Imported Upstream version 1.57.0upstream/1.57.0

1 files changed, 181 insertions, 0 deletions

diff --git a/boost/smart_ptr/allocate_shared_array.hpp b/boost/smart_ptr/allocate_shared_array.hpp
new file mode 100644
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+++ b/boost/smart_ptr/allocate_shared_array.hpp
@@ -0,0 +1,181 @@
+/*
+ * 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