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80 lines
2.1 KiB
C++
80 lines
2.1 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// UNSUPPORTED: c++98, c++03, c++11, c++14, c++17
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// <map>
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// template <class Key, class T, class Compare, class Allocator, class Predicate>
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// void erase_if(map<Key, T, Compare, Allocator>& c, Predicate pred);
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#include <map>
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#include "test_macros.h"
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#include "test_allocator.h"
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#include "min_allocator.h"
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using Init = std::initializer_list<int>;
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template <typename M>
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M make (Init vals)
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{
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M ret;
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for (int v : vals)
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ret[v] = v + 10;
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return ret;
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}
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template <typename M, typename Pred>
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void
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test0(Init vals, Pred p, Init expected)
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{
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M s = make<M> (vals);
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ASSERT_SAME_TYPE(void, decltype(std::erase_if(s, p)));
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std::erase_if(s, p);
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assert(s == make<M>(expected));
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}
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template <typename S>
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void test()
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{
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auto is1 = [](auto v) { return v.first == 1;};
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auto is2 = [](auto v) { return v.first == 2;};
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auto is3 = [](auto v) { return v.first == 3;};
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auto is4 = [](auto v) { return v.first == 4;};
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auto True = [](auto) { return true; };
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auto False = [](auto) { return false; };
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test0<S>({}, is1, {});
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test0<S>({1}, is1, {});
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test0<S>({1}, is2, {1});
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test0<S>({1,2}, is1, {2});
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test0<S>({1,2}, is2, {1});
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test0<S>({1,2}, is3, {1,2});
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test0<S>({1,2,3}, is1, {2,3});
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test0<S>({1,2,3}, is2, {1,3});
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test0<S>({1,2,3}, is3, {1,2});
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test0<S>({1,2,3}, is4, {1,2,3});
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test0<S>({1,2,3}, True, {});
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test0<S>({1,2,3}, False, {1,2,3});
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}
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int main()
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{
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test<std::map<int, int>>();
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test<std::map<int, int, std::less<int>, min_allocator<std::pair<const int, int>>>> ();
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test<std::map<int, int, std::less<int>, test_allocator<std::pair<const int, int>>>> ();
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test<std::map<long, short>>();
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test<std::map<short, double>>();
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}
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