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Imported from http://bugzilla.roxen.com/bugzilla/show_bug.cgi?id=2768

Reported by Robert J. Budzynski, Warsaw University, Dept. of Physics Robert.Budzynski@fuw.edu.pl

Running the following script (foo.pike):
#!/usr/local/bin/pike -w
#pragma strict_types
int main(int ac, array(string) av)
{
  write(version()+"\n");
  int(-1..1) foo=0;
  if(ac>1)
    {
      if(av[1]=="1") foo++;
      else foo--;
    }
  switch(foo)
    {
    case 1: write("foo is one\n"); break;
    case -1:  write("foo is minus one\n"); break;
    case 0: write("foo is zero\n"); break;
    default: write("Bah!\n");
    }
  return 0;
}
// script ends here

I obtain the output

$ ./foo.pike xxx
foo.pike:15: Warning: Type mismatch in case.
foo.pike:15: Warning: Expected: int(-1..1)
foo.pike:15: Warning: Got     : int
Pike v7.3 release 14
foo is minus one