diff options
Diffstat (limited to 'math/w_exp10f.c')
| -rw-r--r-- | math/w_exp10f.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/math/w_exp10f.c b/math/w_exp10f.c new file mode 100644 index 0000000000..78e71be069 --- /dev/null +++ b/math/w_exp10f.c @@ -0,0 +1,46 @@ +/* w_exp10f.c -- float version of w_exp10.c. + * Conversion to exp10 by Ulrich Drepper <drepper@cygnus.com>. + */ + +/* + * ==================================================== + * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. + * + * Developed at SunPro, a Sun Microsystems, Inc. business. + * Permission to use, copy, modify, and distribute this + * software is freely granted, provided that this notice + * is preserved. + * ==================================================== + */ + +/* + * wrapper expf10(x) + */ + +#include <math.h> +#include "math_private.h" + +#ifdef __STDC__ + float __exp10f(float x) /* wrapper exp10f */ +#else + float __exp10f(x) /* wrapper exp10f */ + float x; +#endif +{ +#ifdef _IEEE_LIBM + return __ieee754_exp10f(x); +#else + float z; + z = __ieee754_exp10f(x); + if(_LIB_VERSION == _IEEE_) return z; + if(!__finitef(z) && __finitef(x)) { + /* exp10f overflow (146) if x > 0, underflow (147) if x < 0. */ + return (float)__kernel_standard((double) x, (double) x, + 146+!!__signbitf(x)); + } + return z; +#endif +} +weak_alias (__exp10f, exp10f) +strong_alias (__exp10f, __pow10f) +weak_alias (__pow10f, pow10f) |