5 This file is part of the Public Domain C Library (PDCLib).
6 Permission is granted to use, modify, and / or redistribute at will.
15 if ( ( c >= 'A' ) && ( c <= 'Z' ) )
25 #include <_PDCLIB_test.h>
29 TESTCASE( tolower( 'A' ) == 'a' );
30 TESTCASE( tolower( 'Z' ) == 'z' );
31 TESTCASE( tolower( 'a' ) == 'a' );
32 TESTCASE( tolower( 'z' ) == 'z' );
33 TESTCASE( tolower( '@' ) == '@' );
34 TESTCASE( tolower( '[' ) == '[' );