/* isdigit( 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 "_PDCLIB_locale.h"

int isdigit( int c )
{
    return ( _PDCLIB_threadlocale()->_CType[c].flags & _PDCLIB_CTYPE_DIGIT );
}

#endif

#ifdef TEST
#include "_PDCLIB_test.h"

int main( void )
{
    TESTCASE( isdigit( '0' ) );
    TESTCASE( isdigit( '9' ) );
    TESTCASE( ! isdigit( ' ' ) );
    TESTCASE( ! isdigit( 'a' ) );
    TESTCASE( ! isdigit( '@' ) );
    return TEST_RESULTS;
}

#endif