erase_if.pass.cpp (2103B)
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(map<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[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 61 test0<S>({1,2,3}, is1, {2,3}); 62 test0<S>({1,2,3}, is2, {1,3}); 63 test0<S>({1,2,3}, is3, {1,2}); 64 test0<S>({1,2,3}, is4, {1,2,3}); 65 66 test0<S>({1,2,3}, True, {}); 67 test0<S>({1,2,3}, False, {1,2,3}); 68 } 69 70 int main() 71 { 72 test<std::map<int, int>>(); 73 test<std::map<int, int, std::less<int>, min_allocator<std::pair<const int, int>>>> (); 74 test<std::map<int, int, std::less<int>, test_allocator<std::pair<const int, int>>>> (); 75 76 test<std::map<long, short>>(); 77 test<std::map<short, double>>(); 78 } 79