| 1 | //===----------------------------------------------------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | // <valarray> |
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| 10 | |
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| 11 | // template<class T> class valarray; |
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| 12 | |
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| 13 | // valarray& operator-=(const value_type& x); |
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| 14 | |
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| 15 | #include <valarray> |
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| 16 | #include <cassert> |
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| 17 | #include <cstddef> |
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| 18 | |
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| 19 | #include "test_macros.h" |
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| 20 | |
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| 21 | int main(int, char**) |
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| 22 | { |
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| 23 | { |
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| 24 | typedef int T; |
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| 25 | T a1[] = { 1, 2, 3, 4, 5}; |
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| 26 | T a2[] = {-2, -1, 0, 1, 2}; |
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| 27 | const unsigned N = sizeof(a1)/sizeof(a1[0]); |
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| 28 | std::valarray<T> v1(a1, N); |
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| 29 | std::valarray<T> v2(a2, N); |
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| 30 | v1 -= 3; |
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| 31 | assert(v1.size() == v2.size()); |
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| 32 | for (std::size_t i = 0; i < v1.size(); ++i) |
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| 33 | assert(v1[i] == v2[i]); |
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| 34 | } |
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| 35 | |
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| 36 | return 0; |
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| 37 | } |
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| 38 | |
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