30 lines
1.2 KiB
C++
30 lines
1.2 KiB
C++
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/*+
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ARES/HADES/BORG Package -- ./libLSS/tools/checkmem.hpp
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Copyright (C) 2014-2020 Guilhem Lavaux <guilhem.lavaux@iap.fr>
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Copyright (C) 2009-2020 Jens Jasche <jens.jasche@fysik.su.se>
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Additional contributions from:
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Guilhem Lavaux <guilhem.lavaux@iap.fr> (2023)
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+*/
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#ifndef __LIBLSS_CHECKMEM_HPP
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#define __LIBLSS_CHECKMEM_HPP
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/* Stackoverflow: http://stackoverflow.com/questions/257288/is-it-possible-to-write-a-c-template-to-check-for-a-functions-existence
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*/
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#define HAS_MEM_FUNC(func, name) \
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template<typename T, typename Sign> \
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struct name { \
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typedef char yes[1]; \
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typedef char no [2]; \
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template <typename U, U> struct type_check; \
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template <typename _1> static yes &chk(type_check<Sign, &_1::func > *); \
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template <typename > static no &chk(...); \
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static bool const value = sizeof(chk<T>(0)) == sizeof(yes); \
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}
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#endif
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