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64 lines
1.6 KiB
C++
64 lines
1.6 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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#include <vector>
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#include <range/v3/core.hpp>
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#include <range/v3/algorithm/for_each.hpp>
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#include "../array.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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void p() const { *p_ += i_; }
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int *p_;
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int i_;
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};
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constexpr int void_f(int const &)
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{
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return 3;
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}
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int main()
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{
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int sum = 0;
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auto fun = [&](int i){sum += i; };
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std::vector<int> v1 { 0, 2, 4, 6 };
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CHECK(ranges::for_each(v1.begin(), v1.end(), fun).in == v1.end());
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CHECK(ranges::for_each(v1, fun).in == v1.end());
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CHECK(sum == 24);
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sum = 0;
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auto rfun = [&](int & i){sum += i; };
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CHECK(ranges::for_each(v1.begin(), v1.end(), rfun).in == v1.end());
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CHECK(ranges::for_each(v1, rfun).in == v1.end());
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CHECK(sum == 24);
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sum = 0;
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std::vector<S> v2{{&sum, 0}, {&sum, 2}, {&sum, 4}, {&sum, 6}};
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CHECK(ranges::for_each(v2.begin(), v2.end(), &S::p).in == v2.end());
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CHECK(ranges::for_each(v2, &S::p).in == v2.end());
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CHECK(sum == 24);
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sum = 0;
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CHECK(::is_dangling(ranges::for_each(::MakeTestRange(v1.begin(), v1.end()), fun).in));
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CHECK(sum == 12);
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{
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constexpr auto rng = test::array<int, 4>{{0, 2, 4, 6}};
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STATIC_CHECK(ranges::for_each(rng, void_f).in == ranges::end(rng));
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}
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return ::test_result();
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}
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