60 lines · cpp
1//===----------------------------------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9// <valarray>10 11// template<class T> class valarray;12 13// valarray(const valarray<value_type>& v);14 15#include <valarray>16#include <cassert>17#include <cstddef>18 19#include "test_macros.h"20 21int main(int, char**)22{23 {24 typedef int T;25 T a[] = {1, 2, 3, 4, 5};26 const unsigned N = sizeof(a)/sizeof(a[0]);27 std::valarray<T> v(a, N);28 std::valarray<T> v2 = v;29 assert(v2.size() == v.size());30 for (std::size_t i = 0; i < v2.size(); ++i)31 assert(v2[i] == v[i]);32 }33 {34 typedef double T;35 T a[] = {1, 2.5, 3, 4.25, 5};36 const unsigned N = sizeof(a)/sizeof(a[0]);37 std::valarray<T> v(a, N);38 std::valarray<T> v2 = v;39 assert(v2.size() == v.size());40 for (std::size_t i = 0; i < v2.size(); ++i)41 assert(v2[i] == v[i]);42 }43 {44 typedef std::valarray<double> T;45 T a[] = {T(1), T(2), T(3), T(4), T(5)};46 const unsigned N = sizeof(a)/sizeof(a[0]);47 std::valarray<T> v(a, N);48 std::valarray<T> v2 = v;49 assert(v2.size() == v.size());50 for (unsigned i = 0; i < N; ++i)51 {52 assert(v2[i].size() == v[i].size());53 for (std::size_t j = 0; j < v[i].size(); ++j)54 assert(v2[i][j] == v[i][j]);55 }56 }57 58 return 0;59}60