diff options
Diffstat (limited to 'newlib/libm/mathfp/sf_acos.c')
-rw-r--r-- | newlib/libm/mathfp/sf_acos.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/newlib/libm/mathfp/sf_acos.c b/newlib/libm/mathfp/sf_acos.c new file mode 100644 index 00000000000..6bef9804152 --- /dev/null +++ b/newlib/libm/mathfp/sf_acos.c @@ -0,0 +1,33 @@ + +/* @(#)z_acosf.c 1.0 98/08/13 */ +/****************************************************************** + * Arccosine + * + * Input: + * x - floating point value + * + * Output: + * arccosine of x + * + * Description: + * This routine returns the arccosine of x. + * + *****************************************************************/ + +#include "fdlibm.h" +#include "zmath.h" + +float +_DEFUN (acosf, (float), + float x) +{ + return (asinef (x, 1)); +} + +#ifdef _DOUBLE_IS_32BITS +double acos (double x) +{ + return (double) asinef ((float) x, 1); +} + +#endif /* defined(_DOUBLE_IS_32BITS) */ |