// PR11492 
// { dg-do compile }
// { dg-options "-Wsign-compare" }
int main( void )
{
  unsigned int a;
  unsigned char b;
  for ( a = 0, b = 2; a > b * 1000; a++ ) /* { dg-bogus "comparison between signed and unsigned integer" } */
    { ; }

  return 0;
}
