erase_iter.pass.cpp revision bc8d3f97eb5c958007f2713238472e0c1c8fe02
1bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant//===----------------------------------------------------------------------===// 2bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// 3bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// ��������������������The LLVM Compiler Infrastructure 4bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// 5bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// This file is distributed under the University of Illinois Open Source 6bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// License. See LICENSE.TXT for details. 7bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// 8bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant//===----------------------------------------------------------------------===// 9bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 10bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// <set> 11bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 12bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// class multiset 13bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 14bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// iterator erase(const_iterator position); 15bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 16bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <set> 17bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <cassert> 18bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 19bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantint main() 20bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant{ 21bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant { 22bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant typedef std::multiset<int> M; 23bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant typedef int V; 24bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant typedef M::iterator I; 25bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant V ar[] = 26bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant { 27bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 1, 28bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 2, 29bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 3, 30bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 4, 31bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 5, 32bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 6, 33bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 7, 34bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 8 35bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant }; 36bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant M m(ar, ar + sizeof(ar)/sizeof(ar[0])); 37bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(m.size() == 8); 38bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant I i = m.erase(next(m.cbegin(), 3)); 39bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(m.size() == 7); 40bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(i == next(m.begin(), 3)); 41bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(*next(m.begin(), 0) == 1); 42bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(*next(m.begin(), 1) == 2); 43bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(*next(m.begin(), 2) == 3); 44bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(*next(m.begin(), 3) == 5); 45bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(*next(m.begin(), 4) == 6); 46bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(*next(m.begin(), 5) == 7); 47bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(*next(m.begin(), 6) == 8); 48bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 49bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant i = m.erase(next(m.cbegin(), 0)); 50bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(m.size() == 6); 51bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(i == m.begin()); 52bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(*next(m.begin(), 0) == 2); 53bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(*next(m.begin(), 1) == 3); 54bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(*next(m.begin(), 2) == 5); 55bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(*next(m.begin(), 3) == 6); 56bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(*next(m.begin(), 4) == 7); 57bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(*next(m.begin(), 5) == 8); 58bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 59bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant i = m.erase(next(m.cbegin(), 5)); 60bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(m.size() == 5); 61bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(i == m.end()); 62bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(*next(m.begin(), 0) == 2); 63bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(*next(m.begin(), 1) == 3); 64bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(*next(m.begin(), 2) == 5); 65bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(*next(m.begin(), 3) == 6); 66bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(*next(m.begin(), 4) == 7); 67bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 68bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant i = m.erase(next(m.cbegin(), 1)); 69bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(m.size() == 4); 70bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(i == next(m.begin())); 71bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(*next(m.begin(), 0) == 2); 72bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(*next(m.begin(), 1) == 5); 73bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(*next(m.begin(), 2) == 6); 74bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(*next(m.begin(), 3) == 7); 75bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 76bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant i = m.erase(next(m.cbegin(), 2)); 77bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(m.size() == 3); 78bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(i == next(m.begin(), 2)); 79bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(*next(m.begin(), 0) == 2); 80bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(*next(m.begin(), 1) == 5); 81bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(*next(m.begin(), 2) == 7); 82bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 83bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant i = m.erase(next(m.cbegin(), 2)); 84bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(m.size() == 2); 85bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(i == next(m.begin(), 2)); 86bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(*next(m.begin(), 0) == 2); 87bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(*next(m.begin(), 1) == 5); 88bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 89bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant i = m.erase(next(m.cbegin(), 0)); 90bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(m.size() == 1); 91bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(i == next(m.begin(), 0)); 92bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(*next(m.begin(), 0) == 5); 93bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 94bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant i = m.erase(m.cbegin()); 95bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(m.size() == 0); 96bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(i == m.begin()); 97bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(i == m.end()); 98bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant } 99bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant} 100