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// Range v3 library
//
// Copyright Eric Niebler 2014-present
//
// Use, modification and distribution is subject to the
// Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//
// Project home: https://github.com/ericniebler/range-v3
//
// Copyright 2005 - 2007 Adobe Systems Incorporated
// Distributed under the MIT License(see accompanying file LICENSE_1_0_0.txt
// or a copy at http://stlab.adobe.com/licenses.html)
//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include <functional>
#include <iostream>
#include <memory>
#include <utility>
#include <vector>
#include <range/v3/core.hpp>
#include <range/v3/algorithm/remove_if.hpp>
#include "../simple_test.hpp"
#include "../test_utils.hpp"
#include "../test_iterators.hpp"
template<class Iter, class Sent = Iter>
void
test_iter()
{
int ia[] = {0, 1, 2, 3, 4, 2, 3, 4, 2};
constexpr auto sa = ranges::size(ia);
using namespace std::placeholders;
Iter r = ranges::remove_if(Iter(ia), Sent(ia+sa), std::bind(std::equal_to<int>(), _1, 2));
CHECK(base(r) == ia + sa-3);
CHECK(ia[0] == 0);
CHECK(ia[1] == 1);
CHECK(ia[2] == 3);
CHECK(ia[3] == 4);
CHECK(ia[4] == 3);
CHECK(ia[5] == 4);
}
template<class Iter, class Sent = Iter>
void
test_range()
{
int ia[] = {0, 1, 2, 3, 4, 2, 3, 4, 2};
constexpr auto sa = ranges::size(ia);
using namespace std::placeholders;
Iter r = ranges::remove_if(::as_lvalue(ranges::make_subrange(Iter(ia), Sent(ia+sa))), std::bind(std::equal_to<int>(), _1, 2));
CHECK(base(r) == ia + sa-3);
CHECK(ia[0] == 0);
CHECK(ia[1] == 1);
CHECK(ia[2] == 3);
CHECK(ia[3] == 4);
CHECK(ia[4] == 3);
CHECK(ia[5] == 4);
}
struct pred
{
bool operator()(const std::unique_ptr<int>& i) {return *i == 2;}
};
template<class Iter, class Sent = Iter>
void
test_iter_rvalue()
{
constexpr unsigned sa = 9;
std::unique_ptr<int> ia[sa];
ia[0].reset(new int(0));
ia[1].reset(new int(1));
ia[2].reset(new int(2));
ia[3].reset(new int(3));
ia[4].reset(new int(4));
ia[5].reset(new int(2));
ia[6].reset(new int(3));
ia[7].reset(new int(4));
ia[8].reset(new int(2));
Iter r = ranges::remove_if(Iter(ia), Sent(ia+sa), pred());
CHECK(base(r) == ia + sa-3);
CHECK(*ia[0] == 0);
CHECK(*ia[1] == 1);
CHECK(*ia[2] == 3);
CHECK(*ia[3] == 4);
CHECK(*ia[4] == 3);
CHECK(*ia[5] == 4);
}
template<class Iter, class Sent = Iter>
void
test_range_rvalue()
{
constexpr unsigned sa = 9;
std::unique_ptr<int> ia[sa];
ia[0].reset(new int(0));
ia[1].reset(new int(1));
ia[2].reset(new int(2));
ia[3].reset(new int(3));
ia[4].reset(new int(4));
ia[5].reset(new int(2));
ia[6].reset(new int(3));
ia[7].reset(new int(4));
ia[8].reset(new int(2));
Iter r = ranges::remove_if(::as_lvalue(ranges::make_subrange(Iter(ia), Sent(ia+sa))), pred());
CHECK(base(r) == ia + sa-3);
CHECK(*ia[0] == 0);
CHECK(*ia[1] == 1);
CHECK(*ia[2] == 3);
CHECK(*ia[3] == 4);
CHECK(*ia[4] == 3);
CHECK(*ia[5] == 4);
}
struct S
{
int i;
};
constexpr bool equals_two(int i)
{
return i == 2;
}
constexpr bool test_constexpr()
{
using namespace ranges;
int ia[] = {0, 1, 2, 3, 4, 2, 3, 4, 2};
constexpr auto sa = ranges::size(ia);
auto r = ranges::remove_if(ia, equals_two);
STATIC_CHECK_RETURN(r == ia + sa - 3);
STATIC_CHECK_RETURN(ia[0] == 0);
STATIC_CHECK_RETURN(ia[1] == 1);
STATIC_CHECK_RETURN(ia[2] == 3);
STATIC_CHECK_RETURN(ia[3] == 4);
STATIC_CHECK_RETURN(ia[4] == 3);
STATIC_CHECK_RETURN(ia[5] == 4);
return true;
}
int main()
{
test_iter<ForwardIterator<int*> >();
test_iter<BidirectionalIterator<int*> >();
test_iter<RandomAccessIterator<int*> >();
test_iter<int*>();
test_iter<ForwardIterator<int*>, Sentinel<int*>>();
test_iter<BidirectionalIterator<int*>, Sentinel<int*>>();
test_iter<RandomAccessIterator<int*>, Sentinel<int*>>();
test_range<ForwardIterator<int*> >();
test_range<BidirectionalIterator<int*> >();
test_range<RandomAccessIterator<int*> >();
test_range<int*>();
test_range<ForwardIterator<int*>, Sentinel<int*>>();
test_range<BidirectionalIterator<int*>, Sentinel<int*>>();
test_range<RandomAccessIterator<int*>, Sentinel<int*>>();
test_iter_rvalue<ForwardIterator<std::unique_ptr<int>*> >();
test_iter_rvalue<BidirectionalIterator<std::unique_ptr<int>*> >();
test_iter_rvalue<RandomAccessIterator<std::unique_ptr<int>*> >();
test_iter_rvalue<std::unique_ptr<int>*>();
test_iter_rvalue<ForwardIterator<std::unique_ptr<int>*>, Sentinel<std::unique_ptr<int>*>>();
test_iter_rvalue<BidirectionalIterator<std::unique_ptr<int>*>, Sentinel<std::unique_ptr<int>*>>();
test_iter_rvalue<RandomAccessIterator<std::unique_ptr<int>*>, Sentinel<std::unique_ptr<int>*>>();
test_range_rvalue<ForwardIterator<std::unique_ptr<int>*> >();
test_range_rvalue<BidirectionalIterator<std::unique_ptr<int>*> >();
test_range_rvalue<RandomAccessIterator<std::unique_ptr<int>*> >();
test_range_rvalue<std::unique_ptr<int>*>();
test_range_rvalue<ForwardIterator<std::unique_ptr<int>*>, Sentinel<std::unique_ptr<int>*>>();
test_range_rvalue<BidirectionalIterator<std::unique_ptr<int>*>, Sentinel<std::unique_ptr<int>*>>();
test_range_rvalue<RandomAccessIterator<std::unique_ptr<int>*>, Sentinel<std::unique_ptr<int>*>>();
{
// Check projection
S ia[] = {S{0}, S{1}, S{2}, S{3}, S{4}, S{2}, S{3}, S{4}, S{2}};
constexpr auto sa = ranges::size(ia);
using namespace std::placeholders;
S* r = ranges::remove_if(ia, std::bind(std::equal_to<int>(), _1, 2), &S::i);
CHECK(r == ia + sa-3);
CHECK(ia[0].i == 0);
CHECK(ia[1].i == 1);
CHECK(ia[2].i == 3);
CHECK(ia[3].i == 4);
CHECK(ia[4].i == 3);
CHECK(ia[5].i == 4);
}
{
// Check rvalue ranges
S ia[] = {S{0}, S{1}, S{2}, S{3}, S{4}, S{2}, S{3}, S{4}, S{2}};
using namespace std::placeholders;
auto r0 = ranges::remove_if(std::move(ia), std::bind(std::equal_to<int>(), _1, 2), &S::i);
#ifndef RANGES_WORKAROUND_MSVC_573728
static_assert(std::is_same<decltype(r0), ranges::dangling>::value, "");
#endif // RANGES_WORKAROUND_MSVC_573728
CHECK(ia[0].i == 0);
CHECK(ia[1].i == 1);
CHECK(ia[2].i == 3);
CHECK(ia[3].i == 4);
CHECK(ia[4].i == 3);
CHECK(ia[5].i == 4);
std::vector<S> vec{S{0}, S{1}, S{2}, S{3}, S{4}, S{2}, S{3}, S{4}, S{2}};
auto r1 = ranges::remove_if(std::move(vec), std::bind(std::equal_to<int>(), _1, 2), &S::i);
static_assert(std::is_same<decltype(r1), ranges::dangling>::value, "");
CHECK(vec[0].i == 0);
CHECK(vec[1].i == 1);
CHECK(vec[2].i == 3);
CHECK(vec[3].i == 4);
CHECK(vec[4].i == 3);
CHECK(vec[5].i == 4);
}
{
STATIC_CHECK(test_constexpr());
}
return ::test_result();
}
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