erase_if.pass.cpp (2513B)
1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // UNSUPPORTED: c++98, c++03, c++11, c++14, c++17 10 11 // <map> 12 13 // template <class Key, class T, class Compare, class Allocator, class Predicate> 14 // void erase_if(multimap<Key, T, Compare, Allocator>& c, Predicate pred); 15 16 #include <map> 17 18 #include "test_macros.h" 19 #include "test_allocator.h" 20 #include "min_allocator.h" 21 22 using Init = std::initializer_list<int>; 23 template <typename M> 24 M make (Init vals) 25 { 26 M ret; 27 for (int v : vals) 28 ret.insert(typename M::value_type(v, v + 10)); 29 return ret; 30 } 31 32 template <typename M, typename Pred> 33 void 34 test0(Init vals, Pred p, Init expected) 35 { 36 M s = make<M> (vals); 37 ASSERT_SAME_TYPE(void, decltype(std::erase_if(s, p))); 38 std::erase_if(s, p); 39 assert(s == make<M>(expected)); 40 } 41 42 template <typename S> 43 void test() 44 { 45 auto is1 = [](auto v) { return v.first == 1;}; 46 auto is2 = [](auto v) { return v.first == 2;}; 47 auto is3 = [](auto v) { return v.first == 3;}; 48 auto is4 = [](auto v) { return v.first == 4;}; 49 auto True = [](auto) { return true; }; 50 auto False = [](auto) { return false; }; 51 52 test0<S>({}, is1, {}); 53 54 test0<S>({1}, is1, {}); 55 test0<S>({1}, is2, {1}); 56 57 test0<S>({1,2}, is1, {2}); 58 test0<S>({1,2}, is2, {1}); 59 test0<S>({1,2}, is3, {1,2}); 60 test0<S>({1,1}, is1, {}); 61 test0<S>({1,1}, is3, {1,1}); 62 63 test0<S>({1,2,3}, is1, {2,3}); 64 test0<S>({1,2,3}, is2, {1,3}); 65 test0<S>({1,2,3}, is3, {1,2}); 66 test0<S>({1,2,3}, is4, {1,2,3}); 67 68 test0<S>({1,1,1}, is1, {}); 69 test0<S>({1,1,1}, is2, {1,1,1}); 70 test0<S>({1,1,2}, is1, {2}); 71 test0<S>({1,1,2}, is2, {1,1}); 72 test0<S>({1,1,2}, is3, {1,1,2}); 73 test0<S>({1,2,2}, is1, {2,2}); 74 test0<S>({1,2,2}, is2, {1}); 75 test0<S>({1,2,2}, is3, {1,2,2}); 76 77 test0<S>({1,2,3}, True, {}); 78 test0<S>({1,2,3}, False, {1,2,3}); 79 } 80 81 int main() 82 { 83 test<std::multimap<int, int>>(); 84 test<std::multimap<int, int, std::less<int>, min_allocator<std::pair<const int, int>>>> (); 85 test<std::multimap<int, int, std::less<int>, test_allocator<std::pair<const int, int>>>> (); 86 87 test<std::multimap<long, short>>(); 88 test<std::multimap<short, double>>(); 89 }