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Editing: ptr_array.hpp
// // Boost.Pointer Container // // Copyright Thorsten Ottosen 2003-2005. Use, modification and // distribution is subject to the Boost Software License, Version // 1.0. (See accompanying file LICENSE_1_0.txt or copy at // http://www.boost.org/LICENSE_1_0.txt) // // For more information, see http://www.boost.org/libs/ptr_container/ // #ifndef BOOST_PTR_CONTAINER_PTR_ARRAY_HPP #define BOOST_PTR_CONTAINER_PTR_ARRAY_HPP #if defined(_MSC_VER) && (_MSC_VER >= 1200) # pragma once #endif #include <boost/array.hpp> #include <boost/static_assert.hpp> #include <boost/ptr_container/ptr_sequence_adapter.hpp> #include <boost/ptr_container/detail/ptr_container_disable_deprecated.hpp> #if defined(BOOST_PTR_CONTAINER_DISABLE_DEPRECATED) #pragma GCC diagnostic push #pragma GCC diagnostic ignored "-Wdeprecated-declarations" #endif namespace boost { namespace ptr_container_detail { template < class T, size_t N, class Allocator = int // dummy > class ptr_array_impl : public boost::array<T,N> { public: typedef Allocator allocator_type; ptr_array_impl( Allocator /*a*/ = Allocator() ) { this->assign( 0 ); } ptr_array_impl( size_t, T*, Allocator /*a*/ = Allocator() ) { this->assign( 0 ); } }; } template < class T, size_t N, class CloneAllocator = heap_clone_allocator > class ptr_array : public ptr_sequence_adapter< T, ptr_container_detail::ptr_array_impl< typename ptr_container_detail::void_ptr<T>::type,N>, CloneAllocator > { private: typedef ptr_sequence_adapter< T, ptr_container_detail::ptr_array_impl< typename ptr_container_detail::void_ptr<T>::type,N>, CloneAllocator > base_class; typedef BOOST_DEDUCED_TYPENAME remove_nullable<T>::type U; typedef ptr_array<T,N,CloneAllocator> this_type; public: typedef std::size_t size_type; typedef U* value_type; typedef U* pointer; typedef U& reference; typedef const U& const_reference; typedef BOOST_DEDUCED_TYPENAME base_class::auto_type auto_type; public: // constructors ptr_array() : base_class() { } ptr_array( const ptr_array& r ) { size_t i = 0; for( ; i != N; ++i ) this->base()[i] = this->null_policy_allocate_clone( static_cast<const U*>( &r[i] ) ); } template< class U > ptr_array( const ptr_array<U,N>& r ) { size_t i = 0; for( ; i != N; ++i ) this->base()[i] = this->null_policy_allocate_clone( static_cast<const T*>( &r[i] ) ); } #ifndef BOOST_NO_AUTO_PTR explicit ptr_array( std::auto_ptr<this_type> r ) : base_class( r ) { } #endif #ifndef BOOST_NO_CXX11_SMART_PTR explicit ptr_array( std::unique_ptr<this_type> r ) : base_class( std::move( r ) ) { } #endif ptr_array& operator=( ptr_array r ) { this->swap( r ); return *this; } #ifndef BOOST_NO_AUTO_PTR ptr_array& operator=( std::auto_ptr<this_type> r ) { base_class::operator=(r); return *this; } #endif #ifndef BOOST_NO_CXX11_SMART_PTR ptr_array& operator=( std::unique_ptr<this_type> r ) { base_class::operator=(std::move(r)); return *this; } #endif #ifndef BOOST_NO_AUTO_PTR std::auto_ptr<this_type> release() { std::auto_ptr<this_type> ptr( new this_type ); this->swap( *ptr ); return ptr; } std::auto_ptr<this_type> clone() const { std::auto_ptr<this_type> pa( new this_type ); clone_array_elements( *pa ); return pa; } #else std::unique_ptr<this_type> release() { std::unique_ptr<this_type> ptr( new this_type ); this->swap( *ptr ); return ptr; } std::unique_ptr<this_type> clone() const { std::unique_ptr<this_type> pa( new this_type ); clone_array_elements( *pa ); return pa; } #endif private: void clone_array_elements( this_type &pa ) const { for( size_t i = 0; i != N; ++i ) { if( !this->is_null(i) ) pa.replace( i, pa.null_policy_allocate_clone( &(*this)[i] ) ); } } private: // hide some members using base_class::insert; using base_class::erase; using base_class::push_back; using base_class::push_front; using base_class::pop_front; using base_class::pop_back; using base_class::transfer; using base_class::get_allocator; public: // compile-time interface template< size_t idx > auto_type replace( U* r ) // strong { BOOST_STATIC_ASSERT( idx < N ); this->enforce_null_policy( r, "Null pointer in 'ptr_array::replace()'" ); auto_type res( static_cast<U*>(this->base()[idx]), *this ); // nothrow this->base()[idx] = r; // nothrow return boost::ptr_container::move(res); // nothrow } #ifndef BOOST_NO_AUTO_PTR template< size_t idx, class V > auto_type replace( std::auto_ptr<V> r ) { return replace<idx>( r.release() ); } #endif #ifndef BOOST_NO_CXX11_SMART_PTR template< size_t idx, class V > auto_type replace( std::unique_ptr<V> r ) { return replace<idx>( r.release() ); } #endif auto_type replace( size_t idx, U* r ) // strong { this->enforce_null_policy( r, "Null pointer in 'ptr_array::replace()'" ); auto_type ptr( r, *this ); BOOST_PTR_CONTAINER_THROW_EXCEPTION( idx >= N, bad_index, "'replace()' aout of bounds" ); auto_type res( static_cast<U*>(this->base()[idx]), *this ); // nothrow this->base()[idx] = ptr.release(); // nothrow return boost::ptr_container::move(res); // nothrow } #ifndef BOOST_NO_AUTO_PTR template< class V > auto_type replace( size_t idx, std::auto_ptr<V> r ) { return replace( idx, r.release() ); } #endif #ifndef BOOST_NO_CXX11_SMART_PTR template< class V > auto_type replace( size_t idx, std::unique_ptr<V> r ) { return replace( idx, r.release() ); } #endif using base_class::at; template< size_t idx > T& at() { BOOST_STATIC_ASSERT( idx < N ); return (*this)[idx]; } template< size_t idx > const T& at() const { BOOST_STATIC_ASSERT( idx < N ); return (*this)[idx]; } bool is_null( size_t idx ) const { return base_class::is_null(idx); } template< size_t idx > bool is_null() const { BOOST_STATIC_ASSERT( idx < N ); return this->base()[idx] == 0; } }; ////////////////////////////////////////////////////////////////////////////// // clonability template< typename T, size_t size, typename CA > inline ptr_array<T,size,CA>* new_clone( const ptr_array<T,size,CA>& r ) { return r.clone().release(); } ///////////////////////////////////////////////////////////////////////// // swap template< typename T, size_t size, typename CA > inline void swap( ptr_array<T,size,CA>& l, ptr_array<T,size,CA>& r ) { l.swap(r); } } #if defined(BOOST_PTR_CONTAINER_DISABLE_DEPRECATED) #pragma GCC diagnostic pop #endif #endif
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