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+ is not an asubr

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* libguile/numbers.h:
* libguile/numbers.c (scm_i_sum): Rework so that scm_sum is just a
  normal function. Its generic is actually provided by scm_i_sum, a
  gsubr with rest args. In that way, + is no longer an asubr.
This commit is contained in:
Andy Wingo 2009-09-06 14:15:28 +02:00
parent b04ab0c624
commit 8ccd24f7bb
2 changed files with 19 additions and 4 deletions
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22
libguile/numbers.c
View file

@ -3991,10 +3991,24 @@ scm_min (SCM x, SCM y)
}
SCM_GPROC1 (s_sum, "+", scm_tc7_asubr, scm_sum, g_sum);
/* "Return the sum of all parameter values. Return 0 if called without\n"
* "any parameters."
*/
SCM_PRIMITIVE_GENERIC (scm_i_sum, "+", 0, 2, 1,
(SCM x, SCM y, SCM rest),
"Return the sum of all parameter values. Return 0 if called without\n"
"any parameters." )
#define FUNC_NAME s_scm_i_sum
{
while (!scm_is_null (rest))
{ x = scm_sum (x, y);
y = scm_car (rest);
rest = scm_cdr (rest);
}
return scm_sum (x, y);
}
#undef FUNC_NAME
#define s_sum s_scm_i_sum
#define g_sum g_scm_i_sum
SCM
scm_sum (SCM x, SCM y)
{

1
libguile/numbers.h
View file

@ -238,6 +238,7 @@ SCM_API SCM scm_negative_p (SCM x);
SCM_API SCM scm_max (SCM x, SCM y);
SCM_API SCM scm_min (SCM x, SCM y);
SCM_API SCM scm_sum (SCM x, SCM y);
SCM_INTERNAL SCM scm_i_sum (SCM x, SCM y, SCM rest);
SCM_API SCM scm_oneplus (SCM x);
SCM_API SCM scm_difference (SCM x, SCM y);
SCM_API SCM scm_oneminus (SCM x);