/* * isinf function * * Copyright 2008 Petr Sumbera * * This library 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 of the License, 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA */ #include "config.h" #include "wine/port.h" #ifndef HAVE_ISINF #ifdef HAVE_IEEEFP_H #include <ieeefp.h> int isinf(double x) { return (!(finite(x) || isnand(x))); } #elif defined(HAVE_FLOAT_H) && defined(HAVE__ISNAN) && defined(HAVE__FINITE) #include <float.h> int isinf(double x) { return (!(_finite(x) || _isnan(x))); } #else #error No isinf() implementation available. #endif #endif /* HAVE_ISINF */