| // { dg-require-namedlocale "" } |
| |
| // Copyright (C) 2004, 2005 Free Software Foundation, Inc. |
| // |
| // This file is part of the GNU ISO C++ Library. This library is free |
| // software; you can redistribute it and/or modify it under the |
| // terms of the GNU General Public License as published by the |
| // Free Software Foundation; either version 2, or (at your option) |
| // any later version. |
| |
| // This library is distributed in the hope that it will be useful, |
| // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| // GNU General Public License for more details. |
| |
| // You should have received a copy of the GNU General Public License along |
| // with this library; see the file COPYING. If not, write to the Free |
| // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, |
| // USA. |
| |
| #include <sstream> |
| #include <locale> |
| #include <testsuite_hooks.h> |
| |
| int main() |
| { |
| using namespace std; |
| |
| bool test __attribute__((unused)) = true; |
| locale l1 = locale("de_DE"); |
| locale l2 = locale("es_ES"); |
| |
| const time_put<char> &tp = use_facet<time_put<char> >(l1); |
| ostringstream oss; |
| oss.imbue(l2); |
| |
| tm t = tm(); |
| tp.put(oss.rdbuf(), oss, ' ', &t, 'A'); |
| string res = oss.str(); |
| |
| VERIFY( res == "domingo" ); |
| |
| return 0; |
| } |
| |
| // Two interpretations of the standard. |
| |
| // 1 : time_get, time_put each have their own data internally |
| // use internal data for time and date specifics |
| // use getloc for ctype info |
| |
| // 2 : time_get, time_put use the ios_base& argument and getloc to |
| // retrieve the necessary data. |
| // use getloc for ctype, time and date specifics |
| |
| // It is my opinion that the language in the standard is sufficiently |
| // vague to permit both interpretations. In particular, the interface |
| // for time_get and time_put is based on strftime, which as |
| // POSIX notes is dependent on LC_TIME. The C++ standard, however, |
| // does not specify the equivalent mappings of LC_TIME to time_get and |
| // time_put. |
| |
| /* |
| The problems with the first approach, as above, are numerous. |
| |
| 1) The locale usage and design for formatters and parsers becomes |
| fragmented. On one side, num_put and money_put, and on the other, |
| time_put. This inconsistency is not useful. |
| |
| 2) The data structures for time and date formatting are the largest in |
| the locale library. Making time_put and time_get keep separate |
| copies is inefficient. (Note that time_put and time_get are in the |
| same locale::category). |
| */ |
| |
| |
| /* |
| 22.2.5 - The time category [lib.category.time] |
| |
| -1- Templates time_get<charT,InputIterator> and |
| time_put<charT,OutputIterator> provide date and time formatting and |
| parsing. All specifications of member functions for time_put and |
| time_get in the subclauses of lib.category.time only apply to the |
| instantiations required in Tables 51 and 52 |
| (lib.locale.category). Their members use their ios_base&, |
| ios_base::iostate&, and fill arguments as described in |
| (lib.locale.categories), and the ctype<> facet, to determine |
| formatting details. |
| */ |
| |
| /* |
| 22.2 - Standard locale categories [lib.locale.categories] |
| |
| -1- Each of the standard categories includes a family of facets. Some |
| of these implement formatting or parsing of a datum, for use by |
| standard or users' iostream operators << and >>, as members put() and |
| get(), respectively. Each such member function takes an ios_base& |
| argument whose members flags(), precision(), and width(), specify the |
| format of the corresponding datum. (lib.ios.base). Those functions |
| which need to use other facets call its member getloc() to retrieve |
| the locale imbued there. Formatting facets use the character argument |
| fill to fill out the specified width where necessary. |
| */ |
| |
| /* |
| With GCC/libstdc++, the output of the program with the arguments |
| of de_DE es_ES is: |
| domingo |
| lunes |
| martes |
| miércoles |
| jueves |
| viernes |
| sábado |
| |
| With Intel C++, it is: (this is clearly wrong) |
| Sunday |
| Monday |
| Tuesday |
| Wednesday |
| Thursday |
| Friday |
| Saturday |
| |
| And with RogueWave C++ |
| Sonntag |
| Montag |
| Dienstag |
| Mittwoch |
| Donnerstag |
| Freitag |
| Samstag |
| */ |