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// <deque> 11bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 12bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// reference operator[](size_type __i); 13bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// const_reference operator[](size_type __i) const; 146046aced820aaab4f14f2026531dd11d10690691Howard Hinnant// 15bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// reference at(size_type __i); 16bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// const_reference at(size_type __i) const; 176046aced820aaab4f14f2026531dd11d10690691Howard Hinnant// 18bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// reference front(); 19bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// const_reference front() const; 206046aced820aaab4f14f2026531dd11d10690691Howard Hinnant// 21bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// reference back(); 22bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// const_reference back() const; 23bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 24bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <deque> 25bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <cassert> 26bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 27061d0cc4db18d17bf01ed14c5db0be098205bd47Marshall Clow#include "min_allocator.h" 28fcd8db7133c56a5a627f3922ce4a180c12287dd9Howard Hinnant 29fcd8db7133c56a5a627f3922ce4a180c12287dd9Howard Hinnanttemplate <class C> 30fcd8db7133c56a5a627f3922ce4a180c12287dd9Howard HinnantC 31bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantmake(int size, int start = 0 ) 32bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant{ 33bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant const int b = 4096 / sizeof(int); 34bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant int init = 0; 35bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant if (start > 0) 36bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant { 37bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant init = (start+1) / b + ((start+1) % b != 0); 38bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant init *= b; 39bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant --init; 40bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant } 41fcd8db7133c56a5a627f3922ce4a180c12287dd9Howard Hinnant C c(init, 0); 42bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant for (int i = 0; i < init-start; ++i) 43bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant c.pop_back(); 44bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant for (int i = 0; i < size; ++i) 45bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant c.push_back(i); 46bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant for (int i = 0; i < start; ++i) 47bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant c.pop_front(); 48bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant return c; 49bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant}; 50bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 51bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantint main() 52bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant{ 53bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant { 54fcd8db7133c56a5a627f3922ce4a180c12287dd9Howard Hinnant std::deque<int> c = make<std::deque<int> >(10); 55fcd8db7133c56a5a627f3922ce4a180c12287dd9Howard Hinnant for (unsigned i = 0; i < 10; ++i) 56fcd8db7133c56a5a627f3922ce4a180c12287dd9Howard Hinnant assert(c[i] == i); 57fcd8db7133c56a5a627f3922ce4a180c12287dd9Howard Hinnant for (unsigned i = 0; i < 10; ++i) 58fcd8db7133c56a5a627f3922ce4a180c12287dd9Howard Hinnant assert(c.at(i) == i); 59fcd8db7133c56a5a627f3922ce4a180c12287dd9Howard Hinnant assert(c.front() == 0); 60fcd8db7133c56a5a627f3922ce4a180c12287dd9Howard Hinnant assert(c.back() == 9); 61fcd8db7133c56a5a627f3922ce4a180c12287dd9Howard Hinnant } 62fcd8db7133c56a5a627f3922ce4a180c12287dd9Howard Hinnant { 63fcd8db7133c56a5a627f3922ce4a180c12287dd9Howard Hinnant const std::deque<int> c = make<std::deque<int> >(10); 64fcd8db7133c56a5a627f3922ce4a180c12287dd9Howard Hinnant for (unsigned i = 0; i < 10; ++i) 65fcd8db7133c56a5a627f3922ce4a180c12287dd9Howard Hinnant assert(c[i] == i); 66fcd8db7133c56a5a627f3922ce4a180c12287dd9Howard Hinnant for (unsigned i = 0; i < 10; ++i) 67fcd8db7133c56a5a627f3922ce4a180c12287dd9Howard Hinnant assert(c.at(i) == i); 68fcd8db7133c56a5a627f3922ce4a180c12287dd9Howard Hinnant assert(c.front() == 0); 69fcd8db7133c56a5a627f3922ce4a180c12287dd9Howard Hinnant assert(c.back() == 9); 70fcd8db7133c56a5a627f3922ce4a180c12287dd9Howard Hinnant } 71fcd8db7133c56a5a627f3922ce4a180c12287dd9Howard Hinnant#if __cplusplus >= 201103L 72fcd8db7133c56a5a627f3922ce4a180c12287dd9Howard Hinnant { 73fcd8db7133c56a5a627f3922ce4a180c12287dd9Howard Hinnant std::deque<int, min_allocator<int>> c = make<std::deque<int, min_allocator<int>> >(10); 74bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant for (unsigned i = 0; i < 10; ++i) 75bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(c[i] == i); 76bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant for (unsigned i = 0; i < 10; ++i) 77bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(c.at(i) == i); 78bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(c.front() == 0); 79bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(c.back() == 9); 80bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant } 81bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant { 82fcd8db7133c56a5a627f3922ce4a180c12287dd9Howard Hinnant const std::deque<int, min_allocator<int>> c = make<std::deque<int, min_allocator<int>> >(10); 83bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant for (unsigned i = 0; i < 10; ++i) 84bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(c[i] == i); 85bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant for (unsigned i = 0; i < 10; ++i) 86bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(c.at(i) == i); 87bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(c.front() == 0); 88bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(c.back() == 9); 89bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant } 90fcd8db7133c56a5a627f3922ce4a180c12287dd9Howard Hinnant#endif 91bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant} 92