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Make IS_TRIVIALLY_CONSTRUCTIBLE consistent on GCC < 5 

std::is_trivially_constructible<T> is equivalent to std::is_trivially_default_constructible<T>
std::has_trivial_default_constructor<T> is the GCC < 5 name for std::is_trivially_default_constructible<T>

std::is_trivial was also used when compiling with clang, due to clang's use of __GNUC__. Test __clang__
to target the intended implementations.
This commit is contained in:
Ben Woosley 2018-08-23 03:17:43 -07:00
parent 271b379e63
commit f1640d093f
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GPG Key ID: 4D8CA4BA18040906
1 changed files with 3 additions and 3 deletions
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6
src/compat.h
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@ -14,10 +14,10 @@
// GCC 4.8 is missing some C++11 type_traits,
// https://www.gnu.org/software/gcc/gcc-5/changes.html
#if defined(__GNUC__) && __GNUC__ < 5
#define IS_TRIVIALLY_CONSTRUCTIBLE std::is_trivial
#if defined(__GNUC__) && !defined(__clang__) && __GNUC__ < 5
#define IS_TRIVIALLY_CONSTRUCTIBLE std::has_trivial_default_constructor
#else
#define IS_TRIVIALLY_CONSTRUCTIBLE std::is_trivially_constructible
#define IS_TRIVIALLY_CONSTRUCTIBLE std::is_trivially_default_constructible
#endif
#ifdef WIN32