54 lines
1.4 KiB
C++
54 lines
1.4 KiB
C++
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//
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// immer: immutable data structures for C++
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// Copyright (C) 2016, 2017, 2018 Juan Pedro Bolivar Puente
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//
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// This software is distributed under the Boost Software License, Version 1.0.
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// See accompanying file LICENSE or copy at http://boost.org/LICENSE_1_0.txt
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//
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#include <cassert>
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#include <immer/vector.hpp>
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int main()
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{
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{
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// include:push-back/start
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auto v1 = immer::vector<int>{1};
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auto v2 = v1.push_back(8);
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assert((v1 == immer::vector<int>{1}));
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assert((v2 == immer::vector<int>{1, 8}));
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// include:push-back/end
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}
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{
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// include:set/start
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auto v1 = immer::vector<int>{1, 2, 3};
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auto v2 = v1.set(0, 5);
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assert((v1 == immer::vector<int>{1, 2, 3}));
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assert((v2 == immer::vector<int>{5, 2, 3}));
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// include:set/end
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}
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{
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// include:update/start
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auto v1 = immer::vector<int>{1, 2, 3, 4};
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auto v2 = v1.update(2, [&](auto l) { return ++l; });
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assert((v1 == immer::vector<int>{1, 2, 3, 4}));
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assert((v2 == immer::vector<int>{1, 2, 4, 4}));
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// include:update/end
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}
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{
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// include:take/start
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auto v1 = immer::vector<int>{1, 2, 3, 4, 5, 6};
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auto v2 = v1.take(3);
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assert((v1 == immer::vector<int>{1, 2, 3, 4, 5, 6}));
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assert((v2 == immer::vector<int>{1, 2, 3}));
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// include:take/end
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}
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}
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