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76 lines
2.6 KiB
C++
76 lines
2.6 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 <range/v3/core.hpp>
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#include <range/v3/numeric/accumulate.hpp>
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#include "../simple_test.hpp"
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#include "../test_iterators.hpp"
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struct S
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{
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int i;
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S add(int j) const
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{
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return S{i + j};
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}
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};
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template<class Iter, class Sent = Iter>
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void test()
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{
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int ia[] = {1, 2, 3, 4, 5, 6};
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constexpr auto sc = ranges::size(ia);
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CHECK(ranges::accumulate(Iter(ia), Sent(ia), 0) == 0);
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CHECK(ranges::accumulate(Iter(ia), Sent(ia), 10) == 10);
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CHECK(ranges::accumulate(Iter(ia), Sent(ia+1), 0) == 1);
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CHECK(ranges::accumulate(Iter(ia), Sent(ia+1), 10) == 11);
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CHECK(ranges::accumulate(Iter(ia), Sent(ia+2), 0) == 3);
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CHECK(ranges::accumulate(Iter(ia), Sent(ia+2), 10) == 13);
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CHECK(ranges::accumulate(Iter(ia), Sent(ia+sc), 0) == 21);
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CHECK(ranges::accumulate(Iter(ia), Sent(ia+sc), 10) == 31);
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using ranges::make_subrange;
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CHECK(ranges::accumulate(make_subrange(Iter(ia), Sent(ia)), 0) == 0);
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CHECK(ranges::accumulate(make_subrange(Iter(ia), Sent(ia)), 10) == 10);
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CHECK(ranges::accumulate(make_subrange(Iter(ia), Sent(ia+1)), 0) == 1);
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CHECK(ranges::accumulate(make_subrange(Iter(ia), Sent(ia+1)), 10) == 11);
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CHECK(ranges::accumulate(make_subrange(Iter(ia), Sent(ia+2)), 0) == 3);
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CHECK(ranges::accumulate(make_subrange(Iter(ia), Sent(ia+2)), 10) == 13);
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CHECK(ranges::accumulate(make_subrange(Iter(ia), Sent(ia+sc)), 0) == 21);
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CHECK(ranges::accumulate(make_subrange(Iter(ia), Sent(ia+sc)), 10) == 31);
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}
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int main()
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{
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test<InputIterator<const int*> >();
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test<ForwardIterator<const int*> >();
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test<BidirectionalIterator<const int*> >();
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test<RandomAccessIterator<const int*> >();
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test<const int*>();
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test<InputIterator<const int*>, Sentinel<const int*> >();
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test<ForwardIterator<const int*>, Sentinel<const int*> >();
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test<BidirectionalIterator<const int*>, Sentinel<const int*> >();
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test<RandomAccessIterator<const int*>, Sentinel<const int*> >();
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return ::test_result();
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}
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