You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
72 lines
2.8 KiB
C++
72 lines
2.8 KiB
C++
//===----------------------------------------------------------------------===//
|
|
//
|
|
// 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
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// <set>
|
|
// UNSUPPORTED: c++98, c++03, c++11, c++14
|
|
// UNSUPPORTED: libcpp-no-deduction-guides
|
|
// XFAIL: clang-6, apple-clang-9.0, apple-clang-9.1, apple-clang-10.0
|
|
// clang-6 gives different error messages.
|
|
|
|
// template<class InputIterator,
|
|
// class Compare = less<iter-value-type<InputIterator>>,
|
|
// class Allocator = allocator<iter-value-type<InputIterator>>>
|
|
// multiset(InputIterator, InputIterator,
|
|
// Compare = Compare(), Allocator = Allocator())
|
|
// -> multiset<iter-value-type<InputIterator>, Compare, Allocator>;
|
|
// template<class Key, class Compare = less<Key>,
|
|
// class Allocator = allocator<Key>>
|
|
// multiset(initializer_list<Key>, Compare = Compare(), Allocator = Allocator())
|
|
// -> multiset<Key, Compare, Allocator>;
|
|
// template<class InputIterator, class Allocator>
|
|
// multiset(InputIterator, InputIterator, Allocator)
|
|
// -> multiset<iter-value-type<InputIterator>,
|
|
// less<iter-value-type<InputIterator>>, Allocator>;
|
|
// template<class Key, class Allocator>
|
|
// multiset(initializer_list<Key>, Allocator)
|
|
// -> multiset<Key, less<Key>, Allocator>;
|
|
|
|
#include <functional>
|
|
#include <set>
|
|
#include <type_traits>
|
|
|
|
struct NotAnAllocator {
|
|
friend bool operator<(NotAnAllocator, NotAnAllocator) { return false; }
|
|
};
|
|
|
|
int main(int, char **) {
|
|
{
|
|
// cannot deduce Key from nothing
|
|
std::multiset s;
|
|
// expected-error@-1{{no viable constructor or deduction guide for deduction of template arguments of 'multiset'}}
|
|
}
|
|
{
|
|
// cannot deduce Key from just (Compare)
|
|
std::multiset s(std::less<int>{});
|
|
// expected-error@-1{{no viable constructor or deduction guide for deduction of template arguments of 'multiset'}}
|
|
}
|
|
{
|
|
// cannot deduce Key from just (Compare, Allocator)
|
|
std::multiset s(std::less<int>{}, std::allocator<int>{});
|
|
// expected-error@-1{{no viable constructor or deduction guide for deduction of template arguments of 'multiset'}}
|
|
}
|
|
{
|
|
// cannot deduce Key from multiset(Allocator)
|
|
std::multiset s(std::allocator<int>{});
|
|
// expected-error@-1{{no viable constructor or deduction guide for deduction of template arguments of 'multiset'}}
|
|
}
|
|
{
|
|
// since we have parens, not braces, this deliberately does not find the
|
|
// initializer_list constructor
|
|
NotAnAllocator a;
|
|
std::multiset s(a);
|
|
// expected-error@-1{{no viable constructor or deduction guide for deduction of template arguments of 'multiset'}}
|
|
}
|
|
|
|
return 0;
|
|
}
|