- rc = _PDCLIB_strtox_main( &p, base, ULONG_MAX, ULONG_MAX / base, ULONG_MAX % base, &sign );
+ if ( base < 2 || base > 36 ) return 0;
+ rc = _PDCLIB_strtox_main( &p, (unsigned)base, (uintmax_t)ULONG_MAX, (uintmax_t)( ULONG_MAX / base ), (uintmax_t)( ULONG_MAX % base ), &sign );