feedc0de/boost_function
1
0
Fork 0
forked from boostorg/function
Code Pull Requests Activity

GCC 4.x doesn't have std::is_trivially_copy_constructible

Browse Source
This commit is contained in:
Peter Dimov
2024-05-11 21:51:45 +03:00
parent 4f89a283fd
commit 35f0c2a681
1 changed files with 14 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
include/boost/function/function_template.hpp
View File

@ -599,6 +599,18 @@ namespace boost {
typedef T1 second_argument_type; typedef T1 second_argument_type;
}; };
#if defined( BOOST_LIBSTDCXX_VERSION ) && BOOST_LIBSTDCXX_VERSION < 50000
template<class T> struct is_trivially_copy_constructible: std::integral_constant<bool, std::is_copy_constructible<T>::value && std::has_trivial_copy_constructor<T>::value>
{
};
#else
using std::is_trivially_copy_constructible;
#endif
} // end namespace function } // end namespace function
} // end namespace detail } // end namespace detail
@ -834,7 +846,7 @@ namespace boost {
if (stored_vtable.assign_to(std::move(f), functor)) { if (stored_vtable.assign_to(std::move(f), functor)) {
std::size_t value = reinterpret_cast<std::size_t>(&stored_vtable.base); std::size_t value = reinterpret_cast<std::size_t>(&stored_vtable.base);
// coverity[pointless_expression]: suppress coverity warnings on apparant if(const). // coverity[pointless_expression]: suppress coverity warnings on apparant if(const).
if (std::is_trivially_copy_constructible<Functor>::value && if (boost::detail::function::is_trivially_copy_constructible<Functor>::value &&
std::is_trivially_destructible<Functor>::value && std::is_trivially_destructible<Functor>::value &&
boost::detail::function::function_allows_small_object_optimization<Functor>::value) boost::detail::function::function_allows_small_object_optimization<Functor>::value)
value |= static_cast<std::size_t>(0x01); value |= static_cast<std::size_t>(0x01);
@ -868,7 +880,7 @@ namespace boost {
if (stored_vtable.assign_to_a(std::move(f), functor, a)) { if (stored_vtable.assign_to_a(std::move(f), functor, a)) {
std::size_t value = reinterpret_cast<std::size_t>(&stored_vtable.base); std::size_t value = reinterpret_cast<std::size_t>(&stored_vtable.base);
// coverity[pointless_expression]: suppress coverity warnings on apparant if(const). // coverity[pointless_expression]: suppress coverity warnings on apparant if(const).
if (std::is_trivially_copy_constructible<Functor>::value && if (boost::detail::function::is_trivially_copy_constructible<Functor>::value &&
std::is_trivially_destructible<Functor>::value && std::is_trivially_destructible<Functor>::value &&
boost::detail::function::function_allows_small_object_optimization<Functor>::value) boost::detail::function::function_allows_small_object_optimization<Functor>::value)
value |= static_cast<std::size_t>(0x01); value |= static_cast<std::size_t>(0x01);