TESTCASE( filemode( "r" ) == _PDCLIB_FREAD );
TESTCASE( filemode( "w" ) == _PDCLIB_FWRITE );
TESTCASE( filemode( "a" ) == _PDCLIB_FAPPEND );
TESTCASE( filemode( "r" ) == _PDCLIB_FREAD );
TESTCASE( filemode( "w" ) == _PDCLIB_FWRITE );
TESTCASE( filemode( "a" ) == _PDCLIB_FAPPEND );