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comparison: mfbt/tests/TestMacroForEach.cpp
mfbt/tests/TestMacroForEach.cpp
- changeset 2
- 7e26c7da4463
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| -1:000000000000 | 0:a4bfeae37a44 |
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| 1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */ | |
| 3 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 4 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 6 | |
| 7 #include "mozilla/Assertions.h" | |
| 8 #include "mozilla/MacroForEach.h" | |
| 9 | |
| 10 #define HELPER_IDENTITY_PLUS(x) x + | |
| 11 static_assert(MOZ_FOR_EACH(HELPER_IDENTITY_PLUS, (), (10)) 0 == 10, ""); | |
| 12 static_assert(MOZ_FOR_EACH(HELPER_IDENTITY_PLUS, (), (1, 1, 1)) 0 == 3, ""); | |
| 13 | |
| 14 #define HELPER_DEFINE_VAR(x) const int test1_##x = x; | |
| 15 MOZ_FOR_EACH(HELPER_DEFINE_VAR, (), (10, 20)) | |
| 16 static_assert(test1_10 == 10 && test1_20 == 20, ""); | |
| 17 | |
| 18 #define HELPER_DEFINE_VAR2(k, x) const int test2_##x = k + x; | |
| 19 MOZ_FOR_EACH(HELPER_DEFINE_VAR2, (5,), (10, 20)) | |
| 20 static_assert(test2_10 == 15 && test2_20 == 25, ""); | |
| 21 | |
| 22 #define HELPER_IDENTITY_COMMA(k1, k2, x) k1, k2, x, | |
| 23 | |
| 24 int main() | |
| 25 { | |
| 26 const int a[] = { MOZ_FOR_EACH(HELPER_IDENTITY_COMMA, (1, 2,), (10, 20, 30)) }; | |
| 27 MOZ_RELEASE_ASSERT(a[0] == 1 && a[1] == 2 && a[2] == 10 && | |
| 28 a[3] == 1 && a[4] == 2 && a[5] == 20 && | |
| 29 a[6] == 1 && a[7] == 2 && a[8] == 30, | |
| 30 "MOZ_FOR_EACH args enumerated in incorrect order"); | |
| 31 } |
