Here is one simple example that illustrates the difference between a typical GCC and Clang diagnostic:



  $ gcc-4.2 -fsyntax-only t.c

  t.c:7: error: invalid operands to binary + (have 'int' and 'struct A')

  $ clang -fsyntax-only t.c

  t.c:7:39: error: invalid operands to binary expression ('int' and 'struct A')

    return y + func(y ? ((SomeA.X + 40) + SomeA) / 42 + SomeA.X : SomeA.X);

                         ~~~~~~~~~~~~~~ ^ ~~~~~