X-Git-Url: http://git.sourceforge.jp/view?p=pf3gnuchains%2Fgcc-fork.git;a=blobdiff_plain;f=libstdc%2B%2B-v3%2Flibmath%2Fstubs.c;h=1968bffe7f9a110670b561aa3e13e4ed766372ca;hp=586fd6db80e579f26e6c0e9ccf5c970dd25ab37c;hb=86d364ccd1c6f478c0774d9128efb2b2055be3c4;hpb=0da6cf03dfa46b0ff3d61fb76c48827e048946cd diff --git a/libstdc++-v3/libmath/stubs.c b/libstdc++-v3/libmath/stubs.c index 586fd6db80e..1968bffe7f9 100644 --- a/libstdc++-v3/libmath/stubs.c +++ b/libstdc++-v3/libmath/stubs.c @@ -1,6 +1,6 @@ /* Stub definitions for libmath subpart of libstdc++. */ -/* Copyright (C) 2001, 2002 Free Software Foundation, Inc. +/* Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc. This file is part of the GNU ISO C++ Library. This library is free software; you can redistribute it and/or modify it under the @@ -108,6 +108,8 @@ float hypotf(float x, float y) { float s = fabsf(x) + fabsf(y); + if (s == 0.0F) + return s; x /= s; y /= s; return s * sqrtf(x * x + y * y); } @@ -118,6 +120,8 @@ double hypot(double x, double y) { double s = fabs(x) + fabs(y); + if (s == 0.0) + return s; x /= s; y /= s; return s * sqrt(x * x + y * y); } @@ -128,6 +132,8 @@ long double hypotl(long double x, long double y) { long double s = fabsl(x) + fabsl(y); + if (s == 0.0L) + return s; x /= s; y /= s; return s * sqrtl(x * x + y * y); }