62 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// <iomanip>10 11// T1 resetiosflags(ios_base::fmtflags mask);12 13#include <iomanip>14#include <istream>15#include <ostream>16#include <cassert>17 18#include "test_macros.h"19 20template <class CharT>21struct testbuf22 : public std::basic_streambuf<CharT>23{24 testbuf() {}25};26 27int main(int, char**)28{29 {30 testbuf<char> sb;31 std::istream is(&sb);32 assert(is.flags() & std::ios_base::skipws);33 is >> std::resetiosflags(std::ios_base::skipws);34 assert(!(is.flags() & std::ios_base::skipws));35 }36 {37 testbuf<char> sb;38 std::ostream os(&sb);39 assert(os.flags() & std::ios_base::skipws);40 os << std::resetiosflags(std::ios_base::skipws);41 assert(!(os.flags() & std::ios_base::skipws));42 }43#ifndef TEST_HAS_NO_WIDE_CHARACTERS44 {45 testbuf<wchar_t> sb;46 std::wistream is(&sb);47 assert(is.flags() & std::ios_base::skipws);48 is >> std::resetiosflags(std::ios_base::skipws);49 assert(!(is.flags() & std::ios_base::skipws));50 }51 {52 testbuf<wchar_t> sb;53 std::wostream os(&sb);54 assert(os.flags() & std::ios_base::skipws);55 os << std::resetiosflags(std::ios_base::skipws);56 assert(!(os.flags() & std::ios_base::skipws));57 }58#endif59 60 return 0;61}62