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

     1  int
     2  foo (char *a, char *b)
     3  {
     4    int x;
     5    *a = *b;
     6    x = *b;
     7    if ((char) x)
     8      return 1;
     9    else
    10      return 0;
    11  }