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Make static_vector<T,N> trivially relocatable when T is trivially relocatable #263

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Make static_vector<T,N> trivially relocatable when T is trivially relocatable #263

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1 change: 1 addition & 0 deletions doc/Jamfile.v2
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Original file line number Diff line number Diff line change
Expand Up @@ -42,6 +42,7 @@ doxygen autodoc
\"BOOST_COPY_ASSIGN_REF(T)=const T &\" \\
\"BOOST_FWD_REF(a)=a &&\" \\
\"BOOST_CONTAINER_ATTRIBUTE_NODISCARD=[[nodiscard]] \" \\
\"BOOST_CONTAINER_ATTRIBUTE_TRIVIALLY_RELOCATABLE_IF=\" \\
\"BOOST_NORETURN=[[noreturn]] \" \\
\"BOOST_INTRUSIVE_OPTION_CONSTANT(OPTION_NAME, TYPE, VALUE, CONSTANT_NAME) = template<TYPE VALUE> struct OPTION_NAME{};\" \\
\"BOOST_INTRUSIVE_OPTION_TYPE(OPTION_NAME, TYPE, TYPEDEF_EXPR, TYPEDEF_NAME) = template<class TYPE> struct OPTION_NAME{};\" \\
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8 changes: 8 additions & 0 deletions include/boost/container/detail/type_traits.hpp
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Expand Up @@ -68,6 +68,14 @@ using ::boost::move_detail::natN;
using ::boost::move_detail::max_align_t;
using ::boost::move_detail::is_convertible;

// TODO: Move this trait into <boost/move/detail/type_traits.hpp>

#if __cpp_lib_trivially_relocatable
using ::std::is_trivially_relocatable;
#else
template <class T> struct is_trivially_relocatable : std::is_trivially_copyable<T> {};
#endif

} //namespace dtl {
} //namespace container {
} //namespace boost {
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2 changes: 1 addition & 1 deletion include/boost/container/static_vector.hpp
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Expand Up @@ -149,7 +149,7 @@ struct get_static_vector_allocator
//!@tparam Options A type produced from \c boost::container::static_vector_options. If no option
//! is specified, by default throw_on_overflow<true> option is set.
template <typename T, std::size_t Capacity, class Options BOOST_CONTAINER_DOCONLY(= void) >
class static_vector
class BOOST_CONTAINER_ATTRIBUTE_TRIVIALLY_RELOCATABLE_IF(dtl::is_trivially_relocatable<T>::value) static_vector
: public vector<T, typename dtl::get_static_vector_allocator< T, Capacity, Options>::type>
{
public:
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