/* Test for positive or negative infinity. Copyright (C) 2007-2014 Free Software Foundation, Inc. This program 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, 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this program; if not, see . */ /* Written by Ben Pfaff , 2008. */ #include #include 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; }