/// operator version of GetChar
char operator[](size_t n) const
{ ASSERT_VALID_INDEX( n ); return m_pchData[n]; }
/// operator version of GetChar
char operator[](size_t n) const
{ ASSERT_VALID_INDEX( n ); return m_pchData[n]; }
/// operator version of GetChar
char operator[](int n) const
{ ASSERT_VALID_INDEX( n ); return m_pchData[n]; }
/// operator version of GetChar
char operator[](int n) const
{ ASSERT_VALID_INDEX( n ); return m_pchData[n]; }
/// operator version of GetWritableChar
char& operator[](size_t n)
{ ASSERT_VALID_INDEX( n ); CopyBeforeWrite(); return m_pchData[n]; }
/// operator version of GetWritableChar
char& operator[](size_t n)
{ ASSERT_VALID_INDEX( n ); CopyBeforeWrite(); return m_pchData[n]; }