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* math/w_fmod.c: Also handle x=±Inf as error.

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* math/w_fmodf.c: Likewise.
	* math/w_fmodl.c: Likewise.
	* math/libm-test.inc (fmod_test): Add tests for errno after calls for
	x=±Inf or y=0.
This commit is contained in:
Ulrich Drepper
2009-04-26 03:43:02 +00:00
parent 0c59a1963e
commit 7095366d1e
5 changed files with 22 additions and 8 deletions
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8
math/w_fmodf.c
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@ -8,7 +8,7 @@
*
* Developed at SunPro, a Sun Microsystems, Inc. business.
* Permission to use, copy, modify, and distribute this
* software is freely granted, provided that this notice
* software is freely granted, provided that this notice
* is preserved.
* ====================================================
*/
@ -17,7 +17,7 @@
static char rcsid[] = "$NetBSD: w_fmodf.c,v 1.3 1995/05/10 20:48:57 jtc Exp $";
#endif
/*
/*
* wrapper fmodf(x,y)
*/
@ -38,8 +38,8 @@ static char rcsid[] = "$NetBSD: w_fmodf.c,v 1.3 1995/05/10 20:48:57 jtc Exp $";
float z;
z = __ieee754_fmodf(x,y);
if(_LIB_VERSION == _IEEE_ ||__isnanf(y)||__isnanf(x)) return z;
if(y==(float)0.0) {
/* fmodf(x,0) */
if(__isinff(x)||y==(float)0.0) {
/* fmodf(+-Inf,y) or fmodf(x,0) */
return (float)__kernel_standard((double)x,(double)y,127);
} else
return z;