diff options
Diffstat (limited to 'libm/w_hypotf.c')
-rw-r--r-- | libm/w_hypotf.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/libm/w_hypotf.c b/libm/w_hypotf.c new file mode 100644 index 000000000..f6087174a --- /dev/null +++ b/libm/w_hypotf.c @@ -0,0 +1,37 @@ +/* w_hypotf.c -- float version of w_hypot.c. + * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@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 hypotf(x,y) + */ + +#include <math.h> +#include "math_private.h" + +float +hypotf(float x, float y) +{ +#if __UCLIBC_HAS_FENV__ + float z = (float) __ieee754_hypot((double) x, (double) y); + if(__builtin_expect(!isfinite(z), 0) + && isfinite(x) && isfinite(y) && _LIB_VERSION != _IEEE_) + /* hypot overflow */ + return __kernel_standard_f(x, y, 104); + + return z; +#else + return (float) __ieee754_hypot((double) x, (double) y); +#endif +}
\ No newline at end of file |