Mercurial > gnulib
view lib/isinf.c @ 10287:7a5cfea8469f
Add isinf module.
author | Ben Pfaff <blp@cs.stanford.edu> |
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date | Wed, 23 Jul 2008 21:48:35 -0700 |
parents | |
children | b5e42ef33b49 |
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/* Test for positive or negative infinity. Copyright (C) 2007-2008 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 2, or (at your option) any later version. 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. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ /* Written by Ben Pfaff <blp@gnu.org>, 2008. */ #include <config.h> #include <float.h> int gl_isinff (float x) { return x < -FLT_MAX || x > FLT_MAX; } int gl_isinfd (double x) { return x < -DBL_MAX || x > DBL_MAX; } int gl_isinfl (long double x) { return x < -LDBL_MAX || x > LDBL_MAX; }