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Diffstat (limited to 'libm/w_hypot.c')
-rw-r--r-- | libm/w_hypot.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/libm/w_hypot.c b/libm/w_hypot.c new file mode 100644 index 000000000..e547bfd4d --- /dev/null +++ b/libm/w_hypot.c @@ -0,0 +1,34 @@ +/* @(#)w_hypot.c 5.1 93/09/24 */ +/* + * ==================================================== + * 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 hypot(x,y) + */ + +#include <math.h> +#include "math_private.h" + +double +hypot (double x, double y) +{ +#if __UCLIBC_HAS_FENV__ + double z = __ieee754_hypot(x,y); + if(__builtin_expect(!isfinite(z), 0) + && isfinite(x) && isfinite(y) && _LIB_VERSION != _IEEE_) + return __kernel_standard(x, y, 4); /* hypot overflow */ + + return z; +#else + return __ieee754_hypot(x,y); +#endif +} +libm_hidden_def(hypot) |