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-exception
6//
7//===----------------------------------------------------------------------===//
8
9// <valarray>
10
11// template<class T> class valarray;
12
13// valarray(const value_type* p, size_t n);
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 assert(v.size() == N);
29 for (unsigned i = 0; i < N; ++i)
30 assert(v[i] == a[i]);
31 }
32 {
33 typedef double T;
34 T a[] = {1, 2.5, 3, 4.25, 5};
35 const unsigned N = sizeof(a)/sizeof(a[0]);
36 std::valarray<T> v(a, N);
37 assert(v.size() == N);
38 for (unsigned i = 0; i < N; ++i)
39 assert(v[i] == a[i]);
40 }
41 {
42 typedef std::valarray<double> T;
43 T a[] = {T(1), T(2), T(3), T(4), T(5)};
44 const unsigned N = sizeof(a)/sizeof(a[0]);
45 std::valarray<T> v(a, N);
46 assert(v.size() == N);
47 for (unsigned i = 0; i < N; ++i)
48 {
49 assert(v[i].size() == a[i].size());
50 for (std::size_t j = 0; j < v[i].size(); ++j)
51 assert(v[i][j] == a[i][j]);
52 }
53 }
54
55 return 0;
56}
57

source code of libcxx/test/std/numerics/numarray/template.valarray/valarray.cons/pointer_size.pass.cpp