1 //===----------------------------------------------------------------------===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 // <valarray>
11 
12 // template<class T> class valarray;
13 
14 // void resize(size_t n, value_type x = value_type());
15 
16 #include <valarray>
17 #include <cassert>
18 #include <cstddef>
19 
main()20 int main()
21 {
22     {
23         typedef int T;
24         T a1[] = {1, 2, 3, 4, 5};
25         const unsigned N1 = sizeof(a1)/sizeof(a1[0]);
26         std::valarray<T> v1(a1, N1);
27         v1.resize(8);
28         assert(v1.size() == 8);
29         for (std::size_t i = 0; i < v1.size(); ++i)
30             assert(v1[i] == 0);
31         v1.resize(0);
32         assert(v1.size() == 0);
33         v1.resize(80);
34         assert(v1.size() == 80);
35         for (std::size_t i = 0; i < v1.size(); ++i)
36             assert(v1[i] == 0);
37         v1.resize(40);
38         assert(v1.size() == 40);
39         for (std::size_t i = 0; i < v1.size(); ++i)
40             assert(v1[i] == 0);
41     }
42 }
43