22 lines
		
	
	
	
		
			609 B
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			22 lines
		
	
	
	
		
			609 B
		
	
	
	
		
			C++
		
	
	
	
	
	
//
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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:intro/start
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#include <immer/vector.hpp>
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int main()
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{
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    const auto v0 = immer::vector<int>{};
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    const auto v1 = v0.push_back(13);
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    assert((v0 == immer::vector<int>{}));
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    assert((v1 == immer::vector<int>{13}));
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    const auto v2 = v1.set(0, 42);
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    assert(v1[0] == 13);
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    assert(v2[0] == 42);
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}
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// include:intro/end
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