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376 lines
19 KiB
C++
376 lines
19 KiB
C++
// Range v3 library
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//
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// Copyright Eric Niebler 2014-present
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//
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// Use, modification and distribution is subject to the
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// Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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//
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// Project home: https://github.com/ericniebler/range-v3
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//
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//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include <algorithm>
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#include <functional>
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#include <vector>
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#include <range/v3/core.hpp>
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#include <range/v3/algorithm/fill.hpp>
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#include <range/v3/algorithm/set_algorithm.hpp>
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#include <range/v3/algorithm/lexicographical_compare.hpp>
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#include "../simple_test.hpp"
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#include "../test_utils.hpp"
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#include "../test_iterators.hpp"
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template<class Iter1, class Iter2, class OutIter>
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void
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test_iter()
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{
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int ia[] = {1, 2, 2, 3, 3, 3, 4, 4, 4, 4};
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static const int sa = sizeof(ia)/sizeof(ia[0]);
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int ib[] = {2, 4, 4, 6};
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static const int sb = sizeof(ib)/sizeof(ib[0]);
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int ic[20];
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int ir[] = {1, 2, 3, 3, 3, 4, 4};
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static const int sr = sizeof(ir)/sizeof(ir[0]);
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auto set_difference = ::make_testable_2<false, true>(ranges::set_difference);
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set_difference(Iter1(ia), Iter1(ia+sa), Iter2(ib), Iter2(ib+sb), OutIter(ic)).
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check([&](ranges::set_difference_result<Iter1, OutIter> res)
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{
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CHECK((base(res.in1) - ia) == sa);
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CHECK((base(res.out) - ic) == sr);
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CHECK(std::lexicographical_compare(ic, base(res.out), ir, ir+sr) == false);
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ranges::fill(ic, 0);
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}
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);
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int irr[] = {6};
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static const int srr = sizeof(irr)/sizeof(irr[0]);
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set_difference(Iter1(ib), Iter1(ib+sb), Iter2(ia), Iter2(ia+sa), OutIter(ic)).
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check([&](ranges::set_difference_result<Iter1, OutIter> res)
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{
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CHECK((base(res.in1) - ib) == sb);
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CHECK((base(res.out) - ic) == srr);
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CHECK(std::lexicographical_compare(ic, base(res.out), irr, irr+srr) == false);
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ranges::fill(ic, 0);
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}
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);
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}
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template<class Iter1, class Iter2, class OutIter>
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void
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test_comp()
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{
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int ia[] = {1, 2, 2, 3, 3, 3, 4, 4, 4, 4};
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static const int sa = sizeof(ia)/sizeof(ia[0]);
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int ib[] = {2, 4, 4, 6};
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static const int sb = sizeof(ib)/sizeof(ib[0]);
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int ic[20];
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int ir[] = {1, 2, 3, 3, 3, 4, 4};
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static const int sr = sizeof(ir)/sizeof(ir[0]);
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auto set_difference = ::make_testable_2<false, true>(ranges::set_difference);
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set_difference(Iter1(ia), Iter1(ia+sa), Iter2(ib), Iter2(ib+sb), OutIter(ic), std::less<int>()).
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check([&](ranges::set_difference_result<Iter1, OutIter> res)
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{
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CHECK((base(res.in1) - ia) == sa);
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CHECK((base(res.out) - ic) == sr);
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CHECK(std::lexicographical_compare(ic, base(res.out), ir, ir+sr) == false);
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ranges::fill(ic, 0);
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}
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);
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int irr[] = {6};
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static const int srr = sizeof(irr)/sizeof(irr[0]);
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set_difference(Iter1(ib), Iter1(ib+sb), Iter2(ia), Iter2(ia+sa), OutIter(ic), std::less<int>()).
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check([&](ranges::set_difference_result<Iter1, OutIter> res)
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{
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CHECK((base(res.in1) - ib) == sb);
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CHECK((base(res.out) - ic) == srr);
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CHECK(std::lexicographical_compare(ic, base(res.out), irr, irr+srr) == false);
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ranges::fill(ic, 0);
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}
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);
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}
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template<class Iter1, class Iter2, class OutIter>
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void test()
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{
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test_iter<Iter1, Iter2, OutIter>();
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test_comp<Iter1, Iter2, OutIter>();
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}
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struct S
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{
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int i;
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};
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struct T
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{
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int j;
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};
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struct U
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{
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int k;
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U& operator=(S s) { k = s.i; return *this;}
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U& operator=(T t) { k = t.j; return *this;}
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};
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constexpr bool test_constexpr()
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{
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using namespace ranges;
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using IL = std::initializer_list<int>;
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int ia[] = {1, 2, 2, 3, 3, 3, 4, 4, 4, 4};
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const int sa = sizeof(ia) / sizeof(ia[0]);
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int ib[] = {2, 4, 4, 6};
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const int sb = sizeof(ib) / sizeof(ib[0]);
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int ic[20] = {0};
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int ir[] = {1, 2, 3, 3, 3, 4, 4};
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const int sr = sizeof(ir) / sizeof(ir[0]);
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const auto res = set_difference(ia, IL{2, 4, 4, 6}, ic, less{});
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STATIC_CHECK_RETURN((res.in1 - ia) == sa);
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STATIC_CHECK_RETURN((res.out - ic) == sr);
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STATIC_CHECK_RETURN(lexicographical_compare(ic, res.out, ir, ir + sr, less{}) == 0);
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fill(ic, 0);
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int irr[] = {6};
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const int srr = sizeof(irr) / sizeof(irr[0]);
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const auto res2 = set_difference(ib, IL{1, 2, 2, 3, 3, 3, 4, 4, 4, 4}, ic, less{});
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STATIC_CHECK_RETURN((res2.in1 - ib) == sb);
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STATIC_CHECK_RETURN((res2.out - ic) == srr);
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STATIC_CHECK_RETURN(lexicographical_compare(ic, res2.out, irr, irr + srr, less{}) == 0);
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return true;
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}
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int main()
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{
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#ifdef SET_DIFFERENCE_1
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test<InputIterator<const int*>, InputIterator<const int*>, OutputIterator<int*> >();
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test<InputIterator<const int*>, InputIterator<const int*>, ForwardIterator<int*> >();
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test<InputIterator<const int*>, InputIterator<const int*>, BidirectionalIterator<int*> >();
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test<InputIterator<const int*>, InputIterator<const int*>, RandomAccessIterator<int*> >();
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test<InputIterator<const int*>, InputIterator<const int*>, int*>();
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test<InputIterator<const int*>, ForwardIterator<const int*>, OutputIterator<int*> >();
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test<InputIterator<const int*>, ForwardIterator<const int*>, ForwardIterator<int*> >();
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test<InputIterator<const int*>, ForwardIterator<const int*>, BidirectionalIterator<int*> >();
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test<InputIterator<const int*>, ForwardIterator<const int*>, RandomAccessIterator<int*> >();
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test<InputIterator<const int*>, ForwardIterator<const int*>, int*>();
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test<InputIterator<const int*>, BidirectionalIterator<const int*>, OutputIterator<int*> >();
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test<InputIterator<const int*>, BidirectionalIterator<const int*>, ForwardIterator<int*> >();
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test<InputIterator<const int*>, BidirectionalIterator<const int*>, BidirectionalIterator<int*> >();
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test<InputIterator<const int*>, BidirectionalIterator<const int*>, RandomAccessIterator<int*> >();
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test<InputIterator<const int*>, BidirectionalIterator<const int*>, int*>();
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test<InputIterator<const int*>, RandomAccessIterator<const int*>, OutputIterator<int*> >();
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test<InputIterator<const int*>, RandomAccessIterator<const int*>, ForwardIterator<int*> >();
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test<InputIterator<const int*>, RandomAccessIterator<const int*>, BidirectionalIterator<int*> >();
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test<InputIterator<const int*>, RandomAccessIterator<const int*>, RandomAccessIterator<int*> >();
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test<InputIterator<const int*>, RandomAccessIterator<const int*>, int*>();
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test<InputIterator<const int*>, const int*, OutputIterator<int*> >();
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test<InputIterator<const int*>, const int*, ForwardIterator<int*> >();
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test<InputIterator<const int*>, const int*, BidirectionalIterator<int*> >();
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test<InputIterator<const int*>, const int*, RandomAccessIterator<int*> >();
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test<InputIterator<const int*>, const int*, int*>();
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#endif
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#ifdef SET_DIFFERENCE_2
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test<ForwardIterator<const int*>, InputIterator<const int*>, OutputIterator<int*> >();
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test<ForwardIterator<const int*>, InputIterator<const int*>, ForwardIterator<int*> >();
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test<ForwardIterator<const int*>, InputIterator<const int*>, BidirectionalIterator<int*> >();
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test<ForwardIterator<const int*>, InputIterator<const int*>, RandomAccessIterator<int*> >();
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test<ForwardIterator<const int*>, InputIterator<const int*>, int*>();
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test<ForwardIterator<const int*>, ForwardIterator<const int*>, OutputIterator<int*> >();
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test<ForwardIterator<const int*>, ForwardIterator<const int*>, ForwardIterator<int*> >();
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test<ForwardIterator<const int*>, ForwardIterator<const int*>, BidirectionalIterator<int*> >();
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test<ForwardIterator<const int*>, ForwardIterator<const int*>, RandomAccessIterator<int*> >();
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test<ForwardIterator<const int*>, ForwardIterator<const int*>, int*>();
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test<ForwardIterator<const int*>, BidirectionalIterator<const int*>, OutputIterator<int*> >();
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test<ForwardIterator<const int*>, BidirectionalIterator<const int*>, ForwardIterator<int*> >();
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test<ForwardIterator<const int*>, BidirectionalIterator<const int*>, BidirectionalIterator<int*> >();
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test<ForwardIterator<const int*>, BidirectionalIterator<const int*>, RandomAccessIterator<int*> >();
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test<ForwardIterator<const int*>, BidirectionalIterator<const int*>, int*>();
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test<ForwardIterator<const int*>, RandomAccessIterator<const int*>, OutputIterator<int*> >();
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test<ForwardIterator<const int*>, RandomAccessIterator<const int*>, ForwardIterator<int*> >();
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test<ForwardIterator<const int*>, RandomAccessIterator<const int*>, BidirectionalIterator<int*> >();
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test<ForwardIterator<const int*>, RandomAccessIterator<const int*>, RandomAccessIterator<int*> >();
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test<ForwardIterator<const int*>, RandomAccessIterator<const int*>, int*>();
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test<ForwardIterator<const int*>, const int*, OutputIterator<int*> >();
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test<ForwardIterator<const int*>, const int*, ForwardIterator<int*> >();
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test<ForwardIterator<const int*>, const int*, BidirectionalIterator<int*> >();
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test<ForwardIterator<const int*>, const int*, RandomAccessIterator<int*> >();
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test<ForwardIterator<const int*>, const int*, int*>();
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#endif
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#ifdef SET_DIFFERENCE_3
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test<BidirectionalIterator<const int*>, InputIterator<const int*>, OutputIterator<int*> >();
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test<BidirectionalIterator<const int*>, InputIterator<const int*>, ForwardIterator<int*> >();
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test<BidirectionalIterator<const int*>, InputIterator<const int*>, BidirectionalIterator<int*> >();
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test<BidirectionalIterator<const int*>, InputIterator<const int*>, RandomAccessIterator<int*> >();
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test<BidirectionalIterator<const int*>, InputIterator<const int*>, int*>();
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test<BidirectionalIterator<const int*>, ForwardIterator<const int*>, OutputIterator<int*> >();
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test<BidirectionalIterator<const int*>, ForwardIterator<const int*>, ForwardIterator<int*> >();
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test<BidirectionalIterator<const int*>, ForwardIterator<const int*>, BidirectionalIterator<int*> >();
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test<BidirectionalIterator<const int*>, ForwardIterator<const int*>, RandomAccessIterator<int*> >();
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test<BidirectionalIterator<const int*>, ForwardIterator<const int*>, int*>();
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test<BidirectionalIterator<const int*>, BidirectionalIterator<const int*>, OutputIterator<int*> >();
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test<BidirectionalIterator<const int*>, BidirectionalIterator<const int*>, ForwardIterator<int*> >();
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test<BidirectionalIterator<const int*>, BidirectionalIterator<const int*>, BidirectionalIterator<int*> >();
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test<BidirectionalIterator<const int*>, BidirectionalIterator<const int*>, RandomAccessIterator<int*> >();
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test<BidirectionalIterator<const int*>, BidirectionalIterator<const int*>, int*>();
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test<BidirectionalIterator<const int*>, RandomAccessIterator<const int*>, OutputIterator<int*> >();
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test<BidirectionalIterator<const int*>, RandomAccessIterator<const int*>, ForwardIterator<int*> >();
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test<BidirectionalIterator<const int*>, RandomAccessIterator<const int*>, BidirectionalIterator<int*> >();
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test<BidirectionalIterator<const int*>, RandomAccessIterator<const int*>, RandomAccessIterator<int*> >();
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test<BidirectionalIterator<const int*>, RandomAccessIterator<const int*>, int*>();
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test<BidirectionalIterator<const int*>, const int*, OutputIterator<int*> >();
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test<BidirectionalIterator<const int*>, const int*, ForwardIterator<int*> >();
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test<BidirectionalIterator<const int*>, const int*, BidirectionalIterator<int*> >();
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test<BidirectionalIterator<const int*>, const int*, RandomAccessIterator<int*> >();
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test<BidirectionalIterator<const int*>, const int*, int*>();
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#endif
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#ifdef SET_DIFFERENCE_4
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test<RandomAccessIterator<const int*>, InputIterator<const int*>, OutputIterator<int*> >();
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test<RandomAccessIterator<const int*>, InputIterator<const int*>, ForwardIterator<int*> >();
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test<RandomAccessIterator<const int*>, InputIterator<const int*>, BidirectionalIterator<int*> >();
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test<RandomAccessIterator<const int*>, InputIterator<const int*>, RandomAccessIterator<int*> >();
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test<RandomAccessIterator<const int*>, InputIterator<const int*>, int*>();
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test<RandomAccessIterator<const int*>, ForwardIterator<const int*>, OutputIterator<int*> >();
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test<RandomAccessIterator<const int*>, ForwardIterator<const int*>, ForwardIterator<int*> >();
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test<RandomAccessIterator<const int*>, ForwardIterator<const int*>, BidirectionalIterator<int*> >();
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test<RandomAccessIterator<const int*>, ForwardIterator<const int*>, RandomAccessIterator<int*> >();
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test<RandomAccessIterator<const int*>, ForwardIterator<const int*>, int*>();
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test<RandomAccessIterator<const int*>, BidirectionalIterator<const int*>, OutputIterator<int*> >();
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test<RandomAccessIterator<const int*>, BidirectionalIterator<const int*>, ForwardIterator<int*> >();
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test<RandomAccessIterator<const int*>, BidirectionalIterator<const int*>, BidirectionalIterator<int*> >();
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test<RandomAccessIterator<const int*>, BidirectionalIterator<const int*>, RandomAccessIterator<int*> >();
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test<RandomAccessIterator<const int*>, BidirectionalIterator<const int*>, int*>();
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test<RandomAccessIterator<const int*>, RandomAccessIterator<const int*>, OutputIterator<int*> >();
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test<RandomAccessIterator<const int*>, RandomAccessIterator<const int*>, ForwardIterator<int*> >();
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test<RandomAccessIterator<const int*>, RandomAccessIterator<const int*>, BidirectionalIterator<int*> >();
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test<RandomAccessIterator<const int*>, RandomAccessIterator<const int*>, RandomAccessIterator<int*> >();
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test<RandomAccessIterator<const int*>, RandomAccessIterator<const int*>, int*>();
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test<RandomAccessIterator<const int*>, const int*, OutputIterator<int*> >();
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test<RandomAccessIterator<const int*>, const int*, ForwardIterator<int*> >();
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test<RandomAccessIterator<const int*>, const int*, BidirectionalIterator<int*> >();
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test<RandomAccessIterator<const int*>, const int*, RandomAccessIterator<int*> >();
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test<RandomAccessIterator<const int*>, const int*, int*>();
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#endif
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#ifdef SET_DIFFERENCE_5
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test<const int*, InputIterator<const int*>, OutputIterator<int*> >();
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test<const int*, InputIterator<const int*>, BidirectionalIterator<int*> >(); test<const int*, InputIterator<const int*>, BidirectionalIterator<int*> >();
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test<const int*, InputIterator<const int*>, RandomAccessIterator<int*> >();
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test<const int*, InputIterator<const int*>, int*>();
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test<const int*, ForwardIterator<const int*>, OutputIterator<int*> >();
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test<const int*, ForwardIterator<const int*>, ForwardIterator<int*> >();
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test<const int*, ForwardIterator<const int*>, BidirectionalIterator<int*> >();
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test<const int*, ForwardIterator<const int*>, RandomAccessIterator<int*> >();
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test<const int*, ForwardIterator<const int*>, int*>();
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test<const int*, BidirectionalIterator<const int*>, OutputIterator<int*> >();
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test<const int*, BidirectionalIterator<const int*>, ForwardIterator<int*> >();
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test<const int*, BidirectionalIterator<const int*>, BidirectionalIterator<int*> >();
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test<const int*, BidirectionalIterator<const int*>, RandomAccessIterator<int*> >();
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test<const int*, BidirectionalIterator<const int*>, int*>();
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test<const int*, RandomAccessIterator<const int*>, OutputIterator<int*> >();
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test<const int*, RandomAccessIterator<const int*>, ForwardIterator<int*> >();
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test<const int*, RandomAccessIterator<const int*>, BidirectionalIterator<int*> >();
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test<const int*, RandomAccessIterator<const int*>, RandomAccessIterator<int*> >();
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test<const int*, RandomAccessIterator<const int*>, int*>();
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test<const int*, const int*, OutputIterator<int*> >();
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test<const int*, const int*, ForwardIterator<int*> >();
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test<const int*, const int*, BidirectionalIterator<int*> >();
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test<const int*, const int*, RandomAccessIterator<int*> >();
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test<const int*, const int*, int*>();
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#endif
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#ifdef SET_DIFFERENCE_6
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// Test projections
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{
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S ia[] = {S{1}, S{2}, S{2}, S{3}, S{3}, S{3}, S{4}, S{4}, S{4}, S{4}};
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static const int sa = sizeof(ia)/sizeof(ia[0]);
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T ib[] = {T{2}, T{4}, T{4}, T{6}};
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static const int sb = sizeof(ib)/sizeof(ib[0]);
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U ic[20];
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int ir[] = {1, 2, 3, 3, 3, 4, 4};
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static const int sr = sizeof(ir)/sizeof(ir[0]);
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ranges::set_difference_result<S *, U *> res = ranges::set_difference(ia, ib, ic, std::less<int>(), &S::i, &T::j);
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CHECK((res.in1 - ia) == sa);
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CHECK((res.out - ic) == sr);
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CHECK(ranges::lexicographical_compare(ic, res.out, ir, ir+sr, std::less<int>(), &U::k) == false);
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ranges::fill(ic, U{0});
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int irr[] = {6};
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static const int srr = sizeof(irr)/sizeof(irr[0]);
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ranges::set_difference_result<T *, U *> res2 = ranges::set_difference(ib, ia, ic, std::less<int>(), &T::j, &S::i);
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CHECK((res2.in1 - ib) == sb);
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CHECK((res2.out - ic) == srr);
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CHECK(ranges::lexicographical_compare(ic, res2.out, ir, irr+srr, std::less<int>(), &U::k) == false);
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}
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// Test rvalue ranges
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{
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S ia[] = {S{1}, S{2}, S{2}, S{3}, S{3}, S{3}, S{4}, S{4}, S{4}, S{4}};
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T ib[] = {T{2}, T{4}, T{4}, T{6}};
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static const int sb = sizeof(ib)/sizeof(ib[0]);
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U ic[20];
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int ir[] = {1, 2, 3, 3, 3, 4, 4};
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static const int sr = sizeof(ir)/sizeof(ir[0]);
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auto res = ranges::set_difference(std::move(ia), ranges::views::all(ib), ic, std::less<int>(), &S::i, &T::j);
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#ifndef RANGES_WORKAROUND_MSVC_573728
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CHECK(::is_dangling(res.in1));
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#endif // RANGES_WORKAROUND_MSVC_573728
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CHECK((res.out - ic) == sr);
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CHECK(ranges::lexicographical_compare(ic, res.out, ir, ir+sr, std::less<int>(), &U::k) == false);
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ranges::fill(ic, U{0});
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int irr[] = {6};
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static const int srr = sizeof(irr)/sizeof(irr[0]);
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auto res2 = ranges::set_difference(ranges::views::all(ib), ranges::views::all(ia), ic, std::less<int>(), &T::j, &S::i);
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CHECK((res2.in1 - ib) == sb);
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CHECK((res2.out - ic) == srr);
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CHECK(ranges::lexicographical_compare(ic, res2.out, ir, irr+srr, std::less<int>(), &U::k) == false);
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ranges::fill(ic, U{0});
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std::vector<S> vec{S{1}, S{2}, S{2}, S{3}, S{3}, S{3}, S{4}, S{4}, S{4}, S{4}};
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auto res3 = ranges::set_difference(std::move(vec), ranges::views::all(ib), ic, std::less<int>(), &S::i, &T::j);
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|
CHECK(::is_dangling(res3.in1));
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|
CHECK((res3.out - ic) == sr);
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|
CHECK(ranges::lexicographical_compare(ic, res3.out, ir, ir+sr, std::less<int>(), &U::k) == false);
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|
}
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|
|
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{
|
|
STATIC_CHECK(test_constexpr());
|
|
}
|
|
#endif
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|
|
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return ::test_result();
|
|
}
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