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/* isupper( int )
This file is part of the Public Domain C Library (PDCLib).
Permission is granted to use, modify, and / or redistribute at will.
*/
#include <ctype.h>
#ifndef REGTEST
#include <locale.h>
int isupper( int c )
{
return ( _PDCLIB_lc_ctype.entry[c].flags & _PDCLIB_CTYPE_UPPER );
}
#endif
#ifdef TEST
#include "_PDCLIB_test.h"
int main( void )
{
TESTCASE( isupper( 'A' ) );
TESTCASE( isupper( 'Z' ) );
TESTCASE( ! isupper( 'a' ) );
TESTCASE( ! isupper( 'z' ) );
TESTCASE( ! isupper( ' ' ) );
TESTCASE( ! isupper( '@' ) );
return TEST_RESULTS;
}
#endif
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