1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/mfbt/tests/TestMacroForEach.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,31 @@
1.4 +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* vim: set ts=8 sts=2 et sw=2 tw=80: */
1.6 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +#include "mozilla/Assertions.h"
1.11 +#include "mozilla/MacroForEach.h"
1.12 +
1.13 +#define HELPER_IDENTITY_PLUS(x) x +
1.14 +static_assert(MOZ_FOR_EACH(HELPER_IDENTITY_PLUS, (), (10)) 0 == 10, "");
1.15 +static_assert(MOZ_FOR_EACH(HELPER_IDENTITY_PLUS, (), (1, 1, 1)) 0 == 3, "");
1.16 +
1.17 +#define HELPER_DEFINE_VAR(x) const int test1_##x = x;
1.18 +MOZ_FOR_EACH(HELPER_DEFINE_VAR, (), (10, 20))
1.19 +static_assert(test1_10 == 10 && test1_20 == 20, "");
1.20 +
1.21 +#define HELPER_DEFINE_VAR2(k, x) const int test2_##x = k + x;
1.22 +MOZ_FOR_EACH(HELPER_DEFINE_VAR2, (5,), (10, 20))
1.23 +static_assert(test2_10 == 15 && test2_20 == 25, "");
1.24 +
1.25 +#define HELPER_IDENTITY_COMMA(k1, k2, x) k1, k2, x,
1.26 +
1.27 +int main()
1.28 +{
1.29 + const int a[] = { MOZ_FOR_EACH(HELPER_IDENTITY_COMMA, (1, 2,), (10, 20, 30)) };
1.30 + MOZ_RELEASE_ASSERT(a[0] == 1 && a[1] == 2 && a[2] == 10 &&
1.31 + a[3] == 1 && a[4] == 2 && a[5] == 20 &&
1.32 + a[6] == 1 && a[7] == 2 && a[8] == 30,
1.33 + "MOZ_FOR_EACH args enumerated in incorrect order");
1.34 +}
