1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // <stack> 11 // UNSUPPORTED: c++98, c++03, c++11, c++14 12 // UNSUPPORTED: libcpp-no-deduction-guides 13 14 15 // template <class InputIterator, class Allocator = allocator<typename iterator_traits<InputIterator>::value_type>> 16 // vector(InputIterator, InputIterator, Allocator = Allocator()) 17 // -> vector<typename iterator_traits<InputIterator>::value_type, Allocator>; 18 // 19 20 21 #include <stack> 22 #include <list> 23 #include <iterator> 24 #include <cassert> 25 #include <cstddef> 26 27 28 int main() 29 { 30 // Test the explicit deduction guides 31 { 32 // stack(const Container&, const Alloc&); 33 // The '45' is not an allocator 34 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'}} 35 } 36 37 { 38 // stack(const stack&, const Alloc&); 39 // The '45' is not an allocator 40 std::stack<int> source; 41 std::stack stk(source, 45); // expected-error {{no viable constructor or deduction guide for deduction of template arguments of 'stack'}} 42 } 43 44 // Test the implicit deduction guides 45 { 46 // stack (allocator &) 47 std::stack stk((std::allocator<int>())); // expected-error {{no viable constructor or deduction guide for deduction of template arguments of 'stack'}} 48 // Note: The extra parens are necessary, since otherwise clang decides it is a function declaration. 49 // Also, we can't use {} instead of parens, because that constructs a 50 // stack<allocator<int>, allocator<allocator<int>>> 51 } 52 53 } 54
