1 #ifndef BOOST_SMART_PTR_SCOPED_ARRAY_HPP_INCLUDED
2 #define BOOST_SMART_PTR_SCOPED_ARRAY_HPP_INCLUDED
4 // (C) Copyright Greg Colvin and Beman Dawes 1998, 1999.
5 // Copyright (c) 2001, 2002 Peter Dimov
7 // Distributed under the Boost Software License, Version 1.0. (See
8 // accompanying file LICENSE_1_0.txt or copy at
9 // http://www.boost.org/LICENSE_1_0.txt)
11 // http://www.boost.org/libs/smart_ptr/scoped_array.htm
14 #include <boost/assert.hpp>
15 #include <boost/checked_delete.hpp>
16 #include <boost/config.hpp> // in case ptrdiff_t not in std
18 #include <boost/detail/workaround.hpp>
20 #include <cstddef> // for std::ptrdiff_t
27 #if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
29 void sp_array_constructor_hook(void * p);
30 void sp_array_destructor_hook(void * p);
34 // scoped_array extends scoped_ptr to arrays. Deletion of the array pointed to
35 // is guaranteed, either on destruction of the scoped_array or via an explicit
36 // reset(). Use shared_array or std::vector if your needs are more complex.
38 template<class T> class scoped_array // noncopyable
44 scoped_array(scoped_array const &);
45 scoped_array & operator=(scoped_array const &);
47 typedef scoped_array<T> this_type;
49 void operator==( scoped_array const& ) const;
50 void operator!=( scoped_array const& ) const;
54 typedef T element_type;
56 explicit scoped_array( T * p = 0 ) : px( p ) // never throws
58 #if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
59 boost::sp_array_constructor_hook( px );
63 ~scoped_array() // never throws
65 #if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
66 boost::sp_array_destructor_hook( px );
68 boost::checked_array_delete( px );
71 void reset(T * p = 0) // never throws
73 BOOST_ASSERT( p == 0 || p != px ); // catch self-reset errors
74 this_type(p).swap(*this);
77 T & operator[](std::ptrdiff_t i) const // never throws
79 BOOST_ASSERT( px != 0 );
80 BOOST_ASSERT( i >= 0 );
84 T * get() const // never throws
89 // implicit conversion to "bool"
90 #include <boost/smart_ptr/detail/operator_bool.hpp>
92 void swap(scoped_array & b) // never throws
100 template<class T> inline void swap(scoped_array<T> & a, scoped_array<T> & b) // never throws
107 #endif // #ifndef BOOST_SMART_PTR_SCOPED_ARRAY_HPP_INCLUDED