5 This file is part of the Public Domain C Library (PDCLib).
6 Permission is granted to use, modify, and / or redistribute at will.
17 return ( _PDCLIB_lconv.ctype[c].flags & _PDCLIB_CTYPE_UPPER );
23 #include <_PDCLIB_test.h>
27 TESTCASE( isupper( 'A' ) );
28 TESTCASE( isupper( 'Z' ) );
29 TESTCASE( ! isupper( 'a' ) );
30 TESTCASE( ! isupper( 'z' ) );
31 TESTCASE( ! isupper( ' ' ) );
32 TESTCASE( ! isupper( '@' ) );