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 // <stack> 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 18 #include <stack> 19 #include <list> 20 #include <iterator> 21 #include <cassert> 22 #include <cstddef> 23 24 25 int main(int, char**) 26 { 27 // Test the explicit deduction guides 28 { 29 // stack(const Container&, const Alloc&); 30 // The '45' is not an allocator 31 std::stack stk(std::list<int>({1,2,3}), 45); // expected-error {{no viable constructor or deduction guide for deduction of template arguments of 'stack'}} 32 } 33 34 { 35 // stack(const stack&, const Alloc&); 36 // The '45' is not an allocator 37 std::stack<int> source; 38 std::stack stk(source, 45); // expected-error {{no viable constructor or deduction guide for deduction of template arguments of 'stack'}} 39 } 40 41 // Test the implicit deduction guides 42 { 43 // stack (allocator &) 44 std::stack stk((std::allocator<int>())); // expected-error {{no viable constructor or deduction guide for deduction of template arguments of 'stack'}} 45 // Note: The extra parens are necessary, since otherwise clang decides it is a function declaration. 46 // Also, we can't use {} instead of parens, because that constructs a 47 // stack<allocator<int>, allocator<allocator<int>>> 48 } 49 50 51 return 0; 52 } 53