const CString& operator =( const CString& stringSrc )
throw( CMemoryException );
const CString& operator =( const char* psz )
throw( CMemoryException );
const CString& operator =( char ch )
throw( CMemoryException );
The CString assignment operator (=) reinitializes an existing CString object with new data. If the destination string (that is, the left side) is already large enough to store the new data, no new memory allocation is performed.
You should be aware that memory exceptions may occur whenever you use the assignment operator because new storage is often allocated to hold the resulting CString object.
CString s1, s2; // Empty CString objects
s1 = "cat"; // s1 = "cat"
s2 = s1; // s1 and s2 each = "cat"
s1 = "the " + s1; // Or expressions
s1 = 'x'; // Or just individual characters