X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Ffloorl.c;h=54ffb679ca2c14ad2cdabcab3ea1027389dda178;hb=43593319b31e6b0175b8eec4433bac744959822d;hp=0f1f0cb2b8b57dab48c40741532ce754c0d241f6;hpb=5657b2536d242966c41c268b9ab4fe8df727bb13;p=gnulib.git diff --git a/lib/floorl.c b/lib/floorl.c index 0f1f0cb2b..54ffb679c 100644 --- a/lib/floorl.c +++ b/lib/floorl.c @@ -1,45 +1,37 @@ -/* Emulation for floorl. - Contributed by Paolo Bonzini +/* Round towards negative infinity. + Copyright (C) 2007, 2009-2013 Free Software Foundation, Inc. - Copyright 2002, 2003 Free Software Foundation, Inc. + This program 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 3 of the License, or + (at your option) any later version. - This file is part of gnulib. + This program 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. - gnulib is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published - by the Free Software Foundation; either version 2.1, or (at your option) - any later version. + You should have received a copy of the GNU General Public License + along with this program. If not, see . */ - gnulib 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 Lesser General Public - License for more details. +/* Written by Bruno Haible , 2007. */ - You should have received a copy of the GNU Lesser General Public License - along with gnulib; see the file COPYING.LIB. If not, write to the Free - Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, - USA. - */ +#include -#include +#if HAVE_SAME_LONG_DOUBLE_AS_DOUBLE -#include "mathl.h" - -/* To compute the integer part of X, sum a big enough - integer so that the precision of the floating point - number is exactly 1. */ +/* Specification. */ +# include long double -floorl(long double x) +floorl (long double x) { - long double y; - if (x < 0.0L) - y = -(1.0L / LDBL_EPSILON - x - 1.0 / LDBL_EPSILON); - else - y = 1.0L / LDBL_EPSILON + x - 1.0 / LDBL_EPSILON; - - if (y > x) - return y - 1.0L; - else - return y; + return floor (x); } + +#else + +# define USE_LONG_DOUBLE +# include "floor.c" + +#endif