1 #ifndef BOOST_SCOPED_ARRAY_HPP_INCLUDED
2 #define BOOST_SCOPED_ARRAY_HPP_INCLUDED
4 // (C) Copyright Greg Colvin and Beman Dawes 1998, 1999.
5 // Copyright (c) 2001, 2002 Peter Dimov
7 // Permission to copy, use, modify, sell and distribute this software
8 // is granted provided this copyright notice appears in all copies.
9 // This software is provided "as is" without express or implied
10 // warranty, and with no claim as to its suitability for any purpose.
12 // http://www.boost.org/libs/smart_ptr/scoped_array.htm
15 #include <boost/assert.hpp>
16 #include <boost/checked_delete.hpp>
17 #include <boost/config.hpp> // in case ptrdiff_t not in std
18 #include <cstddef> // for std::ptrdiff_t
25 #if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
27 void sp_array_constructor_hook(void * p);
28 void sp_array_destructor_hook(void * p);
32 // scoped_array extends scoped_ptr to arrays. Deletion of the array pointed to
33 // is guaranteed, either on destruction of the scoped_array or via an explicit
34 // reset(). Use shared_array or std::vector if your needs are more complex.
36 template<class T> class scoped_array // noncopyable
42 scoped_array(scoped_array const &);
43 scoped_array & operator=(scoped_array const &);
45 typedef scoped_array<T> this_type;
49 typedef T element_type;
51 explicit scoped_array(T * p = 0) : ptr(p) // never throws
53 #if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
54 boost::sp_array_constructor_hook(ptr);
58 ~scoped_array() // never throws
60 #if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
61 boost::sp_array_destructor_hook(ptr);
63 boost::checked_array_delete(ptr);
66 void reset(T * p = 0) // never throws
68 BOOST_ASSERT(p == 0 || p != ptr); // catch self-reset errors
69 this_type(p).swap(*this);
72 T & operator[](std::ptrdiff_t i) const // never throws
74 BOOST_ASSERT(ptr != 0);
79 T * get() const // never throws
84 // implicit conversion to "bool"
86 typedef T * (this_type::*unspecified_bool_type)() const;
88 operator unspecified_bool_type() const // never throws
90 return ptr == 0? 0: &this_type::get;
93 bool operator! () const // never throws
98 void swap(scoped_array & b) // never throws
107 template<class T> inline void swap(scoped_array<T> & a, scoped_array<T> & b) // never throws
114 #endif // #ifndef BOOST_SCOPED_ARRAY_HPP_INCLUDED