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

     1  #define C L'\400'
     2  
     3  #if C
     4  #define zero (!C)
     5  #else
     6  #define zero C
     7  #endif
     8  
     9  main()
    10  {
    11    if (zero != 0)
    12      abort ();
    13    exit (0);
    14  }