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Add allocate_shared and make_shared for shared_ptr arrays of runtime size. Fulfills need for allocate_shared_array and make_shared_array.

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[SVN r81219]
This commit is contained in:
Glen Fernandes
2012-11-06 14:17:32 +00:00
parent 2ba7b6b99b
commit 6662ae7242
13 changed files with 878 additions and 0 deletions
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include/boost/smart_ptr/make_shared_array.hpp
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/*
* Copyright (c) 2012 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_MAKE_SHARED_ARRAY_HPP
#define BOOST_SMART_PTR_MAKE_SHARED_ARRAY_HPP
#include <boost/shared_ptr.hpp>
#include <boost/smart_ptr/detail/array_deleter.hpp>
#include <boost/smart_ptr/detail/make_array_helper.hpp>
#include <boost/smart_ptr/detail/sp_if_array.hpp>
#include <boost/type_traits/remove_cv.hpp>
namespace boost {
template<typename T>
inline typename detail::sp_if_array<T>::type
make_shared(std::size_t size) {
typedef typename remove_cv<shared_ptr<T>::element_type>::type T1;
T1* p1 = 0;
detail::make_array_helper<T1> a1(size, &p1);
detail::array_deleter<T1> d1;
shared_ptr<T> s1(p1, d1, a1);
detail::array_deleter<T1>* d2;
d2 = get_deleter<detail::array_deleter<T1> >(s1);
d2->construct(p1, size);
return shared_ptr<T>(s1, p1);
}
#if defined(BOOST_HAS_VARIADIC_TMPL) && defined(BOOST_HAS_RVALUE_REFS)
template<typename T, typename... Args>
inline typename detail::sp_if_array<T>::type
make_shared(std::size_t size, Args&&... args) {
typedef typename remove_cv<shared_ptr<T>::element_type>::type T1;
T1* p1 = 0;
detail::make_array_helper<T1> a1(size, &p1);
detail::array_deleter<T1> d1;
shared_ptr<T> s1(p1, d1, a1);
detail::array_deleter<T1>* d2;
d2 = get_deleter<detail::array_deleter<T1> >(s1);
d2->construct(p1, size, std::forward<Args>(args)...);
return shared_ptr<T>(s1, p1);
}
#endif
template<typename T>
inline typename detail::sp_if_array<T>::type
make_shared_noinit(std::size_t size) {
typedef typename remove_cv<shared_ptr<T>::element_type>::type T1;
T1* p1 = 0;
detail::make_array_helper<T1> a1(size, &p1);
detail::array_deleter<T1> d1;
shared_ptr<T> s1(p1, d1, a1);
detail::array_deleter<T1>* d2;
d2 = get_deleter<detail::array_deleter<T1> >(s1);
d2->construct_noinit(p1, size);
return shared_ptr<T>(s1, p1);
}
}
#endif