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Support C++03 implementations that require reference and const_pointer

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This commit is contained in:
Glen Fernandes
2019-04-27 02:31:09 -04:00
parent 5a549b8b22
commit 151f2cf645
3 changed files with 95 additions and 3 deletions
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36
include/boost/core/default_allocator.hpp
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@@ -12,6 +12,12 @@ Distributed under the Boost Software License, Version 1.0.
#include <new>
#include <climits>
#if defined(BOOST_NO_CXX11_ALLOCATOR)
#define BOOST_CORE_NO_CXX11_ALLOCATOR
#elif defined(BOOST_LIBSTDCXX_VERSION) && BOOST_LIBSTDCXX_VERSION < 60000
#define BOOST_CORE_NO_CXX11_ALLOCATOR
#endif
namespace boost {
#if defined(BOOST_NO_EXCEPTIONS)
@@ -35,10 +41,28 @@ struct true_type {
}
};
template<class T>
struct add_reference {
typedef T& type;
};
template<>
struct add_reference<void> {
typedef void type;
};
template<>
struct add_reference<const void> {
typedef const void type;
};
template<class T>
struct default_allocator {
typedef T value_type;
typedef T* pointer;
typedef const T* const_pointer;
typedef typename add_reference<T>::type reference;
typedef typename add_reference<const T>::type const_reference;
typedef std::size_t size_type;
typedef std::ptrdiff_t difference_type;
typedef true_type propagate_on_container_move_assignment;
@@ -97,6 +121,18 @@ struct default_allocator {
::operator delete(p, std::nothrow);
}
#endif
#if defined(BOOST_CORE_NO_CXX11_ALLOCATOR)
template<class U, class V>
void construct(U* p, const V& v) {
::new(p) U(v);
}
template<class U>
void destroy(U* p) {
p->~U();
}
#endif
};
template<class T, class U>