61 lines · cpp
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-exception6//7//===----------------------------------------------------------------------===//8 9// <queue>10// UNSUPPORTED: c++03, c++11, c++1411 12#include <queue>13#include <deque>14#include <iterator>15#include <cassert>16#include <cstddef>17 18int main(int, char**) {19 // Test the explicit deduction guides20 {21 // queue(Compare, Container, const Alloc);22 // The '45' is not an allocator23 std::priority_queue pri(std::greater<int>(), std::deque<int>({1, 2, 3}), 45);24 // expected-error-re@-1 {{no viable constructor or deduction guide for deduction of template arguments of '{{(std::)?}}priority_queue'}}25 }26 27 {28 // queue(const queue&, const Alloc&);29 // The '45' is not an allocator30 std::priority_queue<int> source;31 std::priority_queue pri(source, 45);32 // expected-error-re@-1 {{no viable constructor or deduction guide for deduction of template arguments of '{{(std::)?}}priority_queue'}}33 }34 35 {36 // priority_queue(Iter, Iter, Comp)37 // int is not an iterator38 std::priority_queue pri(15, 17, std::greater< double>());39 // expected-error-re@-1 {{no viable constructor or deduction guide for deduction of template arguments of '{{(std::)?}}priority_queue'}}40 }41 42 {43 // priority_queue(Iter, Iter, Comp, Container)44 // float is not an iterator45 std::priority_queue pri(23.f, 2.f, std::greater<float>(), std::deque< float>());46 // expected-error-re@-1 {{no viable constructor or deduction guide for deduction of template arguments of '{{(std::)?}}priority_queue'}}47 }48 49 // Test the implicit deduction guides50 {51 // priority_queue (allocator &)52 std::priority_queue pri((std::allocator< int>()));53 // expected-error-re@-1 {{no viable constructor or deduction guide for deduction of template arguments of '{{(std::)?}}priority_queue'}}54 // Note: The extra parens are necessary, since otherwise clang decides it is a function declaration.55 // Also, we can't use {} instead of parens, because that constructs a56 // stack<allocator<int>, allocator<allocator<int>>>57 }58 59 return 0;60}61