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-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 // <iomanip> 10 11 // T2 setiosflags (ios_base::fmtflags mask); 12 13 #include <iomanip> 14 #include <istream> 15 #include <ostream> 16 #include <cassert> 17 18 template <class CharT> 19 struct testbuf 20 : public std::basic_streambuf<CharT> 21 { 22 testbuf() {} 23 }; 24 25 int main(int, char**) 26 { 27 { 28 testbuf<char> sb; 29 std::istream is(&sb); 30 assert(!(is.flags() & std::ios_base::oct)); 31 is >> std::setiosflags(std::ios_base::oct); 32 assert(is.flags() & std::ios_base::oct); 33 } 34 { 35 testbuf<char> sb; 36 std::ostream os(&sb); 37 assert(!(os.flags() & std::ios_base::oct)); 38 os << std::setiosflags(std::ios_base::oct); 39 assert(os.flags() & std::ios_base::oct); 40 } 41 { 42 testbuf<wchar_t> sb; 43 std::wistream is(&sb); 44 assert(!(is.flags() & std::ios_base::oct)); 45 is >> std::setiosflags(std::ios_base::oct); 46 assert(is.flags() & std::ios_base::oct); 47 } 48 { 49 testbuf<wchar_t> sb; 50 std::wostream os(&sb); 51 assert(!(os.flags() & std::ios_base::oct)); 52 os << std::setiosflags(std::ios_base::oct); 53 assert(os.flags() & std::ios_base::oct); 54 } 55 56 return 0; 57 } 58