libcxx/test/std/time/time.cal/time.cal.day/time.cal.day.nonmembers/ostream.pass.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-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 // UNSUPPORTED: c++03, c++11, c++14, c++17
  10 // UNSUPPORTED: no-localization
  11 // UNSUPPORTED: GCC-ALWAYS_INLINE-FIXME
  12
  13 // TODO FMT This test should not require std::to_chars(floating-point)
  14 // XFAIL: availability-fp_to_chars-missing
  15
  16 // REQUIRES: locale.fr_FR.UTF-8
  17 // REQUIRES: locale.ja_JP.UTF-8
  18
  19 // <chrono>
  20 // class day;
  21
  22 // template<class charT, class traits>
  23 //   basic_ostream<charT, traits>&
  24 //     operator<<(basic_ostream<charT, traits>& os, const day& d);
  25
  26 #include <chrono>
  27 #include <cassert>
  28 #include <sstream>
  29
  30 #include "make_string.h"
  31 #include "platform_support.h" // locale name macros
  32 #include "test_macros.h"
  33
  34 #define SV(S) MAKE_STRING_VIEW(CharT, S)
  35
  36 template <class CharT>
  37 static std::basic_string<CharT> stream_c_locale(std::chrono::day day) {
  38   std::basic_stringstream<CharT> sstr;
  39   sstr << day;
  40   return sstr.str();
  41 }
  42
  43 template <class CharT>
  44 static std::basic_string<CharT> stream_fr_FR_locale(std::chrono::day day) {
  45   std::basic_stringstream<CharT> sstr;
  46   const std::locale locale(LOCALE_fr_FR_UTF_8);
  47   sstr.imbue(locale);
  48   sstr << day;
  49   return sstr.str();
  50 }
  51
  52 template <class CharT>
  53 static std::basic_string<CharT> stream_ja_JP_locale(std::chrono::day day) {
  54   std::basic_stringstream<CharT> sstr;
  55   const std::locale locale(LOCALE_ja_JP_UTF_8);
  56   sstr.imbue(locale);
  57   sstr << day;
  58   return sstr.str();
  59 }
  60
  61 template <class CharT>
  62 static void test() {
  63   using namespace std::literals::chrono_literals;
  64
  65   assert(stream_c_locale<CharT>(0d) == SV("00 is not a valid day"));
  66   assert(stream_c_locale<CharT>(1d) == SV("01"));
  67   assert(stream_c_locale<CharT>(31d) == SV("31"));
  68   assert(stream_c_locale<CharT>(255d) == SV("255 is not a valid day"));
  69
  70   assert(stream_fr_FR_locale<CharT>(0d) == SV("00 is not a valid day"));
  71   assert(stream_fr_FR_locale<CharT>(1d) == SV("01"));
  72   assert(stream_fr_FR_locale<CharT>(31d) == SV("31"));
  73   assert(stream_fr_FR_locale<CharT>(255d) == SV("255 is not a valid day"));
  74
  75   assert(stream_ja_JP_locale<CharT>(0d) == SV("00 is not a valid day"));
  76   assert(stream_ja_JP_locale<CharT>(1d) == SV("01"));
  77   assert(stream_ja_JP_locale<CharT>(31d) == SV("31"));
  78   assert(stream_ja_JP_locale<CharT>(255d) == SV("255 is not a valid day"));
  79 }
  80
  81 int main(int, char**) {
  82   using namespace std::literals::chrono_literals;
  83
  84   test<char>();
  85 #ifndef TEST_HAS_NO_WIDE_CHARACTERS
  86   test<wchar_t>();
  87 #endif
  88
  89   return 0;
  90 }