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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.
//
//===----------------------------------------------------------------------===//
// Implementation based on the code in libc++
// http://http://libcxx.llvm.org/
#include <vector>
#include <range/v3/core.hpp>
#include <range/v3/algorithm/unique.hpp>
#include "../simple_test.hpp"
#include "../test_utils.hpp"
#include "../test_iterators.hpp"
/// Calls the iterator interface of the algorithm
template<class Iter>
struct iter_call
{
using begin_t = Iter;
using sentinel_t = typename sentinel_type<Iter>::type;
template<class B, class E, class... Args>
auto operator()(B &&It, E &&e, Args &&... args) const
-> decltype(ranges::unique(begin_t{It}, sentinel_t{e}, std::forward<Args>(args)...))
{
return ranges::unique(begin_t{It}, sentinel_t{e}, std::forward<Args>(args)...);
}
};
/// Calls the range interface of the algorithm
template<class Iter>
struct range_call
{
using begin_t = Iter;
using sentinel_t = typename sentinel_type<Iter>::type;
template<class B, class E, class... Args>
auto operator()(B &&It, E &&e, Args &&... args) const
-> ranges::iterator_t<decltype(ranges::make_subrange(begin_t{It}, sentinel_t{e}))>
{
auto rng = ranges::make_subrange(begin_t{It}, sentinel_t{e});
return ranges::unique(rng, std::forward<Args>(args)...);
}
};
template<class T> using identity_t = T;
template<class It, template<class> class FunT>
void test()
{
using Fun = FunT<It>;
{
int a[] = {0};
const unsigned sa = sizeof(a) / sizeof(a[0]);
auto r = Fun{}(a, a + sa);
CHECK(r == It(a + sa));
CHECK(a[0] == 0);
}
{
int a[] = {0, 1};
const unsigned sa = sizeof(a) / sizeof(a[0]);
auto r = Fun{}(a, a + sa);
CHECK(r == It(a + sa));
CHECK(a[0] == 0);
CHECK(a[1] == 1);
}
{
int a[] = {0, 0};
const unsigned sa = sizeof(a) / sizeof(a[0]);
auto r = Fun{}(a, a + sa);
CHECK(r == It(a + 1));
CHECK(a[0] == 0);
}
{
int a[] = {0, 0, 1};
const unsigned sa = sizeof(a) / sizeof(a[0]);
auto r = Fun{}(a, a + sa);
CHECK(r == It(a + 2));
CHECK(a[0] == 0);
CHECK(a[1] == 1);
}
{
int a[] = {0, 0, 1, 0};
const unsigned sa = sizeof(a) / sizeof(a[0]);
auto r = Fun{}(a, a + sa);
CHECK(r == It(a + 3));
CHECK(a[0] == 0);
CHECK(a[1] == 1);
CHECK(a[2] == 0);
}
{
int a[] = {0, 0, 1, 1};
const unsigned sa = sizeof(a) / sizeof(a[0]);
auto r = Fun{}(a, a + sa);
CHECK(r == It(a + 2));
CHECK(a[0] == 0);
CHECK(a[1] == 1);
}
{
int a[] = {0, 1, 1};
const unsigned sa = sizeof(a) / sizeof(a[0]);
auto r = Fun{}(a, a + sa);
CHECK(r == It(a + 2));
CHECK(a[0] == 0);
CHECK(a[1] == 1);
}
{
int a[] = {0, 1, 1, 1, 2, 2, 2};
const unsigned sa = sizeof(a) / sizeof(a[0]);
auto r = Fun{}(a, a + sa);
CHECK(r == It(a + 3));
CHECK(a[0] == 0);
CHECK(a[1] == 1);
CHECK(a[2] == 2);
}
}
constexpr bool test_constexpr()
{
using namespace ranges;
int a[] = {0, 1, 1, 1, 2, 2, 2};
const unsigned sa = sizeof(a) / sizeof(a[0]);
auto r = unique(a, a + sa);
STATIC_CHECK_RETURN(r == a + 3);
STATIC_CHECK_RETURN(a[0] == 0);
STATIC_CHECK_RETURN(a[1] == 1);
STATIC_CHECK_RETURN(a[2] == 2);
return true;
}
int main()
{
test<ForwardIterator<int*>, iter_call>();
test<BidirectionalIterator<int*>, iter_call>();
test<RandomAccessIterator<int*>, iter_call>();
test<int*, iter_call>();
test<ForwardIterator<int*>, range_call>();
test<BidirectionalIterator<int*>, range_call>();
test<RandomAccessIterator<int*>, range_call>();
test<int*, range_call>();
// Test rvalue range
{
int a[] = {0, 1, 1, 1, 2, 2, 2};
auto r = ranges::unique(ranges::views::all(a));
CHECK(r == a + 3);
CHECK(a[0] == 0);
CHECK(a[1] == 1);
CHECK(a[2] == 2);
}
{
int a[] = {0, 1, 1, 1, 2, 2, 2};
auto r = ranges::unique(std::move(a));
#ifndef RANGES_WORKAROUND_MSVC_573728
CHECK(::is_dangling(r));
#endif // RANGES_WORKAROUND_MSVC_573728
CHECK(a[0] == 0);
CHECK(a[1] == 1);
CHECK(a[2] == 2);
}
{
std::vector<int> a{0, 1, 1, 1, 2, 2, 2};
auto r = ranges::unique(std::move(a));
CHECK(::is_dangling(r));
CHECK(a[0] == 0);
CHECK(a[1] == 1);
CHECK(a[2] == 2);
}
{
STATIC_CHECK(test_constexpr());
}
return ::test_result();
}
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