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Diffstat (limited to 'features.txi')
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diff --git a/features.txi b/features.txi new file mode 100644 index 0000000..96987b8 --- /dev/null +++ b/features.txi @@ -0,0 +1,200 @@ +@item array +@cindex array +Alias for ARRAYS + +@item array-for-each +@cindex array-for-each +array-map! and array-for-each (arrays must also be featured). + +@item arrays +@cindex arrays +Use if you want arrays, uniform-arrays and uniform-vectors. + +@item bignums +@cindex bignums +Large precision integers. + +@item byte +@cindex byte +Treating strings as byte-vectors. + +@item careful-interrupt-masking +@cindex careful-interrupt-masking +Define this for extra checking of interrupt masking and some simple +checks for proper use of malloc and free. This is for debugging C +code in @file{sys.c}, @file{eval.c}, @file{repl.c} and makes the +interpreter several times slower than usual. + +@item cautious +@cindex cautious +Normally, the number of arguments arguments to interpreted closures +(from LAMBDA) are checked if the function part of a form is not a +symbol or only the first time the form is executed if the function +part is a symbol. defining @samp{reckless} disables any checking. +If you want to have SCM always check the number of arguments to +interpreted closures define feature @samp{cautious}. + +@item cheap-continuations +@cindex cheap-continuations +If you only need straight stack continuations, executables compile with +this feature will run faster and use less storage than not having it. +Machines with unusual stacks @emph{need} this. Also, if you incorporate +new C code into scm which uses VMS system services or library routines +(which need to unwind the stack in an ordrly manner) you may need to +use this feature. + +@item compiled-closure +@cindex compiled-closure +Use if you want to use compiled closures. + +@item curses +@cindex curses +For the @dfn{curses} screen management package. + +@item debug +@cindex debug +Turns on the features @samp{cautious}, +@samp{careful-interrupt-masking}, and @samp{stack-limit}; uses +@code{-g} flags for debugging SCM source code. + +@item dump +@cindex dump +Convert a running scheme program into an executable file. + +@item dynamic-linking +@cindex dynamic-linking +Be able to load compiled files while running. + +@item edit-line +@cindex edit-line +interface to the editline or GNU readline library. + +@item engineering-notation +@cindex engineering-notation +Use if you want floats to display in engineering notation (exponents +always multiples of 3) instead of scientific notation. + +@item generalized-c-arguments +@cindex generalized-c-arguments +@code{make_gsubr} for arbitrary (< 11) arguments to C functions. + +@item i/o-extensions +@cindex i/o-extensions +Commonly available I/O extensions: @dfn{exec}, line I/O, file +positioning, file delete and rename, and directory functions. + +@item inexact +@cindex inexact +Use if you want floating point numbers. + +@item lit +@cindex lit +Lightweight -- no features + +@item macro +@cindex macro +C level support for hygienic and referentially transparent macros +(syntax-rules macros). + +@item mysql +@cindex mysql +Client connections to the mysql databases. + +@item no-heap-shrink +@cindex no-heap-shrink +Use if you want segments of unused heap to not be freed up after +garbage collection. This may increase time in GC for *very* large +working sets. + +@item none +@cindex none +No features + +@item posix +@cindex posix +Posix functions available on all @dfn{Unix-like} systems. fork and +process functions, user and group IDs, file permissions, and +@dfn{link}. + +@item reckless +@cindex reckless +If your scheme code runs without any errors you can disable almost +all error checking by compiling all files with @samp{reckless}. + +@item record +@cindex record +The Record package provides a facility for user to define their own +record data types. See SLIB for documentation. + +@item regex +@cindex regex +String regular expression matching. + +@item rev2-procedures +@cindex rev2-procedures +These procedures were specified in the @cite{Revised^2 Report on Scheme} +but not in @cite{R4RS}. + +@item sicp +@cindex sicp +Use if you want to run code from: + +@cindex SICP +Harold Abelson and Gerald Jay Sussman with Julie Sussman. +@cite{Structure and Interpretation of Computer Programs.} +The MIT Press, Cambridge, Massachusetts, USA, 1985. + +Differences from R5RS are: +@itemize @bullet +@item +(eq? '() '#f) +@item +(define a 25) returns the symbol a. +@item +(set! a 36) returns 36. +@end itemize + +@item single-precision-only +@cindex single-precision-only +Use if you want all inexact real numbers to be single precision. This +only has an effect if SINGLES is also defined (which is the default). +This does not affect complex numbers. + +@item socket +@cindex socket +BSD @dfn{socket} interface. + +@item stack-limit +@cindex stack-limit +Use to enable checking for stack overflow. Define value of the C +preprocessor variable @var{STACK_LIMIT} to be the size to which SCM +should allow the stack to grow. STACK_LIMIT should be less than the +maximum size the hardware can support, as not every routine checks the +stack. + +@item tick-interrupts +@cindex tick-interrupts +Use if you want the ticks and ticks-interrupt functions. + +@item turtlegr +@cindex turtlegr +@dfn{Turtle} graphics calls for both Borland-C and X11 from +sjm@@ee.tut.fi. + +@item unix +@cindex unix +Those unix features which have not made it into the Posix specs: +nice, acct, lstat, readlink, symlink, mknod and sync. + +@item windows +@cindex windows +Microsoft Windows executable. + +@item x +@cindex x +Alias for Xlib feature. + +@item xlib +@cindex xlib +Interface to Xlib graphics routines. + |