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worked around missing std::is_trivially_copy_constructible in GCC<=4.9

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This commit is contained in:
joaquintides
2022-11-07 17:41:47 +01:00
parent 5a4071d4f0
commit 1d99854979
1 changed files with 10 additions and 1 deletions
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11
include/boost/unordered/detail/foa.hpp
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@ -21,6 +21,7 @@
#include <boost/core/pointer_traits.hpp>
#include <boost/cstdint.hpp>
#include <boost/predef.h>
#include <boost/type_traits/has_trivial_copy.hpp>
#include <boost/type_traits/is_nothrow_swappable.hpp>
#include <boost/unordered/detail/xmx.hpp>
#include <boost/unordered/hash_traits.hpp>
@ -1528,7 +1529,15 @@ private:
copy_elements_array_from(
x,
std::integral_constant<
bool,std::is_trivially_copy_constructible<value_type>::value>{});
bool,
#if BOOST_WORKAROUND(BOOST_LIBSTDCXX_VERSION,<50000)
/* std::is_trivially_copy_constructible not provided */
boost::has_trivial_copy<value_type>::value
#else
std::is_trivially_copy_constructible<value_type>::value
#endif
>{}
);
}
void copy_elements_array_from(const table& x,std::true_type /* -> memcpy */)