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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 "string_traits.hpp"
namespace TAO
{
namespace details
{
template<typename charT>
class string_sequence_element
{
public:
typedef charT character_type;
typedef charT * value_type;
typedef charT const * const_value_type;
typedef details::string_traits<charT,true> string_traits;
// @@ Carlos, VC6 cannot handle the following typedefs. It simply
// says that "string_var" (or string_mgr) is not a member of
// "string_traits". I seem to understand this code better than VC6!
typedef typename string_traits::string_var string_var;
typedef typename string_traits::string_mgr string_mgr;
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=(charT const * rhs)
{
if (release())
{
value_type tmp = string_traits::duplicate(rhs);
string_traits::release(*element_);
*element_ = tmp;
return *this;
}
string_traits::not_released_from_const(*element_, rhs);
return *this;
}
string_sequence_element & operator=(charT * rhs)
{
if (release())
{
string_traits::release(*element_);
}
*element_ = rhs;
return *this;
}
string_sequence_element & operator=(string_sequence_element const & rhs)
{
return operator=(const_value_type(rhs));
}
string_sequence_element & operator=(string_var const & rhs)
{
return operator=(rhs.in());
}
string_sequence_element & operator=(string_mgr const & rhs)
{
return operator=(rhs.in());
}
inline operator const_value_type() const
{
return *element_;
}
void swap(string_sequence_element & rhs)
{
std::swap(element_, rhs.element_);
std::swap(release_, rhs.release_);
}
CORBA::Boolean release() const
{
return release_;
}
private:
// This function is not implemented
string_sequence_element();
private:
value_type * element_;
CORBA::Boolean release_;
};
} // namespace details
} // namespace CORBA
#endif // guard_string_sequence_element_hpp
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