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 // template <class T>
15 //   unspecified1
16 //   begin(valarray<T>& v);
17 
18 #include <valarray>
19 #include <cassert>
20 
21 int main()
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         *begin(v) = 10;
29         assert(v[0] == 10);
30     }
31 }
32