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#ifndef guard_string_sequence_element_hpp
#define guard_string_sequence_element_hpp
/**
* @file
*
* @brief Implement the type returned by operator[] in string
* sequences.
*
* $Id$
*
* @author Carlos O'Ryan
*/
#include "tao/Basic_Types.h"
TAO_BEGIN_VERSIONED_NAMESPACE_DECL
namespace TAO
{
namespace details
{
template<typename traits>
class string_sequence_element
{
public:
typedef typename traits::char_type character_type;
typedef character_type * value_type;
typedef character_type const * const_value_type;
typedef typename traits::string_var string_var;
typedef typename traits::string_out string_out;
typedef typename traits::string_mgr string_mgr;
private:
inline string_sequence_element<traits> & pseudo_copy_swap(string_var & rhs)
{
if (release())
{
traits::release(*element_);
}
*element_ = rhs._retn();
return *this;
}
public:
string_sequence_element(
value_type & e, CORBA::Boolean release)
: element_(&e)
, release_(release)
{
}
string_sequence_element(
string_sequence_element const & rhs)
: element_(rhs.element_)
, release_(rhs.release_)
{
}
~string_sequence_element()
{
}
string_sequence_element & operator=(const_value_type rhs)
{
string_var tmp(rhs);
return pseudo_copy_swap(tmp);
}
string_sequence_element & operator=(value_type rhs)
{
string_var tmp(rhs);
return pseudo_copy_swap(tmp);
}
string_sequence_element & operator=(string_sequence_element const & rhs)
{
string_var tmp(static_cast<const_value_type>(rhs));
return pseudo_copy_swap(tmp);
}
string_sequence_element & operator=(string_var const & rhs)
{
string_var tmp(rhs);
return pseudo_copy_swap(tmp);
}
string_sequence_element & operator=(string_mgr const & rhs)
{
string_var tmp(rhs.in());
return pseudo_copy_swap(tmp);
}
inline operator const_value_type() const
{
return *this->element_;
}
inline const character_type *in (void) const {
return *this->element_;
}
inline character_type *&inout (void) const {
return *this->element_;
}
inline string_out out (void) const {
if (release())
{
traits::release(*element_);
}
return *this->element_;
}
inline character_type *_retn (void) {
character_type * copy = *this->element_;
*this->element_ = traits::default_initializer();
return copy;
}
void swap(string_sequence_element & rhs)
{
std::swap(element_, rhs.element_);
std::swap(release_, rhs.release_);
}
CORBA::Boolean release() const
{
return this->release_;
}
private:
// This function is not implemented
string_sequence_element();
private:
value_type * element_;
CORBA::Boolean release_;
};
} // namespace details
} // namespace CORBA
TAO_END_VERSIONED_NAMESPACE_DECL
#endif // guard_string_sequence_element_hpp
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