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* Re-introduced most-positive-fixnum and most-negative-fixnum.

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Dirk Herrmann 2000-12-14 00:08:56 +00:00
parent 0f979f3fb6
commit a261c0e933
3 changed files with 14 additions and 1 deletions
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2
NEWS
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@ -211,7 +211,7 @@ current values of file descriptors 0, 1, and 2 in the parent process.
There is no such concept as a weak binding any more. There is no such concept as a weak binding any more.
** Removed constants: most-positive-fixnum, most-negative-fixnum, bignum-radix ** Removed constants: bignum-radix
* Changes to the gh_ interface * Changes to the gh_ interface

6
libguile/ChangeLog
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@ -1,3 +1,9 @@
2000-12-13 Dirk Herrmann <D.Herrmann@tu-bs.de>
* numbers.c (scm_init_numbers): Re-introduced bindings for
most-positive-fixnum and most-negative-fixnum as requested by
Mikael Djurfeldt.
2000-12-12 Dirk Herrmann <D.Herrmann@tu-bs.de> 2000-12-12 Dirk Herrmann <D.Herrmann@tu-bs.de>
The variable scm_symbols is made static within symbols.c and The variable scm_symbols is made static within symbols.c and

7
libguile/numbers.c
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@ -4353,6 +4353,13 @@ scm_num2ulong (SCM num, char *pos, const char *s_caller)
void void
scm_init_numbers () scm_init_numbers ()
{ {
/* It may be possible to tune the performance of some algorithms by using
* the following constants to avoid the creation of bignums. Please, before
* using these values, remember the two rules of program optimization:
* 1st Rule: Don't do it. 2nd Rule (experts only): Don't do it yet. */
scm_sysintern ("most-positive-fixnum", SCM_MAKINUM (SCM_MOST_POSITIVE_FIXNUM));
scm_sysintern ("most-negative-fixnum", SCM_MAKINUM (SCM_MOST_NEGATIVE_FIXNUM));
scm_add_feature ("complex"); scm_add_feature ("complex");
scm_add_feature ("inexact"); scm_add_feature ("inexact");
scm_flo0 = scm_make_real (0.0); scm_flo0 = scm_make_real (0.0);