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| author | Bryan Newbold <bnewbold@robocracy.org> | 2017-02-20 00:05:31 -0800 |
|---|---|---|
| committer | Bryan Newbold <bnewbold@robocracy.org> | 2017-02-20 00:05:31 -0800 |
| commit | 5145dd3aa0c02c9fc496d1432fc4410674206e1d (patch) | |
| tree | 540afc30c51da085f5bd8ec3f4c89f6496e7900d /bytenumb.scm | |
| parent | 8466d8cfa486fb30d1755c4261b781135083787b (diff) | |
| download | slib-5145dd3aa0c02c9fc496d1432fc4410674206e1d.tar.gz slib-5145dd3aa0c02c9fc496d1432fc4410674206e1d.zip | |
Import Upstream version 3a2upstream/3a2
Diffstat (limited to 'bytenumb.scm')
| -rw-r--r-- | bytenumb.scm | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/bytenumb.scm b/bytenumb.scm index 68ee748..7febf64 100644 --- a/bytenumb.scm +++ b/bytenumb.scm @@ -1,5 +1,5 @@ ;;; "bytenumb.scm" Byte integer and IEEE floating-point conversions. -; Copyright (c) 2003 Aubrey Jaffer +; Copyright (C) 2003 Aubrey Jaffer ; ;Permission to copy this software, to modify it, to redistribute it, ;to distribute modified versions, and to use it for any purpose is @@ -20,10 +20,6 @@ (require 'byte) (require 'logical) -(define bn:expt - (if (provided? 'inexact) expt - (lambda (n k) (if (negative? k) 0 (integer-expt n k))))) - ;;@code{(require 'byte-number)} ;;@ftindex byte-number @@ -107,7 +103,7 @@ (idx (+ -2 len) (+ -1 idx))) ((<= idx 1) (set! F (/ (+ (logand #x7F (byte-ref bytes 1)) (/ F 256)) 128)) - (cond ((< 0 E 255) (* (if S -1 1) (bn:expt 2 (- E 127)) (+ 1 F))) + (cond ((< 0 E 255) (* (if S -1 1) (expt 2 (- E 127)) (+ 1 F))) ((zero? E) (if (zero? F) (if S (- zero) zero) @@ -151,7 +147,7 @@ (idx (+ -2 len) (+ -1 idx))) ((<= idx 1) (set! F (/ (+ (logand #x0F (byte-ref bytes 1)) (/ F 256)) 16)) - (cond ((< 0 E 2047) (* (if S -1 1) (bn:expt 2 (- E 1023)) (+ 1 F))) + (cond ((< 0 E 2047) (* (if S -1 1) (expt 2 (- E 1023)) (+ 1 F))) ((zero? E) (if (zero? F) (if S (- zero) zero) |