fune/mfbt/tests/TestAlgorithm.cpp
Masatoshi Kimura 316aea87d9 Bug 1449094 - Implement constexpr mozilla::AllOf. r=froydnj
MozReview-Commit-ID: KvKY9CMqfww

--HG--
extra : rebase_source : 15efd61da5b66d6bbb4655cf95936c5d36473a82
2018-03-28 00:01:08 +09:00

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1.7 KiB
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/Algorithm.h"
#include "mozilla/Assertions.h"
#include <algorithm>
static constexpr bool even(int32_t n) { return !(n & 1); }
static constexpr bool odd(int32_t n) { return (n & 1); }
void TestAllOf()
{
using namespace mozilla;
using namespace std;
int32_t arr1[3] = {1, 2, 3};
MOZ_RELEASE_ASSERT(!AllOf(begin(arr1), end(arr1), even));
MOZ_RELEASE_ASSERT(!AllOf(begin(arr1), end(arr1), odd));
int32_t arr2[3] = {1, 3, 5};
MOZ_RELEASE_ASSERT(!AllOf(begin(arr2), end(arr2), even));
MOZ_RELEASE_ASSERT(AllOf(begin(arr2), end(arr2), odd));
int32_t arr3[3] = {2, 4, 6};
MOZ_RELEASE_ASSERT(AllOf(begin(arr3), end(arr3), even));
MOZ_RELEASE_ASSERT(!AllOf(begin(arr3), end(arr3), odd));
}
void TestConstExprAllOf()
{
using namespace mozilla;
using namespace std;
constexpr int32_t arr1[3] = {1, 2, 3};
static_assert(!ConstExprAllOf(begin(arr1), end(arr1), even), "1-1");
static_assert(!ConstExprAllOf(begin(arr1), end(arr1), odd), "1-2");
constexpr int32_t arr2[3] = {1, 3, 5};
static_assert(!ConstExprAllOf(begin(arr2), end(arr2), even), "2-1");
static_assert(ConstExprAllOf(begin(arr2), end(arr2), odd), "2-2");
constexpr int32_t arr3[3] = {2, 4, 6};
static_assert(ConstExprAllOf(begin(arr3), end(arr3), even), "3-1");
static_assert(!ConstExprAllOf(begin(arr3), end(arr3), odd), "3-2");
}
int
main()
{
TestAllOf();
TestConstExprAllOf();
return 0;
}