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PATH: opt / cpanel / ea-ruby27 / src / passenger-release-6.1.2 / src / cxx_supportlib / vendor-modified / boost / core

/*
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 {
    typedef void _default_construct_destroy;

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();
        (void)p;
    }
};

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

[-] ref.hpp [edit]
[-] default_allocator.hpp [edit]
[-] allocator_access.hpp [edit]
[-] no_exceptions_support.hpp [edit]
[-] uncaught_exceptions.hpp [edit]
[-] invoke_swap.hpp [edit]
[-] quick_exit.hpp [edit]
[-] launder.hpp [edit]
[-] swap.hpp [edit]
[-] enable_if.hpp [edit]
[-] first_scalar.hpp [edit]
[-] memory_resource.hpp [edit]
[-] make_span.hpp [edit]
[-] scoped_enum.hpp [edit]
[-] exchange.hpp [edit]
[-] cmath.hpp [edit]
[-] lightweight_test_trait.hpp [edit]
[-] max_align.hpp [edit]
[-] demangle.hpp [edit]
[-] noinit_adaptor.hpp [edit]
[-] empty_value.hpp [edit]
[+] ..
[-] underlying_type.hpp [edit]
[-] null_deleter.hpp [edit]
[-] data.hpp [edit]
[-] allocator_traits.hpp [edit]
[-] is_same.hpp [edit]
[-] verbose_terminate_handler.hpp [edit]
[-] fclose_deleter.hpp [edit]
[-] span.hpp [edit]
[-] lightweight_test.hpp [edit]
[-] use_default.hpp [edit]
[-] alignof.hpp [edit]
[-] size.hpp [edit]
[-] checked_delete.hpp [edit]
[-] typeinfo.hpp [edit]
[-] nvp.hpp [edit]
[-] serialization.hpp [edit]
[-] snprintf.hpp [edit]
[-] type_name.hpp [edit]
[-] addressof.hpp [edit]
[-] explicit_operator_bool.hpp [edit]
[-] yield_primitives.hpp [edit]
[-] pointer_in_range.hpp [edit]
[+] detail
[-] pointer_traits.hpp [edit]
[-] identity.hpp [edit]
[-] alloc_construct.hpp [edit]
[-] ignore_unused.hpp [edit]
[-] bit.hpp [edit]
[-] noncopyable.hpp [edit]
[-] functor.hpp [edit]