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 // valarray& operator-=(const value_type& x);
15
16 #include <valarray>
17 #include <cassert>
18
main()19 int main()
20 {
21 {
22 typedef int T;
23 T a1[] = { 1, 2, 3, 4, 5};
24 T a2[] = {-2, -1, 0, 1, 2};
25 const unsigned N = sizeof(a1)/sizeof(a1[0]);
26 std::valarray<T> v1(a1, N);
27 std::valarray<T> v2(a2, N);
28 v1 -= 3;
29 assert(v1.size() == v2.size());
30 for (int i = 0; i < v1.size(); ++i)
31 assert(v1[i] == v2[i]);
32 }
33 }
34