1bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant//===----------------------------------------------------------------------===// 2bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// 3f5256e16dfc425c1d466f6308d4026d529ce9e0bHoward Hinnant// The LLVM Compiler Infrastructure 4bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// 5b64f8b07c104c6cc986570ac8ee0ed16a9f23976Howard Hinnant// This file is dual licensed under the MIT and the University of Illinois Open 6b64f8b07c104c6cc986570ac8ee0ed16a9f23976Howard Hinnant// Source Licenses. See LICENSE.TXT for details. 7bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// 8bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant//===----------------------------------------------------------------------===// 9bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 10bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// <valarray> 11bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 12bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// template<class T> class valarray; 13bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 14bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// valarray operator-() const; 15bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 16bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <valarray> 17bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <cassert> 18a9bcd3dae859f02ab496d175d50840f43a2d4ed2Stephan T. Lavavej#include <cstddef> 19bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 20bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantint main() 21bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant{ 22bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant { 23bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant typedef int T; 24bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant T a[] = {1, 2, 3, 4, 5}; 25bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant const unsigned N = sizeof(a)/sizeof(a[0]); 26bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant std::valarray<T> v(a, N); 27bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant std::valarray<T> v2 = -v; 28bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(v2.size() == v.size()); 29a9bcd3dae859f02ab496d175d50840f43a2d4ed2Stephan T. Lavavej for (std::size_t i = 0; i < v2.size(); ++i) 30bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(v2[i] == -v[i]); 31bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant } 32bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant { 33bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant typedef double T; 34bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant T a[] = {1, 2.5, 3, 4.25, 5}; 35bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant const unsigned N = sizeof(a)/sizeof(a[0]); 36bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant std::valarray<T> v(a, N); 37bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant std::valarray<T> v2 = -v; 38bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(v2.size() == v.size()); 39a9bcd3dae859f02ab496d175d50840f43a2d4ed2Stephan T. Lavavej for (std::size_t i = 0; i < v2.size(); ++i) 40bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(v2[i] == -v[i]); 41bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant } 42bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant { 43bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant typedef std::valarray<double> T; 44bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant T a[] = {T(1), T(2), T(3), T(4), T(5)}; 45bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant const unsigned N = sizeof(a)/sizeof(a[0]); 46bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant std::valarray<T> v(a, N); 47bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant std::valarray<T> v2 = -v; 48bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(v2.size() == v.size()); 49a2cd27094316a83e188727fe0478b5f0dfd0a055Eric Fiselier for (unsigned i = 0; i < N; ++i) 50bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant { 51bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(v2[i].size() == v[i].size()); 52a9bcd3dae859f02ab496d175d50840f43a2d4ed2Stephan T. Lavavej for (std::size_t j = 0; j < v[i].size(); ++j) 53bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(v2[i][j] == -v[i][j]); 54bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant } 55bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant } 56bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant { 57bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant typedef double T; 58bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant T a[] = {1, 2.5, 3, 4.25, 5}; 59bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant const unsigned N = sizeof(a)/sizeof(a[0]); 60bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant std::valarray<T> v(a, N); 61bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant std::valarray<T> v2 = -(v + v); 62bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(v2.size() == v.size()); 63a9bcd3dae859f02ab496d175d50840f43a2d4ed2Stephan T. Lavavej for (std::size_t i = 0; i < v2.size(); ++i) 64bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(v2[i] == -2*v[i]); 65bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant } 66bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant} 67