ++ } ++ return ret; ++} ++ ++ ++/* Functions for finding out, when integer operations remain in range ++ * (and doing them). ++ */ ++int try_addint( lua_Integer *r, lua_Integer ib, lua_Integer ic ) { ++ lua_Integer v= ib+ic; /* may overflow */ ++ if (ib>0 && ic>0) { if (v < 0) return 0; /*overflow, use floats*/ } ++ else if (ib<0 && ic<0) { if (v >= 0) return 0; } ++ *r= v; ++ return 1; ++} ++ ++int try_subint( lua_Integer *r, lua_Integer ib, lua_Integer ic ) { ++ lua_Integer v= ib-ic; /* may overflow */ ++ if (ib>=0 && ic<0) { if (v < 0) return 0; /*overflow, use floats*/ } ++ else if (ib<0 && ic>0) { if (v >= 0) return 0; } ++ *r= v; ++ return 1; ++} ++ ++int try_mulint( lua_Integer *r, lua_Integer ib, lua_Integer ic ) { ++ if (ib!=LUA_INTEGER_MIN && ic!=LUA_INTEGER_MIN) { ++ lua_Integer b= luai_abs(ib), c= luai_abs(ic); ++ if ( (ib==0) || (LUA_INTEGER_MAX/b >= c) ) { ++ *r= ib*ic; /* no overflow */ ++ return 1; ++ } ++ } else if (ib==0 || ic==0) { ++ *r= 0; return 1; ++ } ++ ++ /* Result can be LUA_INTEGER_MIN; if it is, calculating it using floating ++ * point will not cause accuracy loss. ++ */ ++ if ( luai_nummul( cast_num(ib), cast_num(ic) ) == LUA_INTEGER_MIN ) { ++ *r= LUA_INTEGER_MIN; ++ return 1; ++ } ++ return 0; ++} ++ ++int try_divint( lua_Integer *r, lua_Integer ib, lua_Integer ic ) { ++ /* N/0: leave to float side, to give an error ++ */ ++ if (ic==0) return 0; ++ ++ /* N/LUA_INTEGER_MIN: always non-integer results, or 0 or +1 ++ */ ++ if (ic==LUA_INTEGER_MIN) { ++ if (ib==LUA_INTEGER_MIN) { *r=1; return 1; } ++ if (ib==0) { *r=0; return 1; } ++ ++ /* LUA_INTEGER_MIN (-2^31|63)/N: calculate using float side (either the division ++ * causes non-integer results, or there is no accuracy loss in int->fp->int ++ * conversions (N=2,4,8,..,256 and N=2^30,2^29,..2^23). ++ */ ++ } else if (ib==LUA_INTEGER_MIN) { ++ lua_Number d= luai_numdiv( cast_num(LUA_INTEGER_MIN), cast_num(ic) ); ++ lua_Integer i; lua_number2integer(i,d); ++ if (cast_num(i)==d) { *r= i; return 1; } ++ ++ } else { ++ /* Note: We _can_ use ANSI C mod here, even on negative values, since ++ * we only test for == 0 (the sign would be implementation dependent). ++ */ ++ if (ib%ic == 0) { *r= ib/ic; return 1; } ++ } ++ ++ return 0; ++} ++ ++int try_modint( lua_Integer *r, lua_Integer ib, lua_Integer ic ) { ++ if (ic!=0) { ++ /* ANSI C can be trusted when b%c==0, or when values are non-negative. ++ * b - (floor(b/c) * c) ++ * --> ++ * + +: b - (b/c) * c (b % c can be used) ++ * - -: b - (b/c) * c (b % c could work, but not defined by ANSI C) ++ * 0 -: b - (b/c) * c (=0, b % c could work, but not defined by ANSI C) ++ * - +: b - (b/c-1) * c (when b!=-c) ++ * + -: b - (b/c-1) * c (when b!=-c) ++ * ++ * o MIN%MIN ends up 0, via overflow in calcs but that does not matter. ++ * o MIN%MAX ends up MAX-1 (and other such numbers), also after overflow, ++ * but that does not matter, results do. ++ */ ++ lua_Integer v= ib % ic; ++ if ( v!=0 && (ib<0 || ic<0) ) { ++ v= ib - ((ib/ic) - ((ib<=0 && ic<0) ? 0:1)) * ic; ++ } ++ /* Result should always have same sign as 2nd argument. (PIL2) */ ++ lua_assert( (v<0) ? (ic<0) : (v>0) ? (ic>0) : 1 ); ++ *r= v; ++ return 1; ++ } ++ return 0; /* let float side return NaN */ ++} ++ ++int try_powint( lua_Integer *r, lua_Integer ib, lua_Integer ic ) { ++ ++ /* In FLOAT/INT32 or FLOAT|DOUBLE/INT64 modes, calculating integer powers ++ * via FP realm may lose accuracy (i.e. 7^11 = 1977326743, which fits int32 ++ * but not 23-bit float mantissa). ++ * ++ * The current solution is dumb, but it works and uses little code. Use of ++ * integer powers is not anticipated to be very frequent (apart from 2^x, ++ * which is separately optimized). ++ */ ++ if (ib==0) *r=0; ++ else if (ic<0) return 0; /* FP realm */ ++ else if (ib==2 && ic < (int)sizeof(lua_Integer)*8-1) *r= ((lua_Integer)1)<<ic; /* 1,2,4,...2^30 | 2^62 optimization */ ++ else if (ic==0) *r=1; ++ else if (luai_abs(ib)==1) *r= (ic%2) ? ib:1; ++ else { ++ lua_Integer x= ib; ++ while( --ic ) { ++ if (!try_mulint( &x, x, ib )) ++ return 0; /* FP realm */ ++ } ++ *r= x; ++ } ++ return 1; ++} ++ ++int try_unmint( lua_Integer *r, lua_Integer ib ) { ++ /* Negating LUA_INTEGER_MIN leaves the range. */ ++ if ( ib != LUA_INTEGER_MIN ) ++ { *r= -ib; return 1; } ++ return 0; ++} ++ +Index: lua-5.1.4/src/lnum.h +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ lua-5.1.4/src/lnum.h 2008-08-24 16:48:20.000000000 +0200 +@@ -0,0 +1,116 @@ ++/* ++** $Id: lnum.h,v ... $ ++** Internal Number model ++** See Copyright Notice in lua.h ++*/ ++ ++#ifndef lnum_h ++#define lnum_h ++ ++#include <math.h> ++ ++#include "lobject.h" ++ ++/* ++** The luai_num* macros define the primitive operations over 'lua_Number's ++** (not 'lua_Integer's, not 'lua_Complex'). ++*/ ++#define luai_numadd(a,b) ((a)+(b)) ++#define luai_numsub(a,b) ((a)-(b)) ++#define luai_nummul(a,b) ((a)*(b)) ++#define luai_numdiv(a,b) ((a)/(b)) ++#define luai_nummod(a,b) ((a) - _LF(floor)((a)/(b))*(b)) ++#define luai_numpow(a,b) (_LF(pow)(a,b)) ++#define luai_numunm(a) (-(a)) ++#define luai_numeq(a,b) ((a)==(b)) ++#define luai_numlt(a,b) ((a)<(b)) ++#define luai_numle(a,b) ((a)<=(b)) ++#define luai_numisnan(a) (!luai_numeq((a), (a))) ++ ++int try_addint( lua_Integer *r, lua_Integer ib, lua_Integer ic ); ++int try_subint( lua_Integer *r, lua_Integer ib, lua_Integer ic ); ++int try_mulint( lua_Integer *r, lua_Integer ib, lua_Integer ic ); ++int try_divint( lua_Integer *r, lua_Integer ib, lua_Integer ic ); ++int try_modint( lua_Integer *r, lua_Integer ib, lua_Integer ic ); ++int try_powint( lua_Integer *r, lua_Integer ib, lua_Integer ic ); ++int try_unmint( lua_Integer *r, lua_Integer ib ); ++ ++#ifdef LNUM_COMPLEX ++ static inline lua_Complex luai_vectunm( lua_Complex a ) { return -a; } ++ static inline lua_Complex luai_vectadd( lua_Complex a, lua_Complex b ) { return a+b; } ++ static inline lua_Complex luai_vectsub( lua_Complex a, lua_Complex b ) { return a-b; } ++ static inline lua_Complex luai_vectmul( lua_Complex a, lua_Complex b ) { return a*b; } ++ static inline lua_Complex luai_vectdiv( lua_Complex a, lua_Complex b ) { return a/b; } ++ ++/* ++ * C99 does not provide modulus for complex numbers. It most likely is not ++ * meaningful at all. ++ */ ++ ++/* ++ * Complex power ++ * ++ * C99 'cpow' gives inaccurate results for many common cases s.a. (1i)^2 -> ++ * -1+1.2246467991474e-16i (OS X 10.4, gcc 4.0.1 build 5367) ++ * ++ * [(a+bi)^(c+di)] = (r^c) * exp(-d*t) * cos(c*t + d*ln(r)) + ++ * = (r^c) * exp(-d*t) * sin(c*t + d*ln(r)) *i ++ * r = sqrt(a^2+b^2), t = arctan( b/a ) ++ * ++ * Reference: <http://home.att.net/~srschmitt/complexnumbers.html> ++ * Could also be calculated using: x^y = exp(ln(x)*y) ++ * ++ * Note: Defined here (and not in .c) so 'lmathlib.c' can share the ++ * implementation. ++ */ ++ static inline ++ lua_Complex luai_vectpow( lua_Complex a, lua_Complex b ) ++ { ++# if 1 ++ lua_Number ar= _LF(creal)(a), ai= _LF(cimag)(a); ++ lua_Number br= _LF(creal)(b), bi= _LF(cimag)(b); ++ ++ if (ai==0 && bi==0) { /* a^c (real) */ ++ return luai_numpow( ar, br ); ++ } ++ ++ int br_int= (int)br; ++ ++ if ( ai!=0 && bi==0 && br_int==br && br_int!=0 && br_int!=INT_MIN ) { ++ /* (a+bi)^N, N = { +-1,+-2, ... +-INT_MAX } ++ */ ++ lua_Number k= luai_numpow( _LF(sqrt) (ar*ar + ai*ai), br ); ++ lua_Number cos_z, sin_z; ++ ++ /* Situation depends upon c (N) in the following manner: ++ * ++ * N%4==0 => cos(c*t)=1, sin(c*t)=0 ++ * (N*sign(b))%4==1 or (N*sign(b))%4==-3 => cos(c*t)=0, sin(c*t)=1 ++ * N%4==2 or N%4==-2 => cos(c*t)=-1, sin(c*t)=0 ++ * (N*sign(b))%4==-1 or (N*sign(b))%4==3 => cos(c*t)=0, sin(c*t)=-1 ++ */ ++ int br_int_abs = br_int<0 ? -br_int:br_int; ++ ++ switch( (br_int_abs%4) * (br_int<0 ? -1:1) * (ai<0 ? -1:1) ) { ++ case 0: cos_z=1, sin_z=0; break; ++ case 2: case -2: cos_z=-1, sin_z=0; break; ++ case 1: case -3: cos_z=0, sin_z=1; break; ++ case 3: case -1: cos_z=0, sin_z=-1; break; ++ default: lua_assert(0); return 0; ++ } ++ return k*cos_z + (k*sin_z)*I; ++ } ++# endif ++ return _LF(cpow) ( a, b ); ++ } ++#endif ++ ++LUAI_FUNC int luaO_str2d (const char *s, lua_Number *res1, lua_Integer *res2); ++LUAI_FUNC void luaO_num2buf( char *s, const TValue *o ); ++ ++LUAI_FUNC int /*bool*/ tt_integer_valued( const TValue *o, lua_Integer *ref ); ++ ++#define luai_normalize(o) \ ++{ lua_Integer _i; if (tt_integer_valued(o,&_i)) setivalue(o,_i); } ++ ++#endif +Index: lua-5.1.4/src/lnum_config.h +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ lua-5.1.4/src/lnum_config.h 2008-08-24 16:48:20.000000000 +0200 +@@ -0,0 +1,221 @@ ++/* ++** $Id: lnum_config.h,v ... $ ++** Internal Number model ++** See Copyright Notice in lua.h ++*/ ++ ++#ifndef lnum_config_h ++#define lnum_config_h ++ ++/* ++** Default number modes ++*/ ++#if (!defined LNUM_DOUBLE) && (!defined LNUM_FLOAT) && (!defined LNUM_LDOUBLE) ++# define LNUM_FLOAT ++#endif ++#if (!defined LNUM_INT16) && (!defined LNUM_INT32) && (!defined LNUM_INT64) ++# define LNUM_INT32 ++#endif ++ ++/* ++** Require C99 mode for COMPLEX, FLOAT and LDOUBLE (only DOUBLE is ANSI C). ++*/ ++#if defined(LNUM_COMPLEX) && (__STDC_VERSION__ < 199901L) ++# error "Need C99 for complex (use '--std=c99' or similar)" ++#elif defined(LNUM_LDOUBLE) && (__STDC_VERSION__ < 199901L) && !defined(_MSC_VER) ++# error "Need C99 for 'long double' (use '--std=c99' or similar)" ++#elif defined(LNUM_FLOAT) && (__STDC_VERSION__ < 199901L) ++/* LNUM_FLOAT not supported on Windows */ ++# error "Need C99 for 'float' (use '--std=c99' or similar)" ++#endif ++ ++/* ++** Number mode identifier to accompany the version string. ++*/ ++#ifdef LNUM_COMPLEX ++# define _LNUM1 "complex " ++#else ++# define _LNUM1 "" ++#endif ++#ifdef LNUM_DOUBLE ++# define _LNUM2 "double" ++#elif defined(LNUM_FLOAT) ++# define _LNUM2 "float" ++#elif defined(LNUM_LDOUBLE) ++# define _LNUM2 "ldouble" ++#endif ++#ifdef LNUM_INT32 ++# define _LNUM3 "int32" ++#elif defined(LNUM_INT64) ++# define _LNUM3 "int64" ++#elif defined(LNUM_INT16) ++# define _LNUM3 "int16" ++#endif ++#define LUA_LNUM _LNUM1 _LNUM2 " " _LNUM3 ++ ++/* ++** LUA_NUMBER is the type of floating point number in Lua ++** LUA_NUMBER_SCAN is the format for reading numbers. ++** LUA_NUMBER_FMT is the format for writing numbers. ++*/ ++#ifdef LNUM_FLOAT ++# define LUA_NUMBER float ++# define LUA_NUMBER_SCAN "%f" ++# define LUA_NUMBER_FMT "%g" ++#elif (defined LNUM_DOUBLE) ++# define LUA_NUMBER double ++# define LUA_NUMBER_SCAN "%lf" ++# define LUA_NUMBER_FMT "%.14g" ++#elif (defined LNUM_LDOUBLE) ++# define LUA_NUMBER long double ++# define LUA_NUMBER_SCAN "%Lg" ++# define LUA_NUMBER_FMT "%.20Lg" ++#endif ++ ++ ++/* ++** LUAI_MAXNUMBER2STR: size of a buffer fitting any number->string result. ++** ++** double: 24 (sign, x.xxxxxxxxxxxxxxe+nnnn, and \0) ++** int64: 21 (19 digits, sign, and \0) ++** long double: 43 for 128-bit (sign, x.xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxe+nnnn, and \0) ++** 30 for 80-bit (sign, x.xxxxxxxxxxxxxxxxxxxxe+nnnn, and \0) ++*/ ++#ifdef LNUM_LDOUBLE ++# define _LUAI_MN2S 44 ++#else ++# define _LUAI_MN2S 24 ++#endif ++ ++#ifdef LNUM_COMPLEX ++# define LUAI_MAXNUMBER2STR (2*_LUAI_MN2S) ++#else ++# define LUAI_MAXNUMBER2STR _LUAI_MN2S ++#endif ++ ++/* ++** LUA_INTEGER is the integer type used by lua_pushinteger/lua_tointeger/lua_isinteger. ++** LUA_INTEGER_SCAN is the format for reading integers ++** LUA_INTEGER_FMT is the format for writing integers ++** ++** Note: Visual C++ 2005 does not have 'strtoull()', use '_strtoui64()' instead. ++*/ ++#ifdef LNUM_INT32 ++# if LUAI_BITSINT > 16 ++# define LUA_INTEGER int ++# define LUA_INTEGER_SCAN "%d" ++# define LUA_INTEGER_FMT "%d" ++# else ++/* Note: 'LUA_INTEGER' being 'ptrdiff_t' (as in Lua 5.1) causes problems with ++ * 'printf()' operations. Also 'unsigned ptrdiff_t' is invalid. ++ */ ++# define LUA_INTEGER long ++# define LUA_INTEGER_SCAN "%ld" ++# define LUA_INTEGER_FMT "%ld" ++# endif ++# define LUA_INTEGER_MAX 0x7FFFFFFF /* 2^31-1 */ ++/* */ ++#elif defined(LNUM_INT64) ++# define LUA_INTEGER long long ++# ifdef _MSC_VER ++# define lua_str2ul _strtoui64 ++# else ++# define lua_str2ul strtoull ++# endif ++# define LUA_INTEGER_SCAN "%lld" ++# define LUA_INTEGER_FMT "%lld" ++# define LUA_INTEGER_MAX 0x7fffffffffffffffLL /* 2^63-1 */ ++# define LUA_INTEGER_MIN (-LUA_INTEGER_MAX - 1LL) /* -2^63 */ ++/* */ ++#elif defined(LNUM_INT16) ++# if LUAI_BITSINT > 16 ++# define LUA_INTEGER short ++# define LUA_INTEGER_SCAN "%hd" ++# define LUA_INTEGER_FMT "%hd" ++# else ++# define LUA_INTEGER int ++# define LUA_INTEGER_SCAN "%d" ++# define LUA_INTEGER_FMT "%d" ++# endif ++# define LUA_INTEGER_MAX 0x7FFF /* 2^16-1 */ ++#endif ++ ++#ifndef lua_str2ul ++# define lua_str2ul (unsigned LUA_INTEGER)strtoul ++#endif ++#ifndef LUA_INTEGER_MIN ++# define LUA_INTEGER_MIN (-LUA_INTEGER_MAX -1) /* -2^16|32 */ ++#endif ++ ++/* ++@@ lua_number2int is a macro to convert lua_Number to int. ++@@ lua_number2integer is a macro to convert lua_Number to lua_Integer. ++** CHANGE them if you know a faster way to convert a lua_Number to ++** int (with any rounding method and without throwing errors) in your ++** system. In Pentium machines, a naive typecast from double to int ++** in C is extremely slow, so any alternative is worth trying. ++*/ ++ ++/* On a Pentium, resort to a trick */ ++#if defined(LNUM_DOUBLE) && !defined(LUA_ANSI) && !defined(__SSE2__) && \ ++ (defined(__i386) || defined (_M_IX86) || defined(__i386__)) ++ ++/* On a Microsoft compiler, use assembler */ ++# if defined(_MSC_VER) ++# define lua_number2int(i,d) __asm fld d __asm fistp i ++# else ++ ++/* the next trick should work on any Pentium, but sometimes clashes ++ with a DirectX idiosyncrasy */ ++union luai_Cast { double l_d; long l_l; }; ++# define lua_number2int(i,d) \ ++ { volatile union luai_Cast u; u.l_d = (d) + 6755399441055744.0; (i) = u.l_l; } ++# endif ++ ++# ifndef LNUM_INT64 ++# define lua_number2integer lua_number2int ++# endif ++ ++/* this option always works, but may be slow */ ++#else ++# define lua_number2int(i,d) ((i)=(int)(d)) ++#endif ++ ++/* Note: Some compilers (OS X gcc 4.0?) may choke on double->long long conversion ++ * since it can lose precision. Others do require 'long long' there. ++ */ ++#ifndef lua_number2integer ++# define lua_number2integer(i,d) ((i)=(lua_Integer)(d)) ++#endif ++ ++/* ++** 'luai_abs()' to give absolute value of 'lua_Integer' ++*/ ++#ifdef LNUM_INT32 ++# define luai_abs abs ++#elif defined(LNUM_INT64) && (__STDC_VERSION__ >= 199901L) ++# define luai_abs llabs ++#else ++# define luai_abs(v) ((v) >= 0 ? (v) : -(v)) ++#endif ++ ++/* ++** LUAI_UACNUMBER is the result of an 'usual argument conversion' over a number. ++** LUAI_UACINTEGER the same, over an integer. ++*/ ++#define LUAI_UACNUMBER double ++#define LUAI_UACINTEGER long ++ ++/* ANSI C only has math funcs for 'double. C99 required for float and long double ++ * variants. ++ */ ++#ifdef LNUM_DOUBLE ++# define _LF(name) name ++#elif defined(LNUM_FLOAT) ++# define _LF(name) name ## f ++#elif defined(LNUM_LDOUBLE) ++# define _LF(name) name ## l ++#endif ++ ++#endif ++ +Index: lua-5.1.4/src/lobject.c +=================================================================== +--- lua-5.1.4.orig/src/lobject.c 2008-08-24 16:46:37.000000000 +0200 ++++ lua-5.1.4/src/lobject.c 2008-08-24 16:48:20.000000000 +0200 +@@ -21,7 +21,8 @@ + #include "lstate.h" + #include "lstring.h" + #include "lvm.h" +- ++#include "llex.h" ++#include "lnum.h" + + + const TValue luaO_nilobject_ = {{NULL}, LUA_TNIL}; +@@ -70,12 +71,31 @@ + + + int luaO_rawequalObj (const TValue *t1, const TValue *t2) { +- if (ttype(t1) != ttype(t2)) return 0; ++ if (!ttype_ext_same(t1,t2)) return 0; + else switch (ttype(t1)) { + case LUA_TNIL: + return 1; ++ case LUA_TINT: ++ if (ttype(t2)==LUA_TINT) ++ return ivalue(t1) == ivalue(t2); ++ else { /* t1:int, t2:num */ ++#ifdef LNUM_COMPLEX ++ if (nvalue_img_fast(t2) != 0) return 0; ++#endif ++ /* Avoid doing accuracy losing cast, if possible. */ ++ lua_Integer tmp; ++ if (tt_integer_valued(t2,&tmp)) ++ return ivalue(t1) == tmp; ++ else ++ return luai_numeq( cast_num(ivalue(t1)), nvalue_fast(t2) ); ++ } + case LUA_TNUMBER: +- return luai_numeq(nvalue(t1), nvalue(t2)); ++ if (ttype(t2)==LUA_TINT) ++ return luaO_rawequalObj(t2, t1); /* swap LUA_TINT to left */ ++#ifdef LNUM_COMPLEX ++ if (!luai_numeq(nvalue_img_fast(t1), nvalue_img_fast(t2))) return 0; ++#endif ++ return luai_numeq(nvalue_fast(t1), nvalue_fast(t2)); + case LUA_TBOOLEAN: + return bvalue(t1) == bvalue(t2); /* boolean true must be 1 !! */ + case LUA_TLIGHTUSERDATA: +@@ -86,21 +106,6 @@ + } + } + +- +-int luaO_str2d (const char *s, lua_Number *result) { +- char *endptr; +- *result = lua_str2number(s, &endptr); +- if (endptr == s) return 0; /* conversion failed */ +- if (*endptr == 'x' || *endptr == 'X') /* maybe an hexadecimal constant? */ +- *result = cast_num(strtoul(s, &endptr, 16)); +- if (*endptr == '\0') return 1; /* most common case */ +- while (isspace(cast(unsigned char, *endptr))) endptr++; +- if (*endptr != '\0') return 0; /* invalid trailing characters? */ +- return 1; +-} +- +- +- + static void pushstr (lua_State *L, const char *str) { + setsvalue2s(L, L->top, luaS_new(L, str)); + incr_top(L); +@@ -131,7 +136,11 @@ + break; + } + case 'd': { +- setnvalue(L->top, cast_num(va_arg(argp, int))); ++ /* This is tricky for 64-bit integers; maybe they even cannot be ++ * supported on all compilers; depends on the conversions applied to ++ * variable argument lists. TBD: test! ++ */ ++ setivalue(L->top, (lua_Integer) va_arg(argp, l_uacInteger)); + incr_top(L); + break; + } +@@ -212,3 +221,4 @@ + } + } + } ++ +Index: lua-5.1.4/src/lobject.h +=================================================================== +--- lua-5.1.4.orig/src/lobject.h 2008-08-24 16:46:37.000000000 +0200 ++++ lua-5.1.4/src/lobject.h 2008-08-24 16:48:20.000000000 +0200 +@@ -17,7 +17,11 @@ + + + /* tags for values visible from Lua */ +-#define LAST_TAG LUA_TTHREAD ++#if LUA_TINT > LUA_TTHREAD ++# define LAST_TAG LUA_TINT ++#else ++# define LAST_TAG LUA_TTHREAD ++#endif + + #define NUM_TAGS (LAST_TAG+1) + +@@ -59,7 +63,12 @@ + typedef union { + GCObject *gc; + void *p; ++#ifdef LNUM_COMPLEX ++ lua_Complex n; ++#else + lua_Number n; ++#endif ++ lua_Integer i; + int b; + } Value; + +@@ -77,7 +86,11 @@ + + /* Macros to test type */ + #define ttisnil(o) (ttype(o) == LUA_TNIL) +-#define ttisnumber(o) (ttype(o) == LUA_TNUMBER) ++#define ttisint(o) (ttype(o) == LUA_TINT) ++#define ttisnumber(o) ((ttype(o) == LUA_TINT) || (ttype(o) == LUA_TNUMBER)) ++#ifdef LNUM_COMPLEX ++# define ttiscomplex(o) ((ttype(o) == LUA_TNUMBER) && (nvalue_img_fast(o)!=0)) ++#endif + #define ttisstring(o) (ttype(o) == LUA_TSTRING) + #define ttistable(o) (ttype(o) == LUA_TTABLE) + #define ttisfunction(o) (ttype(o) == LUA_TFUNCTION) +@@ -90,7 +103,25 @@ + #define ttype(o) ((o)->tt) + #define gcvalue(o) check_exp(iscollectable(o), (o)->value.gc) + #define pvalue(o) check_exp(ttislightuserdata(o), (o)->value.p) +-#define nvalue(o) check_exp(ttisnumber(o), (o)->value.n) ++ ++#define ttype_ext(o) ( ttype(o) == LUA_TINT ? LUA_TNUMBER : ttype(o) ) ++#define ttype_ext_same(o1,o2) ( (ttype(o1)==ttype(o2)) || (ttisnumber(o1) && ttisnumber(o2)) ) ++ ++/* '_fast' variants are for cases where 'ttype(o)' is known to be LUA_TNUMBER. ++ */ ++#ifdef LNUM_COMPLEX ++# define nvalue_complex_fast(o) check_exp( ttype(o)==LUA_TNUMBER, (o)->value.n ) ++# define nvalue_fast(o) ( _LF(creal) ( nvalue_complex_fast(o) ) ) ++# define nvalue_img_fast(o) ( _LF(cimag) ( nvalue_complex_fast(o) ) ) ++# define nvalue_complex(o) check_exp( ttisnumber(o), (ttype(o)==LUA_TINT) ? (o)->value.i : (o)->value.n ) ++# define nvalue_img(o) check_exp( ttisnumber(o), (ttype(o)==LUA_TINT) ? 0 : _LF(cimag)( (o)->value.n ) ) ++# define nvalue(o) check_exp( ttisnumber(o), (ttype(o)==LUA_TINT) ? cast_num((o)->value.i) : _LF(creal)((o)->value.n) ) ++#else ++# define nvalue(o) check_exp( ttisnumber(o), (ttype(o)==LUA_TINT) ? cast_num((o)->value.i) : (o)->value.n ) ++# define nvalue_fast(o) check_exp( ttype(o)==LUA_TNUMBER, (o)->value.n ) ++#endif ++#define ivalue(o) check_exp( ttype(o)==LUA_TINT, (o)->value.i ) ++ + #define rawtsvalue(o) check_exp(ttisstring(o), &(o)->value.gc->ts) + #define tsvalue(o) (&rawtsvalue(o)->tsv) + #define rawuvalue(o) check_exp(ttisuserdata(o), &(o)->value.gc->u) +@@ -116,8 +147,27 @@ + /* Macros to set values */ + #define setnilvalue(obj) ((obj)->tt=LUA_TNIL) + +-#define setnvalue(obj,x) \ +- { TValue *i_o=(obj); i_o->value.n=(x); i_o->tt=LUA_TNUMBER; } ++/* Must not have side effects, 'x' may be expression. ++*/ ++#define setivalue(obj,x) \ ++ { TValue *i_o=(obj); i_o->value.i=(x); i_o->tt=LUA_TINT; } ++ ++# define setnvalue(obj,x) \ ++ { TValue *i_o=(obj); i_o->value.n= (x); i_o->tt=LUA_TNUMBER; } ++ ++/* Note: Complex always has "inline", both are C99. ++*/ ++#ifdef LNUM_COMPLEX ++ static inline void setnvalue_complex_fast( TValue *obj, lua_Complex x ) { ++ lua_assert( _LF(cimag)(x) != 0 ); ++ obj->value.n= x; obj->tt= LUA_TNUMBER; ++ } ++ static inline void setnvalue_complex( TValue *obj, lua_Complex x ) { ++ if (_LF(cimag)(x) == 0) { setnvalue(obj, _LF(creal)(x)); } ++ else { obj->value.n= x; obj->tt= LUA_TNUMBER; } ++ } ++#endif ++ + + #define setpvalue(obj,x) \ + { TValue *i_o=(obj); i_o->value.p=(x); i_o->tt=LUA_TLIGHTUSERDATA; } +@@ -155,9 +205,6 @@ + i_o->value.gc=cast(GCObject *, (x)); i_o->tt=LUA_TPROTO; \ + checkliveness(G(L),i_o); } + +- +- +- + #define setobj(L,obj1,obj2) \ + { const TValue *o2=(obj2); TValue *o1=(obj1); \ + o1->value = o2->value; o1->tt=o2->tt; \ +@@ -185,8 +232,11 @@ + + #define setttype(obj, tt) (ttype(obj) = (tt)) + +- +-#define iscollectable(o) (ttype(o) >= LUA_TSTRING) ++#if LUA_TINT >= LUA_TSTRING ++# define iscollectable(o) ((ttype(o) >= LUA_TSTRING) && (ttype(o) != LUA_TINT)) ++#else ++# define iscollectable(o) (ttype(o) >= LUA_TSTRING) ++#endif + + + +@@ -370,12 +420,10 @@ + LUAI_FUNC int luaO_int2fb (unsigned int x); + LUAI_FUNC int luaO_fb2int (int x); + LUAI_FUNC int luaO_rawequalObj (const TValue *t1, const TValue *t2); +-LUAI_FUNC int luaO_str2d (const char *s, lua_Number *result); + LUAI_FUNC const char *luaO_pushvfstring (lua_State *L, const char *fmt, + va_list argp); + LUAI_FUNC const char *luaO_pushfstring (lua_State *L, const char *fmt, ...); + LUAI_FUNC void luaO_chunkid (char *out, const char *source, size_t len); + +- + #endif + +Index: lua-5.1.4/src/loslib.c +=================================================================== +--- lua-5.1.4.orig/src/loslib.c 2008-08-24 16:46:37.000000000 +0200 ++++ lua-5.1.4/src/loslib.c 2008-08-24 16:48:20.000000000 +0200 +@@ -186,15 +186,30 @@ + } + if (t == (time_t)(-1)) + lua_pushnil(L); +- else +- lua_pushnumber(L, (lua_Number)t); ++ else { ++ /* On float systems the pushed value must be an integer, NOT a number. ++ * Otherwise, accuracy is lost in the time_t->float conversion. ++ */ ++#ifdef LNUM_FLOAT ++ lua_pushinteger(L, (lua_Integer) t); ++#else ++ lua_pushnumber(L, (lua_Number) t); ++#endif ++ } + return 1; + } + + + static int os_difftime (lua_State *L) { ++#ifdef LNUM_FLOAT ++ lua_Integer i= (lua_Integer) ++ difftime( (time_t)(luaL_checkinteger(L, 1)), ++ (time_t)(luaL_optinteger(L, 2, 0))); ++ lua_pushinteger(L, i); ++#else + lua_pushnumber(L, difftime((time_t)(luaL_checknumber(L, 1)), + (time_t)(luaL_optnumber(L, 2, 0)))); ++#endif + return 1; + } + +Index: lua-5.1.4/src/lparser.c +=================================================================== +--- lua-5.1.4.orig/src/lparser.c 2008-08-24 16:46:37.000000000 +0200 ++++ lua-5.1.4/src/lparser.c 2008-08-24 16:48:20.000000000 +0200 +@@ -33,7 +33,6 @@ + + #define luaY_checklimit(fs,v,l,m) if ((v)>(l)) errorlimit(fs,l,m) + +- + /* + ** nodes for block list (list of active blocks) + */ +@@ -72,7 +71,7 @@ + const char *msg = (fs->f->linedefined == 0) ? + luaO_pushfstring(fs->L, "main function has more than %d %s", limit, what) : + luaO_pushfstring(fs->L, "function at line %d has more than %d %s", +- fs->f->linedefined, limit, what); ++ (fs->f->linedefined), limit, what); + luaX_lexerror(fs->ls, msg, 0); + } + +@@ -733,6 +732,18 @@ + v->u.nval = ls->t.seminfo.r; + break; + } ++ case TK_INT: { ++ init_exp(v, VKINT, 0); ++ v->u.ival = ls->t.seminfo.i; ++ break; ++ } ++#ifdef LNUM_COMPLEX ++ case TK_NUMBER2: { ++ init_exp(v, VKNUM2, 0); ++ v->u.nval = ls->t.seminfo.r; ++ break; ++ } ++#endif + case TK_STRING: { + codestring(ls, v, ls->t.seminfo.ts); + break; +@@ -1079,7 +1090,7 @@ + if (testnext(ls, ',')) + exp1(ls); /* optional step */ + else { /* default step = 1 */ +- luaK_codeABx(fs, OP_LOADK, fs->freereg, luaK_numberK(fs, 1)); ++ luaK_codeABx(fs, OP_LOADK, fs->freereg, luaK_integerK(fs, 1)); + luaK_reserveregs(fs, 1); + } + forbody(ls, base, line, 1, 1); +Index: lua-5.1.4/src/lparser.h +=================================================================== +--- lua-5.1.4.orig/src/lparser.h 2008-08-24 16:46:37.000000000 +0200 ++++ lua-5.1.4/src/lparser.h 2008-08-24 16:48:20.000000000 +0200 +@@ -31,7 +31,11 @@ + VRELOCABLE, /* info = instruction pc */ + VNONRELOC, /* info = result register */ + VCALL, /* info = instruction pc */ +- VVARARG /* info = instruction pc */ ++ VVARARG, /* info = instruction pc */ ++ VKINT /* ival = integer value */ ++#ifdef LNUM_COMPLEX ++ ,VKNUM2 /* nval = imaginary value */ ++#endif + } expkind; + + typedef struct expdesc { +@@ -39,6 +43,7 @@ + union { + struct { int info, aux; } s; + lua_Number nval; ++ lua_Integer ival; + } u; + int t; /* patch list of `exit when true' */ + int f; /* patch list of `exit when false' */ +Index: lua-5.1.4/src/lstrlib.c +=================================================================== +--- lua-5.1.4.orig/src/lstrlib.c 2008-08-24 16:46:37.000000000 +0200 ++++ lua-5.1.4/src/lstrlib.c 2008-08-24 16:48:20.000000000 +0200 +@@ -43,8 +43,8 @@ + static int str_sub (lua_State *L) { + size_t l; + const char *s = luaL_checklstring(L, 1, &l); +- ptrdiff_t start = posrelat(luaL_checkinteger(L, 2), l); +- ptrdiff_t end = posrelat(luaL_optinteger(L, 3, -1), l); ++ ptrdiff_t start = posrelat(luaL_checkint32(L, 2), l); ++ ptrdiff_t end = posrelat(luaL_optint32(L, 3, -1), l); + if (start < 1) start = 1; + if (end > (ptrdiff_t)l) end = (ptrdiff_t)l; + if (start <= end) +@@ -106,8 +106,8 @@ + static int str_byte (lua_State *L) { + size_t l; + const char *s = luaL_checklstring(L, 1, &l); +- ptrdiff_t posi = posrelat(luaL_optinteger(L, 2, 1), l); +- ptrdiff_t pose = posrelat(luaL_optinteger(L, 3, posi), l); ++ ptrdiff_t posi = posrelat(luaL_optint32(L, 2, 1), l); ++ ptrdiff_t pose = posrelat(luaL_optint32(L, 3, posi), l); + int n, i; + if (posi <= 0) posi = 1; + if ((size_t)pose > l) pose = l; +@@ -496,7 +496,7 @@ + size_t l1, l2; + const char *s = luaL_checklstring(L, 1, &l1); + const char *p = luaL_checklstring(L, 2, &l2); +- ptrdiff_t init = posrelat(luaL_optinteger(L, 3, 1), l1) - 1; ++ ptrdiff_t init = posrelat(luaL_optint32(L, 3, 1), l1) - 1; + if (init < 0) init = 0; + else if ((size_t)(init) > l1) init = (ptrdiff_t)l1; + if (find && (lua_toboolean(L, 4) || /* explicit request? */ +@@ -690,7 +690,7 @@ + ** maximum size of each format specification (such as '%-099.99d') + ** (+10 accounts for %99.99x plus margin of error) + */ +-#define MAX_FORMAT (sizeof(FLAGS) + sizeof(LUA_INTFRMLEN) + 10) ++#define MAX_FORMAT (sizeof(FLAGS) + sizeof(LUA_INTEGER_FMT)-2 + 10) + + + static void addquoted (lua_State *L, luaL_Buffer *b, int arg) { +@@ -747,9 +747,9 @@ + static void addintlen (char *form) { + size_t l = strlen(form); + char spec = form[l - 1]; +- strcpy(form + l - 1, LUA_INTFRMLEN); +- form[l + sizeof(LUA_INTFRMLEN) - 2] = spec; +- form[l + sizeof(LUA_INTFRMLEN) - 1] = '\0'; ++ const char *tmp= LUA_INTEGER_FMT; /* "%lld" or "%ld" */ ++ strcpy(form + l - 1, tmp+1); ++ form[l + sizeof(LUA_INTEGER_FMT)-4] = spec; + } + + +@@ -777,12 +777,12 @@ + } + case 'd': case 'i': { + addintlen(form); +- sprintf(buff, form, (LUA_INTFRM_T)luaL_checknumber(L, arg)); ++ sprintf(buff, form, luaL_checkinteger(L, arg)); + break; + } + case 'o': case 'u': case 'x': case 'X': { + addintlen(form); +- sprintf(buff, form, (unsigned LUA_INTFRM_T)luaL_checknumber(L, arg)); ++ sprintf(buff, form, (unsigned LUA_INTEGER)luaL_checkinteger(L, arg)); + break; + } + case 'e': case 'E': case 'f': +Index: lua-5.1.4/src/ltable.c +=================================================================== +--- lua-5.1.4.orig/src/ltable.c 2008-08-24 16:46:37.000000000 +0200 ++++ lua-5.1.4/src/ltable.c 2008-08-24 16:48:20.000000000 +0200 +@@ -33,6 +33,7 @@ + #include "lobject.h" + #include "lstate.h" + #include "ltable.h" ++#include "lnum.h" + + + /* +@@ -51,25 +52,15 @@ + + #define hashstr(t,str) hashpow2(t, (str)->tsv.hash) + #define hashboolean(t,p) hashpow2(t, p) +- ++#define hashint(t,i) hashpow2(t,i) + + /* + ** for some types, it is better to avoid modulus by power of 2, as + ** they tend to have many 2 factors. + */ + #define hashmod(t,n) (gnode(t, ((n) % ((sizenode(t)-1)|1)))) +- +- + #define hashpointer(t,p) hashmod(t, IntPoint(p)) + +- +-/* +-** number of ints inside a lua_Number +-*/ +-#define numints cast_int(sizeof(lua_Number)/sizeof(int)) +- +- +- + #define dummynode (&dummynode_) + + static const Node dummynode_ = { +@@ -80,27 +71,46 @@ + + /* + ** hash for lua_Numbers ++** ++** for non-complex modes, never called with 'lua_Integer' value range (s.a. 0) + */ + static Node *hashnum (const Table *t, lua_Number n) { +- unsigned int a[numints]; +- int i; +- if (luai_numeq(n, 0)) /* avoid problems with -0 */ +- return gnode(t, 0); +- memcpy(a, &n, sizeof(a)); +- for (i = 1; i < numints; i++) a[0] += a[i]; +- return hashmod(t, a[0]); ++ const unsigned int *p= cast(const unsigned int *,&n); ++ unsigned int sum= *p; ++ unsigned int m= sizeof(lua_Number)/sizeof(int); ++ unsigned int i; ++ /* OS X Intel has 'm'==4 and gives "Bus error" if the last integer of ++ * 'n' is read; the actual size of long double is only 80 bits = 10 bytes. ++ * Linux x86 has 'm'==3, and does not require reduction. ++ */ ++#if defined(LNUM_LDOUBLE) && defined(__i386__) ++ if (m>3) m--; ++#endif ++ for (i = 1; i < m; i++) sum += p[i]; ++ return hashmod(t, sum); + } + + +- + /* + ** returns the `main' position of an element in a table (that is, the index + ** of its hash value) ++** ++** Floating point numbers with integer value give the hash position of the ++** integer (so they use the same table position). + */ + static Node *mainposition (const Table *t, const TValue *key) { ++ lua_Integer i; + switch (ttype(key)) { + case LUA_TNUMBER: +- return hashnum(t, nvalue(key)); ++ if (tt_integer_valued(key,&i)) ++ return hashint(t, i); ++#ifdef LNUM_COMPLEX ++ if (nvalue_img_fast(key)!=0 && luai_numeq(nvalue_fast(key),0)) ++ return gnode(t, 0); /* 0 and -0 to give same hash */ ++#endif ++ return hashnum(t, nvalue_fast(key)); ++ case LUA_TINT: ++ return hashint(t, ivalue(key)); + case LUA_TSTRING: + return hashstr(t, rawtsvalue(key)); + case LUA_TBOOLEAN: +@@ -116,16 +126,20 @@ + /* + ** returns the index for `key' if `key' is an appropriate key to live in + ** the array part of the table, -1 otherwise. ++** ++** Anything <=0 is taken as not being in the array part. + */ +-static int arrayindex (const TValue *key) { +- if (ttisnumber(key)) { +- lua_Number n = nvalue(key); +- int k; +- lua_number2int(k, n); +- if (luai_numeq(cast_num(k), n)) +- return k; ++static int arrayindex (const TValue *key, int max) { ++ lua_Integer k; ++ switch( ttype(key) ) { ++ case LUA_TINT: ++ k= ivalue(key); break; ++ case LUA_TNUMBER: ++ if (tt_integer_valued(key,&k)) break; ++ default: ++ return -1; /* not to be used as array index */ + } +- return -1; /* `key' did not match some condition */ ++ return ((k>0) && (k <= max)) ? cast_int(k) : -1; + } + + +@@ -137,8 +151,8 @@ + static int findindex (lua_State *L, Table *t, StkId key) { + int i; + if (ttisnil(key)) return -1; /* first iteration */ +- i = arrayindex(key); +- if (0 < i && i <= t->sizearray) /* is `key' inside array part? */ ++ i = arrayindex(key, t->sizearray); ++ if (i>0) /* inside array part? */ + return i-1; /* yes; that's the index (corrected to C) */ + else { + Node *n = mainposition(t, key); +@@ -163,7 +177,7 @@ + int i = findindex(L, t, key); /* find original element */ + for (i++; i < t->sizearray; i++) { /* try first array part */ + if (!ttisnil(&t->array[i])) { /* a non-nil value? */ +- setnvalue(key, cast_num(i+1)); ++ setivalue(key, i+1); + setobj2s(L, key+1, &t->array[i]); + return 1; + } +@@ -209,8 +223,8 @@ + + + static int countint (const TValue *key, int *nums) { +- int k = arrayindex(key); +- if (0 < k && k <= MAXASIZE) { /* is `key' an appropriate array index? */ ++ int k = arrayindex(key,MAXASIZE); ++ if (k>0) { /* appropriate array index? */ + nums[ceillog2(k)]++; /* count as such */ + return 1; + } +@@ -308,7 +322,7 @@ + /* re-insert elements from vanishing slice */ + for (i=nasize; i<oldasize; i++) { + if (!ttisnil(&t->array[i])) +- setobjt2t(L, luaH_setnum(L, t, i+1), &t->array[i]); ++ setobjt2t(L, luaH_setint(L, t, i+1), &t->array[i]); + } + /* shrink array */ + luaM_reallocvector(L, t->array, oldasize, nasize, TValue); +@@ -409,7 +423,9 @@ + othern = mainposition(t, key2tval(mp)); + if (othern != mp) { /* is colliding node out of its main position? */ + /* yes; move colliding node into free position */ +- while (gnext(othern) != mp) othern = gnext(othern); /* find previous */ ++ while (gnext(othern) != mp) { ++ othern = gnext(othern); /* find previous */ ++ } + gnext(othern) = n; /* redo the chain with `n' in place of `mp' */ + *n = *mp; /* copy colliding node into free pos. (mp->next also goes) */ + gnext(mp) = NULL; /* now `mp' is free */ +@@ -432,17 +448,18 @@ + /* + ** search function for integers + */ +-const TValue *luaH_getnum (Table *t, int key) { ++const TValue *luaH_getint (Table *t, lua_Integer key) { + /* (1 <= key && key <= t->sizearray) */ + if (cast(unsigned int, key-1) < cast(unsigned int, t->sizearray)) + return &t->array[key-1]; + else { +- lua_Number nk = cast_num(key); +- Node *n = hashnum(t, nk); ++ Node *n = hashint(t, key); + do { /* check whether `key' is somewhere in the chain */ +- if (ttisnumber(gkey(n)) && luai_numeq(nvalue(gkey(n)), nk)) ++ if (ttisint(gkey(n)) && (ivalue(gkey(n)) == key)) { + return gval(n); /* that's it */ +- else n = gnext(n); ++ } else { ++ n = gnext(n); ++ } + } while (n); + return luaO_nilobject; + } +@@ -470,14 +487,12 @@ + switch (ttype(key)) { + case LUA_TNIL: return luaO_nilobject; + case LUA_TSTRING: return luaH_getstr(t, rawtsvalue(key)); ++ case LUA_TINT: return luaH_getint(t, ivalue(key)); + case LUA_TNUMBER: { +- int k; +- lua_Number n = nvalue(key); +- lua_number2int(k, n); +- if (luai_numeq(cast_num(k), nvalue(key))) /* index is int? */ +- return luaH_getnum(t, k); /* use specialized version */ +- /* else go through */ +- } ++ lua_Integer i; ++ if (tt_integer_valued(key,&i)) ++ return luaH_getint(t,i); ++ } /* pass through */ + default: { + Node *n = mainposition(t, key); + do { /* check whether `key' is somewhere in the chain */ +@@ -498,20 +513,25 @@ + return cast(TValue *, p); + else { + if (ttisnil(key)) luaG_runerror(L, "table index is nil"); +- else if (ttisnumber(key) && luai_numisnan(nvalue(key))) +- luaG_runerror(L, "table index is NaN"); ++ else if (ttype(key)==LUA_TNUMBER) { ++ lua_Integer k; ++ if (luai_numisnan(nvalue_fast(key))) ++ luaG_runerror(L, "table index is NaN"); ++ if (tt_integer_valued(key,&k)) ++ return luaH_setint(L, t, k); ++ } + return newkey(L, t, key); + } + } + + +-TValue *luaH_setnum (lua_State *L, Table *t, int key) { +- const TValue *p = luaH_getnum(t, key); ++TValue *luaH_setint (lua_State *L, Table *t, lua_Integer key) { ++ const TValue *p = luaH_getint(t, key); + if (p != luaO_nilobject) + return cast(TValue *, p); + else { + TValue k; +- setnvalue(&k, cast_num(key)); ++ setivalue(&k, key); + return newkey(L, t, &k); + } + } +@@ -533,20 +553,21 @@ + unsigned int i = j; /* i is zero or a present index */ + j++; + /* find `i' and `j' such that i is present and j is not */ +- while (!ttisnil(luaH_getnum(t, j))) { ++ while (!ttisnil(luaH_getint(t, j))) { + i = j; + j *= 2; + if (j > cast(unsigned int, MAX_INT)) { /* overflow? */ + /* table was built with bad purposes: resort to linear search */ +- i = 1; +- while (!ttisnil(luaH_getnum(t, i))) i++; +- return i - 1; ++ for( i = 1; i<MAX_INT+1; i++ ) { ++ if (ttisnil(luaH_getint(t, i))) break; ++ } ++ return i - 1; /* up to MAX_INT */ + } + } + /* now do a binary search between them */ + while (j - i > 1) { + unsigned int m = (i+j)/2; +- if (ttisnil(luaH_getnum(t, m))) j = m; ++ if (ttisnil(luaH_getint(t, m))) j = m; + else i = m; + } + return i; +Index: lua-5.1.4/src/ltable.h +=================================================================== +--- lua-5.1.4.orig/src/ltable.h 2008-08-24 16:46:37.000000000 +0200 ++++ lua-5.1.4/src/ltable.h 2008-08-24 16:48:20.000000000 +0200 +@@ -18,8 +18,8 @@ + #define key2tval(n) (&(n)->i_key.tvk) + + +-LUAI_FUNC const TValue *luaH_getnum (Table *t, int key); +-LUAI_FUNC TValue *luaH_setnum (lua_State *L, Table *t, int key); ++LUAI_FUNC const TValue *luaH_getint (Table *t, lua_Integer key); ++LUAI_FUNC TValue *luaH_setint (lua_State *L, Table *t, lua_Integer key); + LUAI_FUNC const TValue *luaH_getstr (Table *t, TString *key); + LUAI_FUNC TValue *luaH_setstr (lua_State *L, Table *t, TString *key); + LUAI_FUNC const TValue *luaH_get (Table *t, const TValue *key); +Index: lua-5.1.4/src/ltm.c +=================================================================== +--- lua-5.1.4.orig/src/ltm.c 2008-08-24 16:46:38.000000000 +0200 ++++ lua-5.1.4/src/ltm.c 2008-08-24 16:48:20.000000000 +0200 +@@ -19,7 +19,6 @@ + #include "ltm.h" + + +- + const char *const luaT_typenames[] = { + "nil", "boolean", "userdata", "number", + "string", "table", "function", "userdata", "thread", +@@ -67,6 +66,9 @@ + case LUA_TUSERDATA: + mt = uvalue(o)->metatable; + break; ++ case LUA_TINT: ++ mt = G(L)->mt[LUA_TNUMBER]; ++ break; + default: + mt = G(L)->mt[ttype(o)]; + } +Index: lua-5.1.4/src/lua.c +=================================================================== +--- lua-5.1.4.orig/src/lua.c 2008-08-24 16:46:38.000000000 +0200 ++++ lua-5.1.4/src/lua.c 2008-08-24 16:48:20.000000000 +0200 +@@ -16,7 +16,7 @@ + + #include "lauxlib.h" + #include "lualib.h" +- ++#include "llimits.h" + + + static lua_State *globalL = NULL; +@@ -382,6 +382,15 @@ + l_message(argv[0], "cannot create state: not enough memory"); + return EXIT_FAILURE; + } ++ /* Checking 'sizeof(lua_Integer)' cannot be made in preprocessor on all compilers. ++ */ ++#ifdef LNUM_INT16 ++ lua_assert( sizeof(lua_Integer) == 2 ); ++#elif defined(LNUM_INT32) ++ lua_assert( sizeof(lua_Integer) == 4 ); ++#elif defined(LNUM_INT64) ++ lua_assert( sizeof(lua_Integer) == 8 ); ++#endif + s.argc = argc; + s.argv = argv; + status = lua_cpcall(L, &pmain, &s); +Index: lua-5.1.4/src/lua.h +=================================================================== +--- lua-5.1.4.orig/src/lua.h 2008-08-24 16:46:38.000000000 +0200 ++++ lua-5.1.4/src/lua.h 2008-08-24 16:48:20.000000000 +0200 +@@ -19,7 +19,7 @@ + #define LUA_VERSION "Lua 5.1" + #define LUA_RELEASE "Lua 5.1.4" + #define LUA_VERSION_NUM 501 +-#define LUA_COPYRIGHT "Copyright (C) 1994-2008 Lua.org, PUC-Rio" ++#define LUA_COPYRIGHT "Copyright (C) 1994-2008 Lua.org, PUC-Rio" " (" LUA_LNUM ")" + #define LUA_AUTHORS "R. Ierusalimschy, L. H. de Figueiredo & W. Celes" + + +@@ -71,6 +71,16 @@ + */ + #define LUA_TNONE (-1) + ++/* LUA_TINT is an internal type, not visible to applications. There are three ++ * potential values where it can be tweaked to (code autoadjusts to these): ++ * ++ * -2: not 'usual' type value; good since 'LUA_TINT' is not part of the API ++ * LUA_TNUMBER+1: shifts other type values upwards, breaking binary compatibility ++ * not acceptable for 5.1, maybe 5.2 onwards? ++ * 9: greater than existing (5.1) type values. ++*/ ++#define LUA_TINT (-2) ++ + #define LUA_TNIL 0 + #define LUA_TBOOLEAN 1 + #define LUA_TLIGHTUSERDATA 2 +@@ -139,6 +149,8 @@ + LUA_API int (lua_type) (lua_State *L, int idx); + LUA_API const char *(lua_typename) (lua_State *L, int tp); + ++LUA_API int (lua_isinteger) (lua_State *L, int idx); ++ + LUA_API int (lua_equal) (lua_State *L, int idx1, int idx2); + LUA_API int (lua_rawequal) (lua_State *L, int idx1, int idx2); + LUA_API int (lua_lessthan) (lua_State *L, int idx1, int idx2); +@@ -244,6 +256,19 @@ + LUA_API void lua_setallocf (lua_State *L, lua_Alloc f, void *ud); + + ++/* ++* It is unnecessary to break Lua C API 'lua_tonumber()' compatibility, just ++* because the Lua number type is complex. Most C modules would use scalars ++* only. We'll introduce new 'lua_tocomplex' and 'lua_pushcomplex' for when ++* the module really wants to use them. ++*/ ++#ifdef LNUM_COMPLEX ++ #include <complex.h> ++ typedef LUA_NUMBER complex lua_Complex; ++ LUA_API lua_Complex (lua_tocomplex) (lua_State *L, int idx); ++ LUA_API void (lua_pushcomplex) (lua_State *L, lua_Complex v); ++#endif ++ + + /* + ** =============================================================== +@@ -268,7 +293,12 @@ + #define lua_isboolean(L,n) (lua_type(L, (n)) == LUA_TBOOLEAN) + #define lua_isthread(L,n) (lua_type(L, (n)) == LUA_TTHREAD) + #define lua_isnone(L,n) (lua_type(L, (n)) == LUA_TNONE) +-#define lua_isnoneornil(L, n) (lua_type(L, (n)) <= 0) ++ ++#if LUA_TINT < 0 ++# define lua_isnoneornil(L, n) ( (lua_type(L,(n)) <= 0) && (lua_type(L,(n)) != LUA_TINT) ) ++#else ++# define lua_isnoneornil(L, n) (lua_type(L, (n)) <= 0) ++#endif + + #define lua_pushliteral(L, s) \ + lua_pushlstring(L, "" s, (sizeof(s)/sizeof(char))-1) +@@ -386,3 +416,4 @@ + + + #endif ++ +Index: lua-5.1.4/src/luaconf.h +=================================================================== +--- lua-5.1.4.orig/src/luaconf.h 2008-08-24 16:46:38.000000000 +0200 ++++ lua-5.1.4/src/luaconf.h 2008-08-24 16:48:20.000000000 +0200 +@@ -10,7 +10,9 @@ + + #include <limits.h> + #include <stddef.h> +- ++#ifdef lua_assert ++# include <assert.h> ++#endif + + /* + ** ================================================================== +@@ -136,14 +138,38 @@ + + + /* +-@@ LUA_INTEGER is the integral type used by lua_pushinteger/lua_tointeger. +-** CHANGE that if ptrdiff_t is not adequate on your machine. (On most +-** machines, ptrdiff_t gives a good choice between int or long.) ++@@ LUAI_BITSINT defines the number of bits in an int. ++** CHANGE here if Lua cannot automatically detect the number of bits of ++** your machine. Probably you do not need to change this. + */ +-#define LUA_INTEGER ptrdiff_t ++/* avoid overflows in comparison */ ++#if INT_MAX-20 < 32760 ++#define LUAI_BITSINT 16 ++#elif INT_MAX > 2147483640L ++/* int has at least 32 bits */ ++#define LUAI_BITSINT 32 ++#else ++#error "you must define LUA_BITSINT with number of bits in an integer" ++#endif + + + /* ++@@ LNUM_DOUBLE | LNUM_FLOAT | LNUM_LDOUBLE: Generic Lua number mode ++@@ LNUM_INT32 | LNUM_INT64: Integer type ++@@ LNUM_COMPLEX: Define for using 'a+bi' numbers ++@@ ++@@ You can combine LNUM_xxx but only one of each group. I.e. '-DLNUM_FLOAT ++@@ -DLNUM_INT32 -DLNUM_COMPLEX' gives float range complex numbers, with ++@@ 32-bit scalar integer range optimized. ++** ++** These are kept in a separate configuration file mainly for ease of patching ++** (can be changed if integerated to Lua proper). ++*/ ++/*#define LNUM_DOUBLE*/ ++/*#define LNUM_INT32*/ ++#include "lnum_config.h" ++ ++/* + @@ LUA_API is a mark for all core API functions. + @@ LUALIB_API is a mark for all standard library functions. + ** CHANGE them if you need to define those functions in some special way. +@@ -383,22 +409,6 @@ + + + /* +-@@ LUAI_BITSINT defines the number of bits in an int. +-** CHANGE here if Lua cannot automatically detect the number of bits of +-** your machine. Probably you do not need to change this. +-*/ +-/* avoid overflows in comparison */ +-#if INT_MAX-20 < 32760 +-#define LUAI_BITSINT 16 +-#elif INT_MAX > 2147483640L +-/* int has at least 32 bits */ +-#define LUAI_BITSINT 32 +-#else +-#error "you must define LUA_BITSINT with number of bits in an integer" +-#endif +- +- +-/* + @@ LUAI_UINT32 is an unsigned integer with at least 32 bits. + @@ LUAI_INT32 is an signed integer with at least 32 bits. + @@ LUAI_UMEM is an unsigned integer big enough to count the total +@@ -425,6 +435,15 @@ + #define LUAI_MEM long + #endif + ++/* ++@@ LUAI_BOOL carries 0 and nonzero (normally 1). It may be defined as 'char' ++** (to save memory), 'int' (for speed), 'bool' (for C++) or '_Bool' (C99) ++*/ ++#ifdef __cplusplus ++# define LUAI_BOOL bool ++#else ++# define LUAI_BOOL int ++#endif + + /* + @@ LUAI_MAXCALLS limits the number of nested calls. +@@ -490,101 +509,6 @@ + /* }================================================================== */ + + +- +- +-/* +-** {================================================================== +-@@ LUA_NUMBER is the type of numbers in Lua. +-** CHANGE the following definitions only if you want to build Lua +-** with a number type different from double. You may also need to +-** change lua_number2int & lua_number2integer. +-** =================================================================== +-*/ +- +-#define LUA_NUMBER_DOUBLE +-#define LUA_NUMBER double +- +-/* +-@@ LUAI_UACNUMBER is the result of an 'usual argument conversion' +-@* over a number. +-*/ +-#define LUAI_UACNUMBER double +- +- +-/* +-@@ LUA_NUMBER_SCAN is the format for reading numbers. +-@@ LUA_NUMBER_FMT is the format for writing numbers. +-@@ lua_number2str converts a number to a string. +-@@ LUAI_MAXNUMBER2STR is maximum size of previous conversion. +-@@ lua_str2number converts a string to a number. +-*/ +-#define LUA_NUMBER_SCAN "%lf" +-#define LUA_NUMBER_FMT "%.14g" +-#define lua_number2str(s,n) sprintf((s), LUA_NUMBER_FMT, (n)) +-#define LUAI_MAXNUMBER2STR 32 /* 16 digits, sign, point, and \0 */ +-#define lua_str2number(s,p) strtod((s), (p)) +- +- +-/* +-@@ The luai_num* macros define the primitive operations over numbers. +-*/ +-#if defined(LUA_CORE) +-#include <math.h> +-#define luai_numadd(a,b) ((a)+(b)) +-#define luai_numsub(a,b) ((a)-(b)) +-#define luai_nummul(a,b) ((a)*(b)) +-#define luai_numdiv(a,b) ((a)/(b)) +-#define luai_nummod(a,b) ((a) - floor((a)/(b))*(b)) +-#define luai_numpow(a,b) (pow(a,b)) +-#define luai_numunm(a) (-(a)) +-#define luai_numeq(a,b) ((a)==(b)) +-#define luai_numlt(a,b) ((a)<(b)) +-#define luai_numle(a,b) ((a)<=(b)) +-#define luai_numisnan(a) (!luai_numeq((a), (a))) +-#endif +- +- +-/* +-@@ lua_number2int is a macro to convert lua_Number to int. +-@@ lua_number2integer is a macro to convert lua_Number to lua_Integer. +-** CHANGE them if you know a faster way to convert a lua_Number to +-** int (with any rounding method and without throwing errors) in your +-** system. In Pentium machines, a naive typecast from double to int +-** in C is extremely slow, so any alternative is worth trying. +-*/ +- +-/* On a Pentium, resort to a trick */ +-#if defined(LUA_NUMBER_DOUBLE) && !defined(LUA_ANSI) && !defined(__SSE2__) && \ +- (defined(__i386) || defined (_M_IX86) || defined(__i386__)) +- +-/* On a Microsoft compiler, use assembler */ +-#if defined(_MSC_VER) +- +-#define lua_number2int(i,d) __asm fld d __asm fistp i +-#define lua_number2integer(i,n) lua_number2int(i, n) +- +-/* the next trick should work on any Pentium, but sometimes clashes +- with a DirectX idiosyncrasy */ +-#else +- +-union luai_Cast { double l_d; long l_l; }; +-#define lua_number2int(i,d) \ +- { volatile union luai_Cast u; u.l_d = (d) + 6755399441055744.0; (i) = u.l_l; } +-#define lua_number2integer(i,n) lua_number2int(i, n) +- +-#endif +- +- +-/* this option always works, but may be slow */ +-#else +-#define lua_number2int(i,d) ((i)=(int)(d)) +-#define lua_number2integer(i,d) ((i)=(lua_Integer)(d)) +- +-#endif +- +-/* }================================================================== */ +- +- + /* + @@ LUAI_USER_ALIGNMENT_T is a type that requires maximum alignment. + ** CHANGE it if your system requires alignments larger than double. (For +@@ -728,28 +652,6 @@ + #define luai_userstateyield(L,n) ((void)L) + + +-/* +-@@ LUA_INTFRMLEN is the length modifier for integer conversions +-@* in 'string.format'. +-@@ LUA_INTFRM_T is the integer type correspoding to the previous length +-@* modifier. +-** CHANGE them if your system supports long long or does not support long. +-*/ +- +-#if defined(LUA_USELONGLONG) +- +-#define LUA_INTFRMLEN "ll" +-#define LUA_INTFRM_T long long +- +-#else +- +-#define LUA_INTFRMLEN "l" +-#define LUA_INTFRM_T long +- +-#endif +- +- +- + /* =================================================================== */ + + /* +Index: lua-5.1.4/src/lundump.c +=================================================================== +--- lua-5.1.4.orig/src/lundump.c 2008-08-24 16:46:38.000000000 +0200 ++++ lua-5.1.4/src/lundump.c 2008-08-24 16:48:20.000000000 +0200 +@@ -73,6 +73,13 @@ + return x; + } + ++static lua_Integer LoadInteger(LoadState* S) ++{ ++ lua_Integer x; ++ LoadVar(S,x); ++ return x; ++} ++ + static TString* LoadString(LoadState* S) + { + size_t size; +@@ -119,6 +126,9 @@ + case LUA_TNUMBER: + setnvalue(o,LoadNumber(S)); + break; ++ case LUA_TINT: /* Integer type saved in bytecode (see lcode.c) */ ++ setivalue(o,LoadInteger(S)); ++ break; + case LUA_TSTRING: + setsvalue2n(S->L,o,LoadString(S)); + break; +@@ -223,5 +233,22 @@ + *h++=(char)sizeof(size_t); + *h++=(char)sizeof(Instruction); + *h++=(char)sizeof(lua_Number); +- *h++=(char)(((lua_Number)0.5)==0); /* is lua_Number integral? */ ++ ++ /* ++ * Last byte of header (0/1 in unpatched Lua 5.1.3): ++ * ++ * 0: lua_Number is float or double, lua_Integer not used. (nonpatched only) ++ * 1: lua_Number is integer (nonpatched only) ++ * ++ * +2: LNUM_INT16: sizeof(lua_Integer) ++ * +4: LNUM_INT32: sizeof(lua_Integer) ++ * +8: LNUM_INT64: sizeof(lua_Integer) ++ * ++ * +0x80: LNUM_COMPLEX ++ */ ++ *h++ = (char)(sizeof(lua_Integer) ++#ifdef LNUM_COMPLEX ++ | 0x80 ++#endif ++ ); + } +Index: lua-5.1.4/src/lvm.c +=================================================================== +--- lua-5.1.4.orig/src/lvm.c 2008-08-24 16:46:38.000000000 +0200 ++++ lua-5.1.4/src/lvm.c 2008-08-24 16:48:20.000000000 +0200 +@@ -25,22 +25,35 @@ + #include "ltable.h" + #include "ltm.h" + #include "lvm.h" +- +- ++#include "llex.h" ++#include "lnum.h" + + /* limit for table tag-method chains (to avoid loops) */ + #define MAXTAGLOOP 100 + + +-const TValue *luaV_tonumber (const TValue *obj, TValue *n) { +- lua_Number num; ++/* ++ * If 'obj' is a string, it is tried to be interpreted as a number. ++ */ ++const TValue *luaV_tonumber ( const TValue *obj, TValue *n) { ++ lua_Number d; ++ lua_Integer i; ++ + if (ttisnumber(obj)) return obj; +- if (ttisstring(obj) && luaO_str2d(svalue(obj), &num)) { +- setnvalue(n, num); +- return n; +- } +- else +- return NULL; ++ ++ if (ttisstring(obj)) { ++ switch( luaO_str2d( svalue(obj), &d, &i ) ) { ++ case TK_INT: ++ setivalue(n,i); return n; ++ case TK_NUMBER: ++ setnvalue(n,d); return n; ++#ifdef LNUM_COMPLEX ++ case TK_NUMBER2: /* "N.NNNi", != 0 */ ++ setnvalue_complex_fast(n, d*I); return n; ++#endif ++ } ++ } ++ return NULL; + } + + +@@ -49,8 +62,7 @@ + return 0; + else { + char s[LUAI_MAXNUMBER2STR]; +- lua_Number n = nvalue(obj); +- lua_number2str(s, n); ++ luaO_num2buf(s,obj); + setsvalue2s(L, obj, luaS_new(L, s)); + return 1; + } +@@ -218,59 +230,127 @@ + } + + ++#ifdef LNUM_COMPLEX ++void error_complex( lua_State *L, const TValue *l, const TValue *r ) ++{ ++ char buf1[ LUAI_MAXNUMBER2STR ]; ++ char buf2[ LUAI_MAXNUMBER2STR ]; ++ luaO_num2buf( buf1, l ); ++ luaO_num2buf( buf2, r ); ++ luaG_runerror( L, "unable to compare: %s with %s", buf1, buf2 ); ++ /* no return */ ++} ++#endif ++ ++ + int luaV_lessthan (lua_State *L, const TValue *l, const TValue *r) { + int res; +- if (ttype(l) != ttype(r)) ++ int tl,tr; ++ lua_Integer tmp; ++ ++ if (!ttype_ext_same(l,r)) + return luaG_ordererror(L, l, r); +- else if (ttisnumber(l)) +- return luai_numlt(nvalue(l), nvalue(r)); +- else if (ttisstring(l)) +- return l_strcmp(rawtsvalue(l), rawtsvalue(r)) < 0; +- else if ((res = call_orderTM(L, l, r, TM_LT)) != -1) ++#ifdef LNUM_COMPLEX ++ if ( (nvalue_img(l)!=0) || (nvalue_img(r)!=0) ) ++ error_complex( L, l, r ); ++#endif ++ tl= ttype(l); tr= ttype(r); ++ if (tl==tr) { /* clear arithmetics */ ++ switch(tl) { ++ case LUA_TINT: return ivalue(l) < ivalue(r); ++ case LUA_TNUMBER: return luai_numlt(nvalue_fast(l), nvalue_fast(r)); ++ case LUA_TSTRING: return l_strcmp(rawtsvalue(l), rawtsvalue(r)) < 0; ++ } ++ } else if (tl==LUA_TINT) { /* l:int, r:num */ ++ /* Avoid accuracy losing casts: if 'r' is integer by value, do comparisons ++ * in integer realm. Only otherwise cast 'l' to FP (which might change its ++ * value). ++ */ ++ if (tt_integer_valued(r,&tmp)) ++ return ivalue(l) < tmp; ++ else ++ return luai_numlt( cast_num(ivalue(l)), nvalue_fast(r) ); ++ ++ } else if (tl==LUA_TNUMBER) { /* l:num, r:int */ ++ if (tt_integer_valued(l,&tmp)) ++ return tmp < ivalue(r); ++ else ++ return luai_numlt( nvalue_fast(l), cast_num(ivalue(r)) ); ++ ++ } else if ((res = call_orderTM(L, l, r, TM_LT)) != -1) + return res; ++ + return luaG_ordererror(L, l, r); + } + + + static int lessequal (lua_State *L, const TValue *l, const TValue *r) { + int res; +- if (ttype(l) != ttype(r)) ++ int tl, tr; ++ lua_Integer tmp; ++ ++ if (!ttype_ext_same(l,r)) + return luaG_ordererror(L, l, r); +- else if (ttisnumber(l)) +- return luai_numle(nvalue(l), nvalue(r)); +- else if (ttisstring(l)) +- return l_strcmp(rawtsvalue(l), rawtsvalue(r)) <= 0; +- else if ((res = call_orderTM(L, l, r, TM_LE)) != -1) /* first try `le' */ ++#ifdef LNUM_COMPLEX ++ if ( (nvalue_img(l)!=0) || (nvalue_img(r)!=0) ) ++ error_complex( L, l, r ); ++#endif ++ tl= ttype(l); tr= ttype(r); ++ if (tl==tr) { /* clear arithmetics */ ++ switch(tl) { ++ case LUA_TINT: return ivalue(l) <= ivalue(r); ++ case LUA_TNUMBER: return luai_numle(nvalue_fast(l), nvalue_fast(r)); ++ case LUA_TSTRING: return l_strcmp(rawtsvalue(l), rawtsvalue(r)) <= 0; ++ } ++ } ++ if (tl==LUA_TINT) { /* l:int, r:num */ ++ if (tt_integer_valued(r,&tmp)) ++ return ivalue(l) <= tmp; ++ else ++ return luai_numle( cast_num(ivalue(l)), nvalue_fast(r) ); ++ ++ } else if (tl==LUA_TNUMBER) { /* l:num, r:int */ ++ if (tt_integer_valued(l,&tmp)) ++ return tmp <= ivalue(r); ++ else ++ return luai_numle( nvalue_fast(l), cast_num(ivalue(r)) ); ++ ++ } else if ((res = call_orderTM(L, l, r, TM_LE)) != -1) /* first try `le' */ + return res; + else if ((res = call_orderTM(L, r, l, TM_LT)) != -1) /* else try `lt' */ + return !res; ++ + return luaG_ordererror(L, l, r); + } + + +-int luaV_equalval (lua_State *L, const TValue *t1, const TValue *t2) { ++/* Note: 'luaV_equalval()' and 'luaO_rawequalObj()' have largely overlapping ++ * implementation. LUA_TNIL..LUA_TLIGHTUSERDATA cases could be handled ++ * simply by the 'default' case here. ++ */ ++int luaV_equalval (lua_State *L, const TValue *l, const TValue *r) { + const TValue *tm; +- lua_assert(ttype(t1) == ttype(t2)); +- switch (ttype(t1)) { ++ lua_assert(ttype_ext_same(l,r)); ++ switch (ttype(l)) { + case LUA_TNIL: return 1; +- case LUA_TNUMBER: return luai_numeq(nvalue(t1), nvalue(t2)); +- case LUA_TBOOLEAN: return bvalue(t1) == bvalue(t2); /* true must be 1 !! */ +- case LUA_TLIGHTUSERDATA: return pvalue(t1) == pvalue(t2); ++ case LUA_TINT: ++ case LUA_TNUMBER: return luaO_rawequalObj(l,r); ++ case LUA_TBOOLEAN: return bvalue(l) == bvalue(r); /* true must be 1 !! */ ++ case LUA_TLIGHTUSERDATA: return pvalue(l) == pvalue(r); + case LUA_TUSERDATA: { +- if (uvalue(t1) == uvalue(t2)) return 1; +- tm = get_compTM(L, uvalue(t1)->metatable, uvalue(t2)->metatable, +- TM_EQ); ++ if (uvalue(l) == uvalue(r)) return 1; ++ tm = get_compTM(L, uvalue(l)->metatable, uvalue(r)->metatable, TM_EQ); + break; /* will try TM */ + } + case LUA_TTABLE: { +- if (hvalue(t1) == hvalue(t2)) return 1; +- tm = get_compTM(L, hvalue(t1)->metatable, hvalue(t2)->metatable, TM_EQ); ++ if (hvalue(l) == hvalue(r)) return 1; ++ tm = get_compTM(L, hvalue(l)->metatable, hvalue(r)->metatable, TM_EQ); + break; /* will try TM */ + } +- default: return gcvalue(t1) == gcvalue(t2); ++ default: return gcvalue(l) == gcvalue(r); + } + if (tm == NULL) return 0; /* no TM? */ +- callTMres(L, L->top, tm, t1, t2); /* call TM */ ++ callTMres(L, L->top, tm, l, r); /* call TM */ + return !l_isfalse(L->top); + } + +@@ -310,30 +390,6 @@ + } + + +-static void Arith (lua_State *L, StkId ra, const TValue *rb, +- const TValue *rc, TMS op) { +- TValue tempb, tempc; +- const TValue *b, *c; +- if ((b = luaV_tonumber(rb, &tempb)) != NULL && +- (c = luaV_tonumber(rc, &tempc)) != NULL) { +- lua_Number nb = nvalue(b), nc = nvalue(c); +- switch (op) { +- case TM_ADD: setnvalue(ra, luai_numadd(nb, nc)); break; +- case TM_SUB: setnvalue(ra, luai_numsub(nb, nc)); break; +- case TM_MUL: setnvalue(ra, luai_nummul(nb, nc)); break; +- case TM_DIV: setnvalue(ra, luai_numdiv(nb, nc)); break; +- case TM_MOD: setnvalue(ra, luai_nummod(nb, nc)); break; +- case TM_POW: setnvalue(ra, luai_numpow(nb, nc)); break; +- case TM_UNM: setnvalue(ra, luai_numunm(nb)); break; +- default: lua_assert(0); break; +- } +- } +- else if (!call_binTM(L, rb, rc, ra, op)) +- luaG_aritherror(L, rb, rc); +-} +- +- +- + /* + ** some macros for common tasks in `luaV_execute' + */ +@@ -357,17 +413,154 @@ + #define Protect(x) { L->savedpc = pc; {x;}; base = L->base; } + + +-#define arith_op(op,tm) { \ +- TValue *rb = RKB(i); \ +- TValue *rc = RKC(i); \ +- if (ttisnumber(rb) && ttisnumber(rc)) { \ +- lua_Number nb = nvalue(rb), nc = nvalue(rc); \ +- setnvalue(ra, op(nb, nc)); \ +- } \ +- else \ +- Protect(Arith(L, ra, rb, rc, tm)); \ ++/* Note: if called for unary operations, 'rc'=='rb'. ++ */ ++static void Arith (lua_State *L, StkId ra, const TValue *rb, ++ const TValue *rc, TMS op) { ++ TValue tempb, tempc; ++ const TValue *b, *c; ++ lua_Number nb,nc; ++ ++ if ((b = luaV_tonumber(rb, &tempb)) != NULL && ++ (c = luaV_tonumber(rc, &tempc)) != NULL) { ++ ++ /* Keep integer arithmetics in the integer realm, if possible. ++ */ ++ if (ttisint(b) && ttisint(c)) { ++ lua_Integer ib = ivalue(b), ic = ivalue(c); ++ lua_Integer *ri = &ra->value.i; ++ ra->tt= LUA_TINT; /* part of 'setivalue(ra)' */ ++ switch (op) { ++ case TM_ADD: if (try_addint( ri, ib, ic)) return; break; ++ case TM_SUB: if (try_subint( ri, ib, ic)) return; break; ++ case TM_MUL: if (try_mulint( ri, ib, ic)) return; break; ++ case TM_DIV: if (try_divint( ri, ib, ic)) return; break; ++ case TM_MOD: if (try_modint( ri, ib, ic)) return; break; ++ case TM_POW: if (try_powint( ri, ib, ic)) return; break; ++ case TM_UNM: if (try_unmint( ri, ib)) return; break; ++ default: lua_assert(0); ++ } ++ } ++ /* Fallback to floating point, when leaving range. */ ++ ++#ifdef LNUM_COMPLEX ++ if ((nvalue_img(b)!=0) || (nvalue_img(c)!=0)) { ++ lua_Complex r; ++ if (op==TM_UNM) { ++ r= -nvalue_complex_fast(b); /* never an integer (or scalar) */ ++ setnvalue_complex_fast( ra, r ); ++ } else { ++ lua_Complex bb= nvalue_complex(b), cc= nvalue_complex(c); ++ switch (op) { ++ case TM_ADD: r= bb + cc; break; ++ case TM_SUB: r= bb - cc; break; ++ case TM_MUL: r= bb * cc; break; ++ case TM_DIV: r= bb / cc; break; ++ case TM_MOD: ++ luaG_runerror(L, "attempt to use %% on complex numbers"); /* no return */ ++ case TM_POW: r= luai_vectpow( bb, cc ); break; ++ default: lua_assert(0); r=0; ++ } ++ setnvalue_complex( ra, r ); + } ++ return; ++ } ++#endif ++ nb = nvalue(b); nc = nvalue(c); ++ switch (op) { ++ case TM_ADD: setnvalue(ra, luai_numadd(nb, nc)); return; ++ case TM_SUB: setnvalue(ra, luai_numsub(nb, nc)); return; ++ case TM_MUL: setnvalue(ra, luai_nummul(nb, nc)); return; ++ case TM_DIV: setnvalue(ra, luai_numdiv(nb, nc)); return; ++ case TM_MOD: setnvalue(ra, luai_nummod(nb, nc)); return; ++ case TM_POW: setnvalue(ra, luai_numpow(nb, nc)); return; ++ case TM_UNM: setnvalue(ra, luai_numunm(nb)); return; ++ default: lua_assert(0); ++ } ++ } ++ ++ /* Either operand not a number */ ++ if (!call_binTM(L, rb, rc, ra, op)) ++ luaG_aritherror(L, rb, rc); ++} + ++/* Helper macro to sort arithmetic operations into four categories: ++ * TK_INT: integer - integer operands ++ * TK_NUMBER: number - number (non complex, either may be integer) ++ * TK_NUMBER2: complex numbers (at least the other) ++ * 0: non-numeric (at least the other) ++*/ ++#ifdef LNUM_COMPLEX ++static inline int arith_mode( const TValue *rb, const TValue *rc ) { ++ if (ttisint(rb) && ttisint(rc)) return TK_INT; ++ if (ttiscomplex(rb) || ttiscomplex(rc)) return TK_NUMBER2; ++ if (ttisnumber(rb) && ttisnumber(rc)) return TK_NUMBER; ++ return 0; ++} ++#else ++# define arith_mode(rb,rc) \ ++ ( (ttisint(rb) && ttisint(rc)) ? TK_INT : \ ++ (ttisnumber(rb) && ttisnumber(rc)) ? TK_NUMBER : 0 ) ++#endif ++ ++/* arith_op macro for two operators: ++ * automatically chooses, which function (number, integer, complex) to use ++ */ ++#define ARITH_OP2_START( op_num, op_int ) \ ++ int failed= 0; \ ++ switch( arith_mode(rb,rc) ) { \ ++ case TK_INT: \ ++ if (op_int ( &(ra)->value.i, ivalue(rb), ivalue(rc) )) \ ++ { ra->tt= LUA_TINT; break; } /* else flow through */ \ ++ case TK_NUMBER: \ ++ setnvalue(ra, op_num ( nvalue(rb), nvalue(rc) )); break; ++ ++#define ARITH_OP2_END \ ++ default: \ ++ failed= 1; break; \ ++ } if (!failed) continue; ++ ++#define arith_op_continue_scalar( op_num, op_int ) \ ++ ARITH_OP2_START( op_num, op_int ) \ ++ ARITH_OP2_END ++ ++#ifdef LNUM_COMPLEX ++# define arith_op_continue( op_num, op_int, op_complex ) \ ++ ARITH_OP2_START( op_num, op_int ) \ ++ case TK_NUMBER2: \ ++ setnvalue_complex( ra, op_complex ( nvalue_complex(rb), nvalue_complex(rc) ) ); break; \ ++ ARITH_OP2_END ++#else ++# define arith_op_continue(op_num,op_int,_) arith_op_continue_scalar(op_num,op_int) ++#endif ++ ++/* arith_op macro for one operator: ++ */ ++#define ARITH_OP1_START( op_num, op_int ) \ ++ int failed= 0; \ ++ switch( arith_mode(rb,rb) ) { \ ++ case TK_INT: \ ++ if (op_int ( &(ra)->value.i, ivalue(rb) )) \ ++ { ra->tt= LUA_TINT; break; } /* else flow through */ \ ++ case TK_NUMBER: \ ++ setnvalue(ra, op_num (nvalue(rb))); break; \ ++ ++#define ARITH_OP1_END \ ++ default: \ ++ failed= 1; break; \ ++ } if (!failed) continue; ++ ++#ifdef LNUM_COMPLEX ++# define arith_op1_continue( op_num, op_int, op_complex ) \ ++ ARITH_OP1_START( op_num, op_int ) \ ++ case TK_NUMBER2: \ ++ setnvalue_complex( ra, op_complex ( nvalue_complex_fast(rb) )); break; \ ++ ARITH_OP1_END ++#else ++# define arith_op1_continue( op_num, op_int, _ ) \ ++ ARITH_OP1_START( op_num, op_int ) \ ++ ARITH_OP1_END ++#endif + + + void luaV_execute (lua_State *L, int nexeccalls) { +@@ -468,38 +661,45 @@ + continue; + } + case OP_ADD: { +- arith_op(luai_numadd, TM_ADD); ++ TValue *rb = RKB(i), *rc= RKC(i); ++ arith_op_continue( luai_numadd, try_addint, luai_vectadd ); ++ Protect(Arith(L, ra, rb, rc, TM_ADD)); \ + continue; + } + case OP_SUB: { +- arith_op(luai_numsub, TM_SUB); ++ TValue *rb = RKB(i), *rc= RKC(i); ++ arith_op_continue( luai_numsub, try_subint, luai_vectsub ); ++ Protect(Arith(L, ra, rb, rc, TM_SUB)); + continue; + } + case OP_MUL: { +- arith_op(luai_nummul, TM_MUL); ++ TValue *rb = RKB(i), *rc= RKC(i); ++ arith_op_continue(luai_nummul, try_mulint, luai_vectmul); ++ Protect(Arith(L, ra, rb, rc, TM_MUL)); + continue; + } + case OP_DIV: { +- arith_op(luai_numdiv, TM_DIV); ++ TValue *rb = RKB(i), *rc= RKC(i); ++ arith_op_continue(luai_numdiv, try_divint, luai_vectdiv); ++ Protect(Arith(L, ra, rb, rc, TM_DIV)); + continue; + } + case OP_MOD: { +- arith_op(luai_nummod, TM_MOD); ++ TValue *rb = RKB(i), *rc= RKC(i); ++ arith_op_continue_scalar(luai_nummod, try_modint); /* scalars only */ ++ Protect(Arith(L, ra, rb, rc, TM_MOD)); + continue; + } + case OP_POW: { +- arith_op(luai_numpow, TM_POW); ++ TValue *rb = RKB(i), *rc= RKC(i); ++ arith_op_continue(luai_numpow, try_powint, luai_vectpow); ++ Protect(Arith(L, ra, rb, rc, TM_POW)); + continue; + } + case OP_UNM: { + TValue *rb = RB(i); +- if (ttisnumber(rb)) { +- lua_Number nb = nvalue(rb); +- setnvalue(ra, luai_numunm(nb)); +- } +- else { +- Protect(Arith(L, ra, rb, rb, TM_UNM)); +- } ++ arith_op1_continue(luai_numunm, try_unmint, luai_vectunm); ++ Protect(Arith(L, ra, rb, rb, TM_UNM)); + continue; + } + case OP_NOT: { +@@ -511,11 +711,11 @@ + const TValue *rb = RB(i); + switch (ttype(rb)) { + case LUA_TTABLE: { +- setnvalue(ra, cast_num(luaH_getn(hvalue(rb)))); ++ setivalue(ra, luaH_getn(hvalue(rb))); + break; + } + case LUA_TSTRING: { +- setnvalue(ra, cast_num(tsvalue(rb)->len)); ++ setivalue(ra, tsvalue(rb)->len); + break; + } + default: { /* try metamethod */ +@@ -648,14 +848,30 @@ + } + } + case OP_FORLOOP: { +- lua_Number step = nvalue(ra+2); +- lua_Number idx = luai_numadd(nvalue(ra), step); /* increment index */ +- lua_Number limit = nvalue(ra+1); +- if (luai_numlt(0, step) ? luai_numle(idx, limit) +- : luai_numle(limit, idx)) { +- dojump(L, pc, GETARG_sBx(i)); /* jump back */ +- setnvalue(ra, idx); /* update internal index... */ +- setnvalue(ra+3, idx); /* ...and external index */ ++ /* If start,step and limit are all integers, we don't need to check ++ * against overflow in the looping. ++ */ ++ if (ttisint(ra) && ttisint(ra+1) && ttisint(ra+2)) { ++ lua_Integer step = ivalue(ra+2); ++ lua_Integer idx = ivalue(ra) + step; /* increment index */ ++ lua_Integer limit = ivalue(ra+1); ++ if (step > 0 ? (idx <= limit) : (limit <= idx)) { ++ dojump(L, pc, GETARG_sBx(i)); /* jump back */ ++ setivalue(ra, idx); /* update internal index... */ ++ setivalue(ra+3, idx); /* ...and external index */ ++ } ++ } else { ++ /* non-integer looping (don't use 'nvalue_fast', some may be integer!) ++ */ ++ lua_Number step = nvalue(ra+2); ++ lua_Number idx = luai_numadd(nvalue(ra), step); /* increment index */ ++ lua_Number limit = nvalue(ra+1); ++ if (luai_numlt(0, step) ? luai_numle(idx, limit) ++ : luai_numle(limit, idx)) { ++ dojump(L, pc, GETARG_sBx(i)); /* jump back */ ++ setnvalue(ra, idx); /* update internal index... */ ++ setnvalue(ra+3, idx); /* ...and external index */ ++ } + } + continue; + } +@@ -664,13 +880,21 @@ + const TValue *plimit = ra+1; + const TValue *pstep = ra+2; + L->savedpc = pc; /* next steps may throw errors */ ++ /* Using same location for tonumber's both arguments, effectively does ++ * in-place modification (string->number). */ + if (!tonumber(init, ra)) + luaG_runerror(L, LUA_QL("for") " initial value must be a number"); + else if (!tonumber(plimit, ra+1)) + luaG_runerror(L, LUA_QL("for") " limit must be a number"); + else if (!tonumber(pstep, ra+2)) + luaG_runerror(L, LUA_QL("for") " step must be a number"); +- setnvalue(ra, luai_numsub(nvalue(ra), nvalue(pstep))); ++ /* Step back one value (keep within integers if we can) ++ */ ++ if (!( ttisint(ra) && ttisint(pstep) && ++ try_subint( &ra->value.i, ivalue(ra), ivalue(pstep) ) )) { ++ /* don't use 'nvalue_fast()', values may be integer */ ++ setnvalue(ra, luai_numsub(nvalue(ra), nvalue(pstep))); ++ } + dojump(L, pc, GETARG_sBx(i)); + continue; + } +@@ -707,7 +931,7 @@ + luaH_resizearray(L, h, last); /* pre-alloc it at once */ + for (; n > 0; n--) { + TValue *val = ra+n; +- setobj2t(L, luaH_setnum(L, h, last--), val); ++ setobj2t(L, luaH_setint(L, h, last--), val); + luaC_barriert(L, h, val); + } + continue; +Index: lua-5.1.4/src/lvm.h +=================================================================== +--- lua-5.1.4.orig/src/lvm.h 2008-08-24 16:46:38.000000000 +0200 ++++ lua-5.1.4/src/lvm.h 2008-08-24 16:48:20.000000000 +0200 +@@ -15,11 +15,9 @@ + + #define tostring(L,o) ((ttype(o) == LUA_TSTRING) || (luaV_tostring(L, o))) + +-#define tonumber(o,n) (ttype(o) == LUA_TNUMBER || \ +- (((o) = luaV_tonumber(o,n)) != NULL)) ++#define tonumber(o,n) (ttisnumber(o) || (((o) = luaV_tonumber(o,n)) != NULL)) + +-#define equalobj(L,o1,o2) \ +- (ttype(o1) == ttype(o2) && luaV_equalval(L, o1, o2)) ++#define equalobj(L,o1,o2) (ttype_ext_same(o1,o2) && luaV_equalval(L, o1, o2)) + + + LUAI_FUNC int luaV_lessthan (lua_State *L, const TValue *l, const TValue *r); +Index: lua-5.1.4/src/print.c +=================================================================== +--- lua-5.1.4.orig/src/print.c 2008-08-24 16:46:38.000000000 +0200 ++++ lua-5.1.4/src/print.c 2008-08-24 16:48:20.000000000 +0200 +@@ -14,6 +14,7 @@ + #include "lobject.h" + #include "lopcodes.h" + #include "lundump.h" ++#include "lnum.h" + + #define PrintFunction luaU_print + +@@ -59,8 +60,16 @@ + case LUA_TBOOLEAN: + printf(bvalue(o) ? "true" : "false"); + break; ++ case LUA_TINT: ++ printf(LUA_INTEGER_FMT,ivalue(o)); ++ break; + case LUA_TNUMBER: +- printf(LUA_NUMBER_FMT,nvalue(o)); ++#ifdef LNUM_COMPLEX ++ // TBD: Do we get complex values here? ++ { lua_Number b= nvalue_img_fast(o); ++ printf( LUA_NUMBER_FMT "%s" LUA_NUMBER_FMT "i", nvalue_fast(o), b>=0 ? "+":"", b ); } ++#endif ++ printf(LUA_NUMBER_FMT,nvalue_fast(o)); + break; + case LUA_TSTRING: + PrintString(rawtsvalue(o)); |