diff options
author | Christopher Faylor <cgf@redhat.com> | 2000-02-17 19:39:46 +0000 |
---|---|---|
committer | Christopher Faylor <cgf@redhat.com> | 2000-02-17 19:39:46 +0000 |
commit | 6d491d8ad9122891d1a48447e8c49702eb678921 (patch) | |
tree | 45619a131b9f211ceca9fce7a866328344bf00ec /newlib/libm/mathfp/sf_fabs.c | |
parent | bd592806f45307757c24ec3f75bdefe13abfd51f (diff) | |
download | gdb-cvs/SNAPSHOT.tar.gz |
import newlib-2000-02-17 snapshotcvs/SNAPSHOT
Diffstat (limited to 'newlib/libm/mathfp/sf_fabs.c')
-rw-r--r-- | newlib/libm/mathfp/sf_fabs.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/newlib/libm/mathfp/sf_fabs.c b/newlib/libm/mathfp/sf_fabs.c new file mode 100644 index 00000000000..2661eabc078 --- /dev/null +++ b/newlib/libm/mathfp/sf_fabs.c @@ -0,0 +1,45 @@ + +/* @(#)z_fabsf.c 1.0 98/08/13 */ +/****************************************************************** + * Floating-Point Absolute Value + * + * Input: + * x - floating-point number + * + * Output: + * absolute value of x + * + * Description: + * fabs computes the absolute value of a floating point number. + * + *****************************************************************/ + +#include "fdlibm.h" +#include "zmath.h" + +float +_DEFUN (fabsf, (float), + float x) +{ + switch (numtestf (x)) + { + case NAN: + errno = EDOM; + return (x); + case INF: + errno = ERANGE; + return (x); + case 0: + return (0.0); + default: + return (x < 0.0 ? -x : x); + } +} + +#ifdef _DOUBLE_IS_32BITS +double fabs (double x) +{ + return (double) fabsf ((float) x); +} + +#endif /* defined(_DOUBLE_IS_32BITS) */ |