26 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// <istream>10 11// template <class charT, class traits = char_traits<charT> >12// class basic_istream;13 14// The char type of the stream and the char_type of the traits have to match15 16// UNSUPPORTED: no-wide-characters17 18#include <istream>19#include <string>20 21struct test_istream22 : public std::basic_istream<char, std::char_traits<wchar_t> > {};23 24// expected-error-re@*:* {{static assertion failed{{.*}}traits_type::char_type must be the same type as CharT}}25// expected-error@*:* {{only virtual member functions can be marked 'override'}}26