modernc.org/ccgo/v3@v3.16.14/lib/testdata/gcc-9.1.0/gcc/testsuite/gcc.c-torture/execute/950706-1.c (about)

     1  int
     2  f (int n)
     3  {
     4    return (n > 0) - (n < 0);
     5  }
     6  
     7  main ()
     8  {
     9    if (f (-1) != -1)
    10      abort ();
    11    if (f (1) != 1)
    12      abort ();
    13    if (f (0) != 0)
    14      abort ();
    15    exit (0);
    16  }