27 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// <ios>10 11// template <class charT, class traits> class basic_ios12 13// char_type widen(char c) const;14 15#include <ios>16#include <cassert>17 18#include "test_macros.h"19 20int main(int, char**)21{22 const std::ios ios(0);23 assert(ios.widen('c') == 'c');24 25 return 0;26}27