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 // 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 20 template <class CharT> 21 struct testbuf 22 : public std::basic_streambuf<CharT> 23 { testbuftestbuf24 testbuf() {} 25 }; 26 main(int,char **)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_CHARACTERS 44 { 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 #endif 59 60 return 0; 61 } 62