ergo
template_lapack_isnan.h
Go to the documentation of this file.
1 /* Ergo, version 3.4, a program for linear scaling electronic structure
2  * calculations.
3  * Copyright (C) 2014 Elias Rudberg, Emanuel H. Rubensson, and Pawel Salek.
4  *
5  * This program is free software: you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License as published by
7  * the Free Software Foundation, either version 3 of the License, or
8  * (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program. If not, see <http://www.gnu.org/licenses/>.
17  *
18  * Primary academic reference:
19  * Kohn−Sham Density Functional Theory Electronic Structure Calculations
20  * with Linearly Scaling Computational Time and Memory Usage,
21  * Elias Rudberg, Emanuel H. Rubensson, and Pawel Salek,
22  * J. Chem. Theory Comput. 7, 340 (2011),
23  * <http://dx.doi.org/10.1021/ct100611z>
24  *
25  * For further information about Ergo, see <http://www.ergoscf.org>.
26  */
27 
28  /* This file belongs to the template_lapack part of the Ergo source
29  * code. The source files in the template_lapack directory are modified
30  * versions of files originally distributed as CLAPACK, see the
31  * Copyright/license notice in the file template_lapack/COPYING.
32  */
33 
34 
35 #ifndef TEMPLATE_LAPACK_ISNAN_HEADER
36 #define TEMPLATE_LAPACK_ISNAN_HEADER
37 
38 
40 
41 
42 template<class Treal>
44 {
45  /* System generated locals */
46  logical ret_val;
47 
48 
49 /* -- LAPACK auxiliary routine (version 3.2) -- */
50 /* Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd.. */
51 /* November 2006 */
52 
53 /* .. Scalar Arguments .. */
54 /* .. */
55 
56 /* Purpose */
57 /* ======= */
58 
59 /* DISNAN returns .TRUE. if its argument is NaN, and .FALSE. */
60 /* otherwise. To be replaced by the Fortran 2003 intrinsic in the */
61 /* future. */
62 
63 /* Arguments */
64 /* ========= */
65 
66 /* DIN (input) DOUBLE PRECISION */
67 /* Input to test for NaN. */
68 
69 /* ===================================================================== */
70 
71 /* .. External Functions .. */
72 /* .. */
73 /* .. Executable Statements .. */
74  ret_val = template_lapack_laisnan(din, din);
75  return ret_val;
76 } /* disnan_ */
77 
78 #endif
logical template_lapack_isnan(Treal *din)
Definition: template_lapack_isnan.h:43
logical template_lapack_laisnan(Treal *din1, Treal *din2)
Definition: template_lapack_laisnan.h:39
bool logical
Definition: template_blas_common.h:39