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