Quelle TestMacroForEach.cpp Sprache: C

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "mozilla/Assertions.h"
#include "mozilla/MacroForEach.h"

#define HELPER_IDENTITY(x) x
#define HELPER_IDENTITY_PLUS(x) x +
static_assert(MOZ_FOR_EACH(HELPER_IDENTITY_PLUS, (), (10)) 0 == 10, "");
static_assert(MOZ_FOR_EACH(HELPER_IDENTITY_PLUS, (), (1, 1, 1)) 0 == 3, "");
static_assert(MOZ_FOR_EACH_SEPARATED(HELPER_IDENTITY, (+), (), (10)) == 10, "");
static_assert(MOZ_FOR_EACH_SEPARATED(HELPER_IDENTITY, (+), (), (1, 1, 1)) == 3,
              "");

#define HELPER_ONE_PLUS(x) HELPER_IDENTITY_PLUS(1)
static_assert(MOZ_FOR_EACH(HELPER_ONE_PLUS, (), ()) 0 == 0, "");

#define HELPER_DEFINE_VAR(x) const int test1_##x = x;
MOZ_FOR_EACH(HELPER_DEFINE_VAR, (), (10, 20))
static_assert(test1_10 == 10 && test1_20 == 20, "");

#define HELPER_DEFINE_VAR2(k, x) const int test2_##x = k + x;
MOZ_FOR_EACH(HELPER_DEFINE_VAR2, (5, ), (10, 20))
static_assert(test2_10 == 15 && test2_20 == 25, "");

#define HELPER_DEFINE_PARAM(t, n) t n
constexpr int test(MOZ_FOR_EACH_SEPARATED(HELPER_DEFINE_PARAM, (, ), (int, ),
                                          (a, b, c))) {
  return a + b + c;
}
static_assert(test(1, 2, 3) == 6, "");

int main() {
#define HELPER_IDENTITY_COMMA(k1, k2, x) k1, k2, x,
  const int a[] = {MOZ_FOR_EACH(HELPER_IDENTITY_COMMA, (1, 2, ), (10, 20, 30))};
  MOZ_RELEASE_ASSERT(a[0] == 1 && a[1] == 2 && a[2] == 10 && a[3] == 1 &&
                         a[4] == 2 && a[5] == 20 && a[6] == 1 && a[7] == 2 &&
                         a[8] == 30,
                     "MOZ_FOR_EACH args enumerated in incorrect order");
  return 0;
}

quality100%

¤ Dauer der Verarbeitung: 0.13 Sekunden (vorverarbeitet) ¤

Wurzel

Suchen

Beweissystem der NASA

Beweissystem Isabelle

NIST Cobol Testsuite

Cephes Mathematical Library

Wiener Entwicklungsmethode

Haftungshinweis

Die Informationen auf dieser Webseite wurden nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit, noch Qualität der bereit gestellten Informationen zugesichert.

Bemerkung:

Die farbliche Syntaxdarstellung ist noch experimentell.