ergo
template_lapack_isnan.h
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1/* Ergo, version 3.8, a program for linear scaling electronic structure
2 * calculations.
3 * Copyright (C) 2019 Elias Rudberg, Emanuel H. Rubensson, Pawel Salek,
4 * and Anastasia Kruchinina.
5 *
6 * This program is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
18 *
19 * Primary academic reference:
20 * Ergo: An open-source program for linear-scaling electronic structure
21 * calculations,
22 * Elias Rudberg, Emanuel H. Rubensson, Pawel Salek, and Anastasia
23 * Kruchinina,
24 * SoftwareX 7, 107 (2018),
25 * <http://dx.doi.org/10.1016/j.softx.2018.03.005>
26 *
27 * For further information about Ergo, see <http://www.ergoscf.org>.
28 */
29
30 /* This file belongs to the template_lapack part of the Ergo source
31 * code. The source files in the template_lapack directory are modified
32 * versions of files originally distributed as CLAPACK, see the
33 * Copyright/license notice in the file template_lapack/COPYING.
34 */
35
36
37#ifndef TEMPLATE_LAPACK_ISNAN_HEADER
38#define TEMPLATE_LAPACK_ISNAN_HEADER
39
40
42
43
44template<class Treal>
46{
47 /* System generated locals */
48 logical ret_val;
49
50
51/* -- LAPACK auxiliary routine (version 3.2) -- */
52/* Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd.. */
53/* November 2006 */
54
55/* .. Scalar Arguments .. */
56/* .. */
57
58/* Purpose */
59/* ======= */
60
61/* DISNAN returns .TRUE. if its argument is NaN, and .FALSE. */
62/* otherwise. To be replaced by the Fortran 2003 intrinsic in the */
63/* future. */
64
65/* Arguments */
66/* ========= */
67
68/* DIN (input) DOUBLE PRECISION */
69/* Input to test for NaN. */
70
71/* ===================================================================== */
72
73/* .. External Functions .. */
74/* .. */
75/* .. Executable Statements .. */
76 ret_val = template_lapack_laisnan(din, din);
77 return ret_val;
78} /* disnan_ */
79
80#endif
bool logical
Definition: template_blas_common.h:41
logical template_lapack_isnan(Treal *din)
Definition: template_lapack_isnan.h:45
logical template_lapack_laisnan(Treal *din1, Treal *din2)
Definition: template_lapack_laisnan.h:41