21 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// ADDITIONAL_COMPILE_FLAGS: -Wno-deprecated10 11#include <ext/hash_map>12 13int main(int, char**) {14 __gnu_cxx::hash_map<int, int> m;15 m[1] = 1;16 const __gnu_cxx::hash_map<int, int>& cm = m;17 cm.find(1)->second = 2; // expected-error {{cannot assign to return value because function 'operator->' returns a const value}}18 19 return 0;20}21