38 lines
		
	
	
		
			975 B
		
	
	
	
		
			C++
		
	
	
	
			
		
		
	
	
			38 lines
		
	
	
		
			975 B
		
	
	
	
		
			C++
		
	
	
	
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// <valarray>
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// template<class T> class valarray;
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// valarray& operator+=(const value_type& x);
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#include <valarray>
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#include <cassert>
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#include <cstddef>
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#include "test_macros.h"
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int main(int, char**)
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{
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    {
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        typedef int T;
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        T a1[] = {1,  2,  3,  4,  5};
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        T a2[] = {4,  5,  6,  7,  8};
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        const unsigned N = sizeof(a1)/sizeof(a1[0]);
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        std::valarray<T> v1(a1, N);
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        std::valarray<T> v2(a2, N);
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        v1 += 3;
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        assert(v1.size() == v2.size());
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        for (std::size_t i = 0; i < v1.size(); ++i)
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            assert(v1[i] == v2[i]);
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    }
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  return 0;
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}
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