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 22 int 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
