00001 /* Ergo, version 3.7, a program for linear scaling electronic structure 00002 * calculations. 00003 * Copyright (C) 2018 Elias Rudberg, Emanuel H. Rubensson, Pawel Salek, 00004 * and Anastasia Kruchinina. 00005 * 00006 * This program is free software: you can redistribute it and/or modify 00007 * it under the terms of the GNU General Public License as published by 00008 * the Free Software Foundation, either version 3 of the License, or 00009 * (at your option) any later version. 00010 * 00011 * This program is distributed in the hope that it will be useful, 00012 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00014 * GNU General Public License for more details. 00015 * 00016 * You should have received a copy of the GNU General Public License 00017 * along with this program. If not, see <http://www.gnu.org/licenses/>. 00018 * 00019 * Primary academic reference: 00020 * Ergo: An open-source program for linear-scaling electronic structure 00021 * calculations, 00022 * Elias Rudberg, Emanuel H. Rubensson, Pawel Salek, and Anastasia 00023 * Kruchinina, 00024 * SoftwareX 7, 107 (2018), 00025 * <http://dx.doi.org/10.1016/j.softx.2018.03.005> 00026 * 00027 * For further information about Ergo, see <http://www.ergoscf.org>. 00028 */ 00029 00030 /* This file belongs to the template_lapack part of the Ergo source 00031 * code. The source files in the template_lapack directory are modified 00032 * versions of files originally distributed as CLAPACK, see the 00033 * Copyright/license notice in the file template_lapack/COPYING. 00034 */ 00035 00036 00037 #ifndef TEMPLATE_LAPACK_ISNAN_HEADER 00038 #define TEMPLATE_LAPACK_ISNAN_HEADER 00039 00040 00041 #include "template_lapack_laisnan.h" 00042 00043 00044 template<class Treal> 00045 logical template_lapack_isnan(Treal *din) 00046 { 00047 /* System generated locals */ 00048 logical ret_val; 00049 00050 00051 /* -- LAPACK auxiliary routine (version 3.2) -- */ 00052 /* Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd.. */ 00053 /* November 2006 */ 00054 00055 /* .. Scalar Arguments .. */ 00056 /* .. */ 00057 00058 /* Purpose */ 00059 /* ======= */ 00060 00061 /* DISNAN returns .TRUE. if its argument is NaN, and .FALSE. */ 00062 /* otherwise. To be replaced by the Fortran 2003 intrinsic in the */ 00063 /* future. */ 00064 00065 /* Arguments */ 00066 /* ========= */ 00067 00068 /* DIN (input) DOUBLE PRECISION */ 00069 /* Input to test for NaN. */ 00070 00071 /* ===================================================================== */ 00072 00073 /* .. External Functions .. */ 00074 /* .. */ 00075 /* .. Executable Statements .. */ 00076 ret_val = template_lapack_laisnan(din, din); 00077 return ret_val; 00078 } /* disnan_ */ 00079 00080 #endif