/usr/include/libint2/util/cxxstd.h is in libint2-dev 2.3.0~beta3-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 | /*
* This file is a part of Libint.
* Copyright (C) 2004-2014 Edward F. Valeev
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Library General Public License, version 2,
* as published by the Free Software Foundation.
*
* 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 General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this program. If not, see http://www.gnu.org/licenses/.
*
*/
#ifndef _libint2_include_libint2_util_cxxstd_h_
#define _libint2_include_libint2_util_cxxstd_h_
#ifndef __cplusplus
# error "Libint2 requires a C++ compiler"
#endif
#if __cplusplus >= 201402L
# define LIBINT2_CPLUSPLUS_STD 2014
#elif __cplusplus >= 201103L
# define LIBINT2_CPLUSPLUS_STD 2011
#elif __cplusplus >= 199711L
# define LIBINT2_CPLUSPLUS_STD 1998
#else
# define LIBINT2_CPLUSPLUS_STD 0 // unknown standard
#endif
// workaround: standard Intel compiler (not INDE) is not standard conforming
#if defined(__INTEL_COMPILER) && LIBINT2_CPLUSPLUS_STD==0
# ifdef __INTEL_CXX11_MODE__
# undef LIBINT2_CPLUSPLUS_STD
# define LIBINT2_CPLUSPLUS_STD 2011
# endif
#endif
#endif /* header guard */
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