michael@0: /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* vim: set ts=8 sts=2 et sw=2 tw=80: */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "mozilla/Assertions.h"
michael@0: #include "mozilla/MacroForEach.h"
michael@0: 
michael@0: #define HELPER_IDENTITY_PLUS(x) x +
michael@0: static_assert(MOZ_FOR_EACH(HELPER_IDENTITY_PLUS, (), (10)) 0 == 10, "");
michael@0: static_assert(MOZ_FOR_EACH(HELPER_IDENTITY_PLUS, (), (1, 1, 1)) 0 == 3, "");
michael@0: 
michael@0: #define HELPER_DEFINE_VAR(x) const int test1_##x = x;
michael@0: MOZ_FOR_EACH(HELPER_DEFINE_VAR, (), (10, 20))
michael@0: static_assert(test1_10 == 10 && test1_20 == 20, "");
michael@0: 
michael@0: #define HELPER_DEFINE_VAR2(k, x) const int test2_##x = k + x;
michael@0: MOZ_FOR_EACH(HELPER_DEFINE_VAR2, (5,), (10, 20))
michael@0: static_assert(test2_10 == 15 && test2_20 == 25, "");
michael@0: 
michael@0: #define HELPER_IDENTITY_COMMA(k1, k2, x) k1, k2, x,
michael@0: 
michael@0: int main()
michael@0: {
michael@0:   const int a[] = { MOZ_FOR_EACH(HELPER_IDENTITY_COMMA, (1, 2,), (10, 20, 30)) };
michael@0:   MOZ_RELEASE_ASSERT(a[0] == 1 && a[1] == 2 && a[2] == 10 &&
michael@0:                      a[3] == 1 && a[4] == 2 && a[5] == 20 &&
michael@0:                      a[6] == 1 && a[7] == 2 && a[8] == 30,
michael@0:                      "MOZ_FOR_EACH args enumerated in incorrect order");
michael@0: }