1 //===----------------------------------------------------------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
12 // template<class T> class valarray;
16 // cosh(const valarray<T>& x);
23 bool is_about(double x, double y, int p)
29 std::string a = o.str();
39 T a1[] = {-.9, -.5, 0., .5, .75};
40 T a3[] = {1.4330863854487743e+00,
41 1.1276259652063807e+00,
42 1.0000000000000000e+00,
43 1.1276259652063807e+00,
44 1.2946832846768448e+00};
45 const unsigned N = sizeof(a1)/sizeof(a1[0]);
46 std::valarray<T> v1(a1, N);
47 std::valarray<T> v3 = cosh(v1);
48 assert(v3.size() == v1.size());
49 for (std::size_t i = 0; i < v3.size(); ++i)
50 assert(is_about(v3[i], a3[i], 10));