/*
|
Copyright 2019 Glen Joseph Fernandes
|
(glenjofe@gmail.com)
|
|
Distributed under the Boost Software License, Version 1.0.
|
(http://www.boost.org/LICENSE_1_0.txt)
|
*/
|
#ifndef BOOST_CORE_NOINIT_ADAPTOR_HPP
|
#define BOOST_CORE_NOINIT_ADAPTOR_HPP
|
|
#include <boost/core/allocator_access.hpp>
|
|
namespace boost {
|
|
template<class A>
|
struct noinit_adaptor
|
: A {
|
template<class U>
|
struct rebind {
|
typedef noinit_adaptor<typename allocator_rebind<A, U>::type> other;
|
};
|
|
noinit_adaptor()
|
: A() { }
|
|
#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
|
template<class U>
|
noinit_adaptor(U&& u) BOOST_NOEXCEPT
|
: A(std::forward<U>(u)) { }
|
#else
|
template<class U>
|
noinit_adaptor(const U& u) BOOST_NOEXCEPT
|
: A(u) { }
|
|
template<class U>
|
noinit_adaptor(U& u) BOOST_NOEXCEPT
|
: A(u) { }
|
#endif
|
|
template<class U>
|
noinit_adaptor(const noinit_adaptor<U>& u) BOOST_NOEXCEPT
|
: A(static_cast<const A&>(u)) { }
|
|
template<class U>
|
void construct(U* p) {
|
::new((void*)p) U;
|
}
|
|
#if defined(BOOST_NO_CXX11_ALLOCATOR)
|
template<class U, class V>
|
void construct(U* p, const V& v) {
|
::new((void*)p) U(v);
|
}
|
#endif
|
|
template<class U>
|
void destroy(U* p) {
|
p->~U();
|
}
|
};
|
|
template<class T, class U>
|
inline bool
|
operator==(const noinit_adaptor<T>& lhs,
|
const noinit_adaptor<U>& rhs) BOOST_NOEXCEPT
|
{
|
return static_cast<const T&>(lhs) == static_cast<const U&>(rhs);
|
}
|
|
template<class T, class U>
|
inline bool
|
operator!=(const noinit_adaptor<T>& lhs,
|
const noinit_adaptor<U>& rhs) BOOST_NOEXCEPT
|
{
|
return !(lhs == rhs);
|
}
|
|
template<class A>
|
inline noinit_adaptor<A>
|
noinit_adapt(const A& a) BOOST_NOEXCEPT
|
{
|
return noinit_adaptor<A>(a);
|
}
|
|
} /* boost */
|
|
#endif
|
