epoc32/include/stdapis/boost/scoped_array.hpp
branchSymbian2
changeset 2 2fe1408b6811
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/epoc32/include/stdapis/boost/scoped_array.hpp	Tue Mar 16 16:12:26 2010 +0000
     1.3 @@ -0,0 +1,135 @@
     1.4 +#ifndef BOOST_SCOPED_ARRAY_HPP_INCLUDED
     1.5 +#define BOOST_SCOPED_ARRAY_HPP_INCLUDED
     1.6 +
     1.7 +//  (C) Copyright Greg Colvin and Beman Dawes 1998, 1999.
     1.8 +//  Copyright (c) 2001, 2002 Peter Dimov
     1.9 +//
    1.10 +//  Distributed under the Boost Software License, Version 1.0. (See
    1.11 +//  accompanying file LICENSE_1_0.txt or copy at
    1.12 +//  http://www.boost.org/LICENSE_1_0.txt)
    1.13 +//
    1.14 +//  http://www.boost.org/libs/smart_ptr/scoped_array.htm
    1.15 +//
    1.16 +
    1.17 +#include <boost/assert.hpp>
    1.18 +#include <boost/checked_delete.hpp>
    1.19 +#include <boost/config.hpp>   // in case ptrdiff_t not in std
    1.20 +
    1.21 +#include <boost/detail/workaround.hpp>
    1.22 +
    1.23 +#include <cstddef>            // for std::ptrdiff_t
    1.24 +
    1.25 +namespace boost
    1.26 +{
    1.27 +
    1.28 +// Debug hooks
    1.29 +
    1.30 +#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
    1.31 +
    1.32 +void sp_array_constructor_hook(void * p);
    1.33 +void sp_array_destructor_hook(void * p);
    1.34 +
    1.35 +#endif
    1.36 +
    1.37 +//  scoped_array extends scoped_ptr to arrays. Deletion of the array pointed to
    1.38 +//  is guaranteed, either on destruction of the scoped_array or via an explicit
    1.39 +//  reset(). Use shared_array or std::vector if your needs are more complex.
    1.40 +
    1.41 +template<class T> class scoped_array // noncopyable
    1.42 +{
    1.43 +private:
    1.44 +
    1.45 +    T * ptr;
    1.46 +
    1.47 +    scoped_array(scoped_array const &);
    1.48 +    scoped_array & operator=(scoped_array const &);
    1.49 +
    1.50 +    typedef scoped_array<T> this_type;
    1.51 +
    1.52 +public:
    1.53 +
    1.54 +    typedef T element_type;
    1.55 +
    1.56 +    explicit scoped_array(T * p = 0) : ptr(p) // never throws
    1.57 +    {
    1.58 +#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
    1.59 +        boost::sp_array_constructor_hook(ptr);
    1.60 +#endif
    1.61 +    }
    1.62 +
    1.63 +    ~scoped_array() // never throws
    1.64 +    {
    1.65 +#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
    1.66 +        boost::sp_array_destructor_hook(ptr);
    1.67 +#endif
    1.68 +        boost::checked_array_delete(ptr);
    1.69 +    }
    1.70 +
    1.71 +    void reset(T * p = 0) // never throws
    1.72 +    {
    1.73 +        BOOST_ASSERT(p == 0 || p != ptr); // catch self-reset errors
    1.74 +        this_type(p).swap(*this);
    1.75 +    }
    1.76 +
    1.77 +    T & operator[](std::ptrdiff_t i) const // never throws
    1.78 +    {
    1.79 +        BOOST_ASSERT(ptr != 0);
    1.80 +        BOOST_ASSERT(i >= 0);
    1.81 +        return ptr[i];
    1.82 +    }
    1.83 +
    1.84 +    T * get() const // never throws
    1.85 +    {
    1.86 +        return ptr;
    1.87 +    }
    1.88 +
    1.89 +    // implicit conversion to "bool"
    1.90 +
    1.91 +#if defined(__SUNPRO_CC) && BOOST_WORKAROUND(__SUNPRO_CC, <= 0x530)
    1.92 +
    1.93 +    operator bool () const
    1.94 +    {
    1.95 +        return ptr != 0;
    1.96 +    }
    1.97 +
    1.98 +#elif defined(__MWERKS__) && BOOST_WORKAROUND(__MWERKS__, BOOST_TESTED_AT(0x3003))
    1.99 +    typedef T * (this_type::*unspecified_bool_type)() const;
   1.100 +    
   1.101 +    operator unspecified_bool_type() const // never throws
   1.102 +    {
   1.103 +        return ptr == 0? 0: &this_type::get;
   1.104 +    }
   1.105 +
   1.106 +#else 
   1.107 +
   1.108 +    typedef T * this_type::*unspecified_bool_type;
   1.109 +
   1.110 +    operator unspecified_bool_type() const // never throws
   1.111 +    {
   1.112 +        return ptr == 0? 0: &this_type::ptr;
   1.113 +    }
   1.114 +
   1.115 +#endif
   1.116 +
   1.117 +    bool operator! () const // never throws
   1.118 +    {
   1.119 +        return ptr == 0;
   1.120 +    }
   1.121 +
   1.122 +    void swap(scoped_array & b) // never throws
   1.123 +    {
   1.124 +        T * tmp = b.ptr;
   1.125 +        b.ptr = ptr;
   1.126 +        ptr = tmp;
   1.127 +    }
   1.128 +
   1.129 +};
   1.130 +
   1.131 +template<class T> inline void swap(scoped_array<T> & a, scoped_array<T> & b) // never throws
   1.132 +{
   1.133 +    a.swap(b);
   1.134 +}
   1.135 +
   1.136 +} // namespace boost
   1.137 +
   1.138 +#endif  // #ifndef BOOST_SCOPED_ARRAY_HPP_INCLUDED