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Build scm_integer_p on scm_is_integer, not vice versa

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* libguile/numbers.c: Switch layering of scm_is_integer /
scm_is_exact_integer and their SCM-valued counterparts.
This commit is contained in:
Andy Wingo 2022-01-04 12:01:18 +01:00
parent 24ce3cedfc
commit ef5ade30f9
1 changed files with 11 additions and 15 deletions
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26
libguile/numbers.c
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@ -4605,15 +4605,7 @@ SCM_DEFINE (scm_integer_p, "integer?", 1, 0, 0,
"else return @code{#f}.") "else return @code{#f}.")
#define FUNC_NAME s_scm_integer_p #define FUNC_NAME s_scm_integer_p
{ {
if (SCM_I_INUMP (x) || SCM_BIGP (x)) return scm_from_bool (scm_is_integer (x));
return SCM_BOOL_T;
else if (SCM_REALP (x))
{
double val = SCM_REAL_VALUE (x);
return scm_from_bool (!isinf (val) && (val == floor (val)));
}
else
return SCM_BOOL_F;
} }
#undef FUNC_NAME #undef FUNC_NAME
@ -4623,10 +4615,7 @@ SCM_DEFINE (scm_exact_integer_p, "exact-integer?", 1, 0, 0,
"else return @code{#f}.") "else return @code{#f}.")
#define FUNC_NAME s_scm_exact_integer_p #define FUNC_NAME s_scm_exact_integer_p
{ {
if (SCM_I_INUMP (x) || SCM_BIGP (x)) return scm_from_bool (scm_is_exact_integer (x));
return SCM_BOOL_T;
else
return SCM_BOOL_F;
} }
#undef FUNC_NAME #undef FUNC_NAME
@ -7716,13 +7705,20 @@ SCM_DEFINE (scm_rationalize, "rationalize", 2, 0, 0,
int int
scm_is_integer (SCM val) scm_is_integer (SCM val)
{ {
return scm_is_true (scm_integer_p (val)); if (scm_is_exact_integer (val))
return 1;
if (SCM_REALP (val))
{
double x = SCM_REAL_VALUE (val);
return !isinf (x) && (x == floor (x));
}
return 0;
} }
int int
scm_is_exact_integer (SCM val) scm_is_exact_integer (SCM val)
{ {
return scm_is_true (scm_exact_integer_p (val)); return SCM_I_INUMP (val) || SCM_BIGP (val);
} }
int int