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 cshift(int i) const; 15bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 16bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <valarray> 17bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <cassert> 18bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 19bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantint main() 20bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant{ 21bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant { 22bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant typedef int T; 23bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant T a1[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; 24bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant T a2[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; 25bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant const unsigned N1 = sizeof(a1)/sizeof(a1[0]); 26bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant std::valarray<T> v1(a1, N1); 27bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant std::valarray<T> v2 = v1.cshift(0); 28bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(v2.size() == N1); 29bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant for (unsigned i = 0; i < N1; ++i) 30bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(v2[i] == a2[i]); 31bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant } 32bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant { 33bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant typedef int T; 34bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant T a1[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; 35bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant T a2[] = {4, 5, 6, 7, 8, 9, 10, 1, 2, 3}; 36bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant const unsigned N1 = sizeof(a1)/sizeof(a1[0]); 37bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant std::valarray<T> v1(a1, N1); 38bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant std::valarray<T> v2 = v1.cshift(3); 39bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(v2.size() == N1); 40bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant for (unsigned i = 0; i < N1; ++i) 41bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(v2[i] == a2[i]); 42bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant } 43bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant { 44bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant typedef int T; 45bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant T a1[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; 46bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant T a2[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; 47bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant const unsigned N1 = sizeof(a1)/sizeof(a1[0]); 48bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant std::valarray<T> v1(a1, N1); 49bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant std::valarray<T> v2 = v1.cshift(10); 50bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(v2.size() == N1); 51bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant for (unsigned i = 0; i < N1; ++i) 52bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(v2[i] == a2[i]); 53bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant } 54bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant { 55bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant typedef int T; 56bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant T a1[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; 57bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant T a2[] = {8, 9, 10, 1, 2, 3, 4, 5, 6, 7}; 58bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant const unsigned N1 = sizeof(a1)/sizeof(a1[0]); 59bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant std::valarray<T> v1(a1, N1); 60bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant std::valarray<T> v2 = v1.cshift(17); 61bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(v2.size() == N1); 62bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant for (unsigned i = 0; i < N1; ++i) 63bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(v2[i] == a2[i]); 64bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant } 65bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant { 66bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant typedef int T; 67bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant T a1[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; 68bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant T a2[] = {8, 9, 10, 1, 2, 3, 4, 5, 6, 7}; 69bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant const unsigned N1 = sizeof(a1)/sizeof(a1[0]); 70bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant std::valarray<T> v1(a1, N1); 71bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant std::valarray<T> v2 = v1.cshift(-3); 72bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(v2.size() == N1); 73bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant for (unsigned i = 0; i < N1; ++i) 74bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(v2[i] == a2[i]); 75bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant } 76bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant { 77bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant typedef int T; 78bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant T a1[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; 79bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant T a2[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; 80bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant const unsigned N1 = sizeof(a1)/sizeof(a1[0]); 81bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant std::valarray<T> v1(a1, N1); 82bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant std::valarray<T> v2 = v1.cshift(-10); 83bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(v2.size() == N1); 84bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant for (unsigned i = 0; i < N1; ++i) 85bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(v2[i] == a2[i]); 86bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant } 87bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant { 88bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant typedef int T; 89bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant T a1[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; 90bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant T a2[] = {4, 5, 6, 7, 8, 9, 10, 1, 2, 3}; 91bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant const unsigned N1 = sizeof(a1)/sizeof(a1[0]); 92bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant std::valarray<T> v1(a1, N1); 93bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant std::valarray<T> v2 = v1.cshift(-17); 94bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(v2.size() == N1); 95bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant for (unsigned i = 0; i < N1; ++i) 96bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(v2[i] == a2[i]); 97bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant } 98bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant { 99bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant typedef int T; 100bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant const unsigned N1 = 0; 101bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant std::valarray<T> v1; 102bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant std::valarray<T> v2 = v1.cshift(-17); 103bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(v2.size() == N1); 104bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant } 105bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant { 106bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant typedef int T; 107bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant T a1[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; 108bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant T a2[] = {8, 10, 12, 14, 16, 18, 20, 2, 4, 6}; 109bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant const unsigned N1 = sizeof(a1)/sizeof(a1[0]); 110bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant std::valarray<T> v1(a1, N1); 111bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant std::valarray<T> v2 = (v1 + v1).cshift(3); 112bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(v2.size() == N1); 113bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant for (unsigned i = 0; i < N1; ++i) 114bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(v2[i] == a2[i]); 115bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant } 116bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant { 117bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant typedef int T; 118bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant T a1[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; 119bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant T a2[] = {16, 18, 20, 2, 4, 6, 8, 10, 12, 14}; 120bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant const unsigned N1 = sizeof(a1)/sizeof(a1[0]); 121bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant std::valarray<T> v1(a1, N1); 122bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant std::valarray<T> v2 = (v1 + v1).cshift(-3); 123bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(v2.size() == N1); 124bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant for (unsigned i = 0; i < N1; ++i) 125bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(v2[i] == a2[i]); 126bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant } 127bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant} 128