func: static void goodG2B() wchar_t * data ; map < int , wchar_t * > dataMap ; wchar_t * dataBuffer = ( wchar_t * ) ALLOCA ( 100 * sizeof ( wchar_t ) ) ; wmemset ( dataBuffer , L 'A' , 100 - 1 dataBuffer [ 100 - 1 ] = L '\0' data = dataBuffer; dataMap [ 0 ] = data; dataMap [ 1 ] = data; dataMap [ 2 ] = data; goodG2BSink ( dataMap ); void goodG2BSink(map<int, wchar_t *> dataMap) wchar_t * data = dataMap [ 2 ] ; wchar_t dest [ 100 ] ; wmemset ( dest , L 'C' , 100 - 1 dest [ 100 - 1 ] = L '\0' memmove ( dest , data , 100 * sizeof ( wchar_t ) ); printWLine ( dest ); void printWLine (const wchar_t * line) if ( line != NULL )  wprintf ( L "%ls\n" , line ) 