From a2be5f0c15218b0177d73b17d9bcb7589965d685 Mon Sep 17 00:00:00 2001 From: peter Date: Sun, 1 Jun 2008 00:03:21 +0000 Subject: Reorganize the gcc vendor import work area. This flattens out a bunch of unnecessary path components that are relics of cvs2svn. (These are directory moves) --- libstdc++/libmath/signbitl.c | 48 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 libstdc++/libmath/signbitl.c (limited to 'libstdc++/libmath/signbitl.c') diff --git a/libstdc++/libmath/signbitl.c b/libstdc++/libmath/signbitl.c new file mode 100644 index 0000000..52cbfba --- /dev/null +++ b/libstdc++/libmath/signbitl.c @@ -0,0 +1,48 @@ +/* Return nonzero value if number is negative. */ + +/* Copyright (C) 1997, 1998, 1999 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 + terms of the GNU General Public License as published by the + Free Software Foundation; either version 2, or (at your option) + any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License along + with this library; see the file COPYING. If not, write to the Free + Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, + USA. + + As a special exception, you may use this file as part of a free software + library without restriction. Specifically, if other files instantiate + templates or use macros or inline functions from this file, or you compile + this file and link it with other files to produce an executable, this + file does not by itself cause the resulting executable to be covered by + the GNU General Public License. This exception does not however + invalidate any other reasons why the executable file might be covered by + the GNU General Public License. */ + +#include +#include +#include "mathconf.h" + +int +__signbitl (long double x) +{ +#if LDBL_MANT_DIG == 113 + Int64_t msw; + + GET_LDOUBLE_MSW64 (msw, x); + return msw < 0; +#else + Int32_t e; + + GET_LDOUBLE_EXP (e, x); + return e & 0x8000; +#endif +} -- cgit v1.1