streaming.pass.cpp (2026B)
1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // UNSUPPORTED: c++98, c++03, c++11, c++14, c++17 10 // XFAIL: * 11 12 // <chrono> 13 // class year; 14 15 // template<class charT, class traits> 16 // basic_ostream<charT, traits>& 17 // operator<<(basic_ostream<charT, traits>& os, const year& y); 18 // 19 // Effects: Inserts format(fmt, y) where fmt is "%Y" widened to charT. 20 // If !y.ok(), appends with " is not a valid year". 21 // 22 // template<class charT, class traits> 23 // basic_ostream<charT, traits>& 24 // to_stream(basic_ostream<charT, traits>& os, const charT* fmt, const year& y); 25 // 26 // Effects: Streams y into os using the format specified by the NTCTS fmt. 27 // fmt encoding follows the rules specified in 25.11. 28 // 29 // template<class charT, class traits, class Alloc = allocator<charT>> 30 // basic_istream<charT, traits>& 31 // from_stream(basic_istream<charT, traits>& is, const charT* fmt, 32 // year& y, basic_string<charT, traits, Alloc>* abbrev = nullptr, 33 // minutes* offset = nullptr); 34 // 35 // Effects: Attempts to parse the input stream is into the year y using the format flags 36 // given in the NTCTS fmt as specified in 25.12. If the parse fails to decode a valid year, 37 // is.setstate(ios_base::failbit) shall be called and y shall not be modified. If %Z is used 38 // and successfully parsed, that value will be assigned to *abbrev if abbrev is non-null. 39 // If %z (or a modified variant) is used and successfully parsed, that value will be 40 // assigned to *offset if offset is non-null. 41 42 43 #include <chrono> 44 #include <type_traits> 45 #include <cassert> 46 #include <iostream> 47 48 #include "test_macros.h" 49 50 int main() 51 { 52 using year = std::chrono::year; 53 54 std::cout << year{2018}; 55 }