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 // valarray<T>
16 // abs(const valarray<T>& x);
17
18 #include <valarray>
19 #include <cassert>
20
main()21 int main()
22 {
23 {
24 typedef double T;
25 T a1[] = {1.5, -2.5, 3.4, -4.5, -5.0};
26 T a3[] = {1.5, 2.5, 3.4, 4.5, 5.0};
27 const unsigned N = sizeof(a1)/sizeof(a1[0]);
28 std::valarray<T> v1(a1, N);
29 std::valarray<T> v3 = abs(v1);
30 assert(v3.size() == v1.size());
31 for (int i = 0; i < v3.size(); ++i)
32 assert(v3[i] == a3[i]);
33 }
34 }
35