modernc.org/cc@v1.0.1/testdata/gcc-6.3.0/gcc/testsuite/gcc.c-torture/compile/foo.c (about)

     1  int *
     2  main (s1, s2)
     3       int *s1; int *s2;
     4  {
     5    while ((*s1++ = *s2++) != '\0')
     6      ;
     7    return s1 - 1;
     8  }