WSJT-X/boost/smart_ptr/allocate_shared_array.hpp
Bill Somerville 4ebe6417a5 Squashed 'boost/' content from commit b4feb19f2
git-subtree-dir: boost
git-subtree-split: b4feb19f287ee92d87a9624b5d36b7cf46aeadeb
2018-06-09 21:48:32 +01:00

182 lines
6.4 KiB
C++

/*
* Copyright (c) 2012-2014 Glen Joseph Fernandes
* glenfe at live dot com
*
* Distributed under the Boost Software License,
* Version 1.0. (See accompanying file LICENSE_1_0.txt
* or copy at http://boost.org/LICENSE_1_0.txt)
*/
#ifndef BOOST_SMART_PTR_ALLOCATE_SHARED_ARRAY_HPP
#define BOOST_SMART_PTR_ALLOCATE_SHARED_ARRAY_HPP
#include <boost/smart_ptr/detail/array_count_impl.hpp>
#include <boost/smart_ptr/detail/sp_if_array.hpp>
namespace boost {
template<class T, class A>
inline typename boost::detail::sp_if_array<T>::type
allocate_shared(const A& allocator, std::size_t size) {
typedef typename boost::detail::array_inner<T>::type T1;
typedef typename boost::detail::array_base<T1>::type T2;
typedef boost::detail::ms_init_tag R1;
typedef boost::detail::as_allocator<A, T, R1> A1;
typedef boost::detail::ms_in_allocator_tag D1;
std::size_t n1 = size * boost::detail::array_total<T1>::size;
T1* p1 = 0;
T2* p2 = 0;
D1 d1;
A1 a1(allocator, size, &p2);
shared_ptr<T> s1(p1, d1, a1);
A1* a2 = static_cast<A1*>(s1._internal_get_untyped_deleter());
a2->set(0);
#if !defined(BOOST_NO_CXX11_ALLOCATOR)
boost::detail::as_init(allocator, p2, n1);
#else
boost::detail::ms_init(p2, n1);
#endif
a2->set(p2);
p1 = reinterpret_cast<T1*>(p2);
return shared_ptr<T>(s1, p1);
}
template<class T, class A>
inline typename boost::detail::sp_if_size_array<T>::type
allocate_shared(const A& allocator) {
typedef typename boost::detail::array_inner<T>::type T1;
typedef typename boost::detail::array_base<T1>::type T2;
typedef boost::detail::ms_init_tag R1;
typedef boost::detail::as_allocator<A, T, R1> A1;
typedef boost::detail::ms_in_allocator_tag D1;
enum {
N = boost::detail::array_total<T>::size
};
T1* p1 = 0;
T2* p2 = 0;
D1 d1;
A1 a1(allocator, &p2);
shared_ptr<T> s1(p1, d1, a1);
A1* a2 = static_cast<A1*>(s1._internal_get_untyped_deleter());
a2->set(0);
#if !defined(BOOST_NO_CXX11_ALLOCATOR)
boost::detail::as_init(allocator, p2, N);
#else
boost::detail::ms_init(p2, N);
#endif
a2->set(p2);
p1 = reinterpret_cast<T1*>(p2);
return shared_ptr<T>(s1, p1);
}
template<class T, class A>
inline typename boost::detail::sp_if_array<T>::type
allocate_shared(const A& allocator, std::size_t size,
const typename boost::detail::array_inner<T>::type& value) {
typedef typename boost::detail::array_inner<T>::type T1;
typedef typename boost::detail::array_base<T1>::type T2;
typedef const T2 T3;
typedef boost::detail::ms_init_tag R1;
typedef boost::detail::as_allocator<A, T, R1> A1;
typedef boost::detail::ms_in_allocator_tag D1;
enum {
M = boost::detail::array_total<T1>::size
};
std::size_t n1 = M * size;
T1* p1 = 0;
T2* p2 = 0;
T3* p3 = reinterpret_cast<T3*>(&value);
D1 d1;
A1 a1(allocator, size, &p2);
shared_ptr<T> s1(p1, d1, a1);
A1* a2 = static_cast<A1*>(s1._internal_get_untyped_deleter());
a2->set(0);
#if !defined(BOOST_NO_CXX11_ALLOCATOR)
boost::detail::as_init<T2, A, M>(allocator, p2, n1, p3);
#else
boost::detail::ms_init<T2, M>(p2, n1, p3);
#endif
a2->set(p2);
p1 = reinterpret_cast<T1*>(p2);
return shared_ptr<T>(s1, p1);
}
template<class T, class A>
inline typename boost::detail::sp_if_size_array<T>::type
allocate_shared(const A& allocator,
const typename boost::detail::array_inner<T>::type& value) {
typedef typename boost::detail::array_inner<T>::type T1;
typedef typename boost::detail::array_base<T1>::type T2;
typedef const T2 T3;
typedef boost::detail::ms_init_tag R1;
typedef boost::detail::as_allocator<A, T, R1> A1;
typedef boost::detail::ms_in_allocator_tag D1;
enum {
N = boost::detail::array_total<T>::size,
M = boost::detail::array_total<T1>::size
};
T1* p1 = 0;
T2* p2 = 0;
T3* p3 = reinterpret_cast<T3*>(&value);
D1 d1;
A1 a1(allocator, &p2);
shared_ptr<T> s1(p1, d1, a1);
A1* a2 = static_cast<A1*>(s1._internal_get_untyped_deleter());
a2->set(0);
#if !defined(BOOST_NO_CXX11_ALLOCATOR)
boost::detail::as_init<T2, A, M>(allocator, p2, N, p3);
#else
boost::detail::ms_init<T2, M>(p2, N, p3);
#endif
a2->set(p2);
p1 = reinterpret_cast<T1*>(p2);
return shared_ptr<T>(s1, p1);
}
template<class T, class A>
inline typename boost::detail::sp_if_array<T>::type
allocate_shared_noinit(const A& allocator, std::size_t size) {
typedef typename boost::detail::array_inner<T>::type T1;
typedef typename boost::detail::array_base<T1>::type T2;
typedef boost::detail::ms_noinit_tag R1;
typedef boost::detail::as_allocator<A, T, R1> A1;
typedef boost::detail::ms_in_allocator_tag D1;
std::size_t n1 = size * boost::detail::array_total<T1>::size;
T1* p1 = 0;
T2* p2 = 0;
D1 d1;
A1 a1(allocator, size, &p2);
shared_ptr<T> s1(p1, d1, a1);
A1* a2 = static_cast<A1*>(s1._internal_get_untyped_deleter());
a2->set(0);
boost::detail::ms_noinit(p2, n1);
a2->set(p2);
p1 = reinterpret_cast<T1*>(p2);
return shared_ptr<T>(s1, p1);
}
template<class T, class A>
inline typename boost::detail::sp_if_size_array<T>::type
allocate_shared_noinit(const A& allocator) {
typedef typename boost::detail::array_inner<T>::type T1;
typedef typename boost::detail::array_base<T1>::type T2;
typedef boost::detail::ms_noinit_tag R1;
typedef boost::detail::as_allocator<A, T, R1> A1;
typedef boost::detail::ms_in_allocator_tag D1;
enum {
N = boost::detail::array_total<T>::size
};
T1* p1 = 0;
T2* p2 = 0;
D1 d1;
A1 a1(allocator, &p2);
shared_ptr<T> s1(p1, d1, a1);
A1* a2 = static_cast<A1*>(s1._internal_get_untyped_deleter());
a2->set(0);
boost::detail::ms_noinit(p2, N);
a2->set(p2);
p1 = reinterpret_cast<T1*>(p2);
return shared_ptr<T>(s1, p1);
}
}
#endif