From c7a58c2edadb8fce84ab2f8b129a87eb19bdc485 Mon Sep 17 00:00:00 2001 From: Bernhard Reutner-Fischer Date: Thu, 25 Sep 2008 19:07:18 +0000 Subject: - add some more math functions (patch from gentoo/solar) --- libm/s_fdim.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 libm/s_fdim.c (limited to 'libm/s_fdim.c') diff --git a/libm/s_fdim.c b/libm/s_fdim.c new file mode 100644 index 000000000..6fdf3c2d6 --- /dev/null +++ b/libm/s_fdim.c @@ -0,0 +1,25 @@ +/* Copyright (C) 2002 by Red Hat, Incorporated. All rights reserved. + * + * Permission to use, copy, modify, and distribute this software + * is freely granted, provided that this notice is preserved. + */ + +#include "math.h" +#include "math_private.h" + +libm_hidden_proto(fdim) +#ifdef __STDC__ + double fdim(double x, double y) +#else + double fdim(x,y) + double x; + double y; +#endif +{ + int c = __fpclassify(x); + if (c == FP_NAN || c == FP_INFINITE) + return HUGE_VAL; + + return x > y ? x - y : 0.0; +} +libm_hidden_def(fdim) -- cgit v1.2.3