diff options
Diffstat (limited to 'libm/w_hypotl.c')
| -rw-r--r-- | libm/w_hypotl.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/libm/w_hypotl.c b/libm/w_hypotl.c new file mode 100644 index 000000000..ebbb1a1c0 --- /dev/null +++ b/libm/w_hypotl.c @@ -0,0 +1,40 @@ +/* w_hypotl.c -- long double version of w_hypot.c. + * Conversion to long double by Ulrich Drepper, + * Cygnus Support, 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 hypotl(x,y) + */ + +#include <math.h> +#include "math_private.h" + +#if !defined __NO_LONG_DOUBLE_MATH +long double +hypotl(long double x, long double y) +{ +# if __UCLIBC_HAS_FENV__ + long double z; + z = (long double) __ieee754_hypot((double) x, (double) y); + if(__builtin_expect(!isfinite(z), 0) + && isfinite(x) && isfinite(y) && _LIB_VERSION != _IEEE_) + return __kernel_standard_l(x, y, 204); /* hypot overflow */ + + return z; +# else + return (long double) __ieee754_hypot((double) x, (double) y); +# endif /* __UCLIBC_HAS_FENV__ */ +} +#endif /* __NO_LONG_DOUBLE_MATH */ |