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Diffstat (limited to 'math/w_hypot_compat.c')
| -rw-r--r-- | math/w_hypot_compat.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/math/w_hypot_compat.c b/math/w_hypot_compat.c new file mode 100644 index 0000000000..7c662c8e40 --- /dev/null +++ b/math/w_hypot_compat.c @@ -0,0 +1,35 @@ +/* @(#)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) +{ + 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; +} +weak_alias (__hypot, hypot) +#ifdef NO_LONG_DOUBLE +strong_alias (__hypot, __hypotl) +weak_alias (__hypot, hypotl) +#endif |