libstdc++-v3/testsuite/22_locale/time_get/get_time/char/2.cc

   1 // { dg-require-namedlocale "en_HK.ISO8859-1" }
   2
   3 // 2001-09-21 Benjamin Kosnik  <bkoz@redhat.com>
   4
   5 // Copyright (C) 2001-2024 Free Software Foundation, Inc.
   6 //
   7 // This file is part of the GNU ISO C++ Library.  This library is free
   8 // software; you can redistribute it and/or modify it under the
   9 // terms of the GNU General Public License as published by the
  10 // Free Software Foundation; either version 3, or (at your option)
  11 // any later version.
  12
  13 // This library is distributed in the hope that it will be useful,
  14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 // GNU General Public License for more details.
  17
  18 // You should have received a copy of the GNU General Public License along
  19 // with this library; see the file COPYING3.  If not see
  20 // <http://www.gnu.org/licenses/>.
  21
  22 // 22.2.5.1.1 time_get members
  23
  24 #include <locale>
  25 #include <sstream>
  26 #include <testsuite_hooks.h>
  27
  28 static bool ampm_time_format();
  29
  30 void test02()
  31 {
  32   using namespace std;
  33
  34   typedef istreambuf_iterator<char> iterator_type;
  35
  36   // basic construction and sanity check
  37   locale loc_c = locale::classic();
  38   locale loc_hk = locale(ISO_8859(1,en_HK));
  39   VERIFY( loc_hk != loc_c );
  40
  41   const int pm = ampm_time_format() ? 12 : 0;
  42   const string empty;
  43   const tm time_bday = __gnu_test::test_tm(1, 2, 0+pm, 4, 3, 71, 0, 93, 0);
  44
  45   // create an ostream-derived object, cache the time_get facet
  46   iterator_type end;
  47   istringstream iss;
  48   const time_get<char>& tim_get = use_facet<time_get<char> >(iss.getloc());
  49   const ios_base::iostate good = ios_base::goodbit;
  50   ios_base::iostate errorstate = good;
  51
  52   // inspection of named locales, en_HK
  53   iss.imbue(loc_hk);
  54   if (pm)
  55     iss.str("12:02:01 PM PST");
  56   else
  57     iss.str("12:02:01 PST"); // %I means 12-hour clock, so parsed as 12am
  58   // Hong Kong in California! Well, they have Paris in Vegas... this
  59   // is all a little disney-esque anyway. Besides, you can get decent
  60   // Dim Sum in San Francisco.
  61   iterator_type is_it20(iss);
  62   tm time20;
  63   errorstate = good;
  64   tim_get.get_time(is_it20, end, iss, errorstate, &time20);
  65   VERIFY( time20.tm_sec == time_bday.tm_sec );
  66   VERIFY( time20.tm_min == time_bday.tm_min );
  67   VERIFY( time20.tm_hour == time_bday.tm_hour );
  68   VERIFY( errorstate == ios_base::eofbit );
  69 }
  70
  71 #include <locale.h>
  72 #if __has_include(<langinfo.h>)
  73 # include <langinfo.h>
  74 #endif
  75 #include <string.h>
  76
  77 static bool ampm_time_format()
  78 {
  79 #ifdef T_FMT
  80   std::string orig = setlocale(LC_TIME, NULL);
  81   if (setlocale(LC_TIME, ISO_8859(1,en_HK)) != NULL)
  82   {
  83     // See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103687
  84     std::string t_fmt = nl_langinfo(T_FMT);
  85     setlocale(LC_TIME, orig.c_str());
  86     return t_fmt.find("%p") != std::string::npos;
  87   }
  88 #endif
  89   return false;
  90 }
  91
  92 int main()
  93 {
  94   test02();
  95   return 0;
  96 }