deduct_const.pass.cpp
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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// <map>
// UNSUPPORTED: c++03, c++11, c++14
// UNSUPPORTED: libcpp-no-deduction-guides
// template<class InputIterator,
// class Compare = less<iter-value-type<InputIterator>>,
// class Allocator = allocator<iter-value-type<InputIterator>>>
// multimap(InputIterator, InputIterator,
// Compare = Compare(), Allocator = Allocator())
// -> multimap<iter-value-type<InputIterator>, Compare, Allocator>;
// template<class Key, class Compare = less<Key>, class Allocator = allocator<Key>>
// multimap(initializer_list<Key>, Compare = Compare(), Allocator = Allocator())
// -> multimap<Key, Compare, Allocator>;
// template<class InputIterator, class Allocator>
// multimap(InputIterator, InputIterator, Allocator)
// -> multimap<iter-value-type<InputIterator>, less<iter-value-type<InputIterator>>, Allocator>;
// template<class Key, class Allocator>
// multimap(initializer_list<Key>, Allocator)
// -> multimap<Key, less<Key>, Allocator>;
#include <algorithm> // std::equal
#include <cassert>
#include <climits> // INT_MAX
#include <functional>
#include <map>
#include <type_traits>
#include "test_allocator.h"
using P = std::pair<int, long>;
using PC = std::pair<const int, long>;
using PCC = std::pair<const int, const long>;
int main(int, char**)
{
{
const PCC arr[] = { {1,1L}, {2,2L}, {1,1L}, {INT_MAX,1L}, {3,1L} };
std::multimap m(std::begin(arr), std::end(arr));
ASSERT_SAME_TYPE(decltype(m), std::multimap<int, const long>);
const PCC expected_m[] = { {1,1L}, {1,1L}, {2,2L}, {3,1L}, {INT_MAX,1L} };
assert(std::equal(m.begin(), m.end(), std::begin(expected_m), std::end(expected_m)));
}
{
const PCC arr[] = { {1,1L}, {2,2L}, {1,1L}, {INT_MAX,1L}, {3,1L} };
std::multimap m(std::begin(arr), std::end(arr), std::greater<int>());
ASSERT_SAME_TYPE(decltype(m), std::multimap<int, const long, std::greater<int>>);
const PCC expected_m[] = { {INT_MAX,1L}, {3,1L}, {2,2L}, {1,1L}, {1,1L} };
assert(std::equal(m.begin(), m.end(), std::begin(expected_m), std::end(expected_m)));
}
{
const PCC arr[] = { {1,1L}, {2,2L}, {1,1L}, {INT_MAX,1L}, {3,1L} };
std::multimap m(std::begin(arr), std::end(arr), std::greater<int>(), test_allocator<PCC>(0, 42));
ASSERT_SAME_TYPE(decltype(m), std::multimap<int, const long, std::greater<int>, test_allocator<PCC>>);
const PCC expected_m[] = { {INT_MAX,1L}, {3,1L}, {2,2L}, {1,1L}, {1,1L} };
assert(std::equal(m.begin(), m.end(), std::begin(expected_m), std::end(expected_m)));
assert(m.get_allocator().get_id() == 42);
}
{
std::multimap m{ PC{1,1L}, PC{2,2L}, PC{1,1L}, PC{INT_MAX,1L}, PC{3,1L} };
ASSERT_SAME_TYPE(decltype(m), std::multimap<int, long>);
const PC expected_m[] = { {1,1L}, {1,1L}, {2,2L}, {3,1L}, {INT_MAX,1L} };
assert(std::equal(m.begin(), m.end(), std::begin(expected_m), std::end(expected_m)));
}
{
std::multimap m({ PC{1,1L}, PC{2,2L}, PC{1,1L}, PC{INT_MAX,1L}, PC{3,1L} }, std::greater<int>());
ASSERT_SAME_TYPE(decltype(m), std::multimap<int, long, std::greater<int>>);
const PC expected_m[] = { {INT_MAX,1L}, {3,1L}, {2,2L}, {1,1L}, {1,1L} };
assert(std::equal(m.begin(), m.end(), std::begin(expected_m), std::end(expected_m)));
}
{
std::multimap m({ PC{1,1L}, PC{2,2L}, PC{1,1L}, PC{INT_MAX,1L}, PC{3,1L} }, std::greater<int>(), test_allocator<PC>(0, 43));
ASSERT_SAME_TYPE(decltype(m), std::multimap<int, long, std::greater<int>, test_allocator<PC>>);
const PC expected_m[] = { {INT_MAX,1L}, {3,1L}, {2,2L}, {1,1L}, {1,1L} };
assert(std::equal(m.begin(), m.end(), std::begin(expected_m), std::end(expected_m)));
assert(m.get_allocator().get_id() == 43);
}
{
std::multimap m({ PC{1,1L}, PC{2,2L}, PC{1,1L}, PC{INT_MAX,1L}, PC{3,1L} }, test_allocator<PC>(0, 45));
ASSERT_SAME_TYPE(decltype(m), std::multimap<int, long, std::less<int>, test_allocator<PC>>);
const PC expected_m[] = { {1,1L}, {1,1L}, {2,2L}, {3,1L}, {INT_MAX,1L} };
assert(std::equal(m.begin(), m.end(), std::begin(expected_m), std::end(expected_m)));
assert(m.get_allocator().get_id() == 45);
}
return 0;
}