mirror of
https://gitlab.com/embeddable-common-lisp/ecl.git
synced 2026-01-26 06:22:33 -08:00
fa28f08770
ext:float-infinity-p returned true for NaNs and ext:float-nan-p was slower than necessary.
92 lines
1.8 KiB
C
92 lines
1.8 KiB
C
/* -*- Mode: C; c-basic-offset: 2; indent-tabs-mode: nil -*- */
|
|
/* vim: set filetype=c tabstop=2 shiftwidth=2 expandtab: */
|
|
|
|
/*
|
|
* num_pred.d - predicates on numbers
|
|
*
|
|
* Copyright (c) 1984 Taiichi Yuasa and Masami Hagiya
|
|
* Copyright (c) 1990 Giuseppe Attardi
|
|
* Copyright (c) 2001 Juan Jose Garcia Ripoll
|
|
*
|
|
* See file 'LICENSE' for the copyright details.
|
|
*
|
|
*/
|
|
|
|
#define ECL_INCLUDE_MATH_H
|
|
#include <ecl/ecl.h>
|
|
#include <ecl/internal.h>
|
|
#include <ecl/impl/math_dispatch.h>
|
|
|
|
int
|
|
ecl_oddp(cl_object x)
|
|
{
|
|
if (ECL_FIXNUMP(x))
|
|
return ecl_fixnum(x) & 1;
|
|
unlikely_if (!ECL_BIGNUMP(x))
|
|
FEwrong_type_only_arg(@[oddp], x, @[integer]);
|
|
return _ecl_big_odd_p(x);
|
|
}
|
|
|
|
int
|
|
ecl_evenp(cl_object x)
|
|
{
|
|
if (ECL_FIXNUMP(x))
|
|
return ~ecl_fixnum(x) & 1;
|
|
unlikely_if (!ECL_BIGNUMP(x))
|
|
FEwrong_type_only_arg(@[evenp], x, @[integer]);
|
|
return _ecl_big_even_p(x);
|
|
}
|
|
|
|
cl_object
|
|
cl_oddp(cl_object x)
|
|
{ /* INV: ecl_oddp() checks type */
|
|
@(return (ecl_oddp(x) ? ECL_T : ECL_NIL));
|
|
}
|
|
|
|
cl_object
|
|
cl_evenp(cl_object x)
|
|
{ /* INV: ecl_evenp() checks_type */
|
|
@(return (ecl_evenp(x) ? ECL_T : ECL_NIL));
|
|
}
|
|
|
|
cl_object
|
|
si_float_nan_p(cl_object x)
|
|
{
|
|
@(return (ecl_float_nan_p(x)? ECL_T : ECL_NIL));
|
|
}
|
|
|
|
cl_object
|
|
si_float_infinity_p(cl_object x)
|
|
{
|
|
@(return (ecl_float_infinity_p(x)? ECL_T : ECL_NIL));
|
|
}
|
|
|
|
bool
|
|
ecl_float_nan_p(cl_object x)
|
|
{
|
|
switch (ecl_t_of(x)) {
|
|
case t_singlefloat:
|
|
return isnan(ecl_single_float(x));
|
|
case t_doublefloat:
|
|
return isnan(ecl_double_float(x));
|
|
case t_longfloat:
|
|
return isnan(ecl_long_float(x));
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
bool
|
|
ecl_float_infinity_p(cl_object x)
|
|
{
|
|
switch (ecl_t_of(x)) {
|
|
case t_singlefloat:
|
|
return isinf(ecl_single_float(x));
|
|
case t_doublefloat:
|
|
return isinf(ecl_double_float(x));
|
|
case t_longfloat:
|
|
return isinf(ecl_long_float(x));
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|