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pull/836/head
Jeffrey Walton 2019-05-16 22:44:25 -04:00
parent 0418dafd58
commit d8b990a9c8
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GPG Key ID: B36AB348921B1838
1 changed files with 14 additions and 12 deletions
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26
config_cxx.h
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@ -30,23 +30,32 @@
# define __has_feature(x) 0
#endif
// C++11 macro version, https://stackoverflow.com/q/7223991/608639
#if !defined(CRYPTOPP_NO_CXX11)
# if ((_MSC_VER >= 1600) || (__cplusplus >= 201103L)) && !defined(_STLPORT_VERSION)
# define CRYPTOPP_CXX11 1
# endif
#endif
// Hack ahead. Apple's standard library does not have C++'s unique_ptr in C++11. We can't
// test for unique_ptr directly because some of the non-Apple Clangs on OS X fail the same
// way. However, modern standard libraries have <forward_list>, so we test for it instead.
// Thanks to Jonathan Wakely for devising the clever test for modern/ancient versions.
// TODO: test under Xcode 3, where g++ is really g++.
// Hack ahead. Apple's standard library does not have C++'s unique_ptr in C++11.
// We can't test for unique_ptr directly because some of the non-Apple Clangs
// on OS X fail the same way. However, modern standard libraries have
// <forward_list>, so we test for it instead. Thanks to Jonathan Wakely for
// devising the clever test for modern/ancient versions. TODO: test under
// Xcode 3, where g++ is really g++.
#if defined(__APPLE__) && defined(__clang__)
# if !(defined(__has_include) && __has_include(<forward_list>))
# undef CRYPTOPP_CXX11
# endif
#endif
// C++17 macro version, https://stackoverflow.com/q/38456127/608639
#if defined(CRYPTOPP_CXX11) && !defined(CRYPTOPP_NO_CXX17)
# if ((_MSC_VER >= 1900) || (__cplusplus >= 201703L)) && !defined(_STLPORT_VERSION)
# define CRYPTOPP_CXX17 1
# endif
#endif
// ***************** C++11 and above ********************
#if defined(CRYPTOPP_CXX11)
@ -138,13 +147,6 @@
// ***************** C++17 and above ********************
// C++17 macro version, https://stackoverflow.com/q/38456127/608639
#if defined(CRYPTOPP_CXX11) && !defined(CRYPTOPP_NO_CXX17)
# if ((_MSC_VER >= 1900) || (__cplusplus >= 201703L)) && !defined(_STLPORT_VERSION)
# define CRYPTOPP_CXX17 1
# endif
#endif
// C++17 is available
#if defined(CRYPTOPP_CXX17)