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#include <cstddef> 21 22int main() 23{ 24 { 25 typedef double T; 26 T a1[] = {1.5, -2.5, 3.4, -4.5, -5.0}; 27 T a3[] = {1.5, 2.5, 3.4, 4.5, 5.0}; 28 const unsigned N = sizeof(a1)/sizeof(a1[0]); 29 std::valarray<T> v1(a1, N); 30 std::valarray<T> v3 = abs(v1); 31 assert(v3.size() == v1.size()); 32 for (std::size_t i = 0; i < v3.size(); ++i) 33 assert(v3[i] == a3[i]); 34 } 35} 36