1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 // <vector>
10 // UNSUPPORTED: c++03, c++11, c++14
11
12 // template <class InputIterator, class Allocator = allocator<typename iterator_traits<InputIterator>::value_type>>
13 // vector(InputIterator, InputIterator, Allocator = Allocator())
14 // -> vector<typename iterator_traits<InputIterator>::value_type, Allocator>;
15 //
16
17 #include <deque>
18 #include <iterator>
19 #include <cassert>
20 #include <cstddef>
21
22
main(int,char **)23 int main(int, char**)
24 {
25 // Test the explicit deduction guides
26
27 // Test the implicit deduction guides
28 {
29 // vector (allocator &)
30 std::vector vec((std::allocator<int>())); // expected-error {{no viable constructor or deduction guide for deduction of template arguments of 'vector'}}
31 // Note: The extra parens are necessary, since otherwise clang decides it is a function declaration.
32 // Also, we can't use {} instead of parens, because that constructs a
33 // deque<allocator<int>, allocator<allocator<int>>>
34 }
35
36
37 return 0;
38 }
39