1 // std::time_get, std::time_put implementation, GNU version -*- C++ -*-
2 
3 // Copyright (C) 2001-2022 Free Software Foundation, Inc.
4 //
5 // This file is part of the GNU ISO C++ Library.  This library is free
6 // software; you can redistribute it and/or modify it under the
7 // terms of the GNU General Public License as published by the
8 // Free Software Foundation; either version 3, or (at your option)
9 // any later version.
10 
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14 // GNU General Public License for more details.
15 
16 // Under Section 7 of GPL version 3, you are granted additional
17 // permissions described in the GCC Runtime Library Exception, version
18 // 3.1, as published by the Free Software Foundation.
19 
20 // You should have received a copy of the GNU General Public License and
21 // a copy of the GCC Runtime Library Exception along with this program;
22 // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
23 // <http://www.gnu.org/licenses/>.
24 
25 //
26 // ISO C++ 14882: 22.2.5.1.2 - time_get virtual functions
27 // ISO C++ 14882: 22.2.5.3.2 - time_put virtual functions
28 //
29 
30 // Written by Benjamin Kosnik <bkoz@redhat.com>
31 
32 #include <locale>
33 #include <bits/c++locale_internal.h>
34 
35 namespace std _GLIBCXX_VISIBILITY(default)
36 {
37 _GLIBCXX_BEGIN_NAMESPACE_VERSION
38 
39   template<>
40     void
41     __timepunct<char>::
_M_put(char * __s,size_t __maxlen,const char * __format,const tm * __tm) const42     _M_put(char* __s, size_t __maxlen, const char* __format,
43              const tm* __tm) const throw()
44     {
45 #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)
46       const size_t __len = __strftime_l(__s, __maxlen, __format, __tm,
47                                                   _M_c_locale_timepunct);
48 #else
49       char* __old = setlocale(LC_ALL, 0);
50       const size_t __llen = strlen(__old) + 1;
51       char* __sav = new char[__llen];
52       memcpy(__sav, __old, __llen);
53       setlocale(LC_ALL, _M_name_timepunct);
54       const size_t __len = strftime(__s, __maxlen, __format, __tm);
55       setlocale(LC_ALL, __sav);
56       delete [] __sav;
57 #endif
58       // Make sure __s is null terminated.
59       if (__len == 0)
60           __s[0] = '\0';
61     }
62 
63   template<>
64     void
_M_initialize_timepunct(__c_locale __cloc)65     __timepunct<char>::_M_initialize_timepunct(__c_locale __cloc)
66     {
67       if (!_M_data)
68           _M_data = new __timepunct_cache<char>;
69 
70       if (!__cloc)
71           {
72             // "C" locale
73             _M_c_locale_timepunct = _S_get_c_locale();
74 
75             _M_data->_M_date_format = "%m/%d/%y";
76             _M_data->_M_date_era_format = "%m/%d/%y";
77             _M_data->_M_time_format = "%H:%M:%S";
78             _M_data->_M_time_era_format = "%H:%M:%S";
79             _M_data->_M_date_time_format = "";
80             _M_data->_M_date_time_era_format = "";
81             _M_data->_M_am = "AM";
82             _M_data->_M_pm = "PM";
83             _M_data->_M_am_pm_format = "%I:%M:%S %p";
84 
85             // Day names, starting with "C"'s Sunday.
86             _M_data->_M_day1 = "Sunday";
87             _M_data->_M_day2 = "Monday";
88             _M_data->_M_day3 = "Tuesday";
89             _M_data->_M_day4 = "Wednesday";
90             _M_data->_M_day5 = "Thursday";
91             _M_data->_M_day6 = "Friday";
92             _M_data->_M_day7 = "Saturday";
93 
94             // Abbreviated day names, starting with "C"'s Sun.
95             _M_data->_M_aday1 = "Sun";
96             _M_data->_M_aday2 = "Mon";
97             _M_data->_M_aday3 = "Tue";
98             _M_data->_M_aday4 = "Wed";
99             _M_data->_M_aday5 = "Thu";
100             _M_data->_M_aday6 = "Fri";
101             _M_data->_M_aday7 = "Sat";
102 
103             // Month names, starting with "C"'s January.
104             _M_data->_M_month01 = "January";
105             _M_data->_M_month02 = "February";
106             _M_data->_M_month03 = "March";
107             _M_data->_M_month04 = "April";
108             _M_data->_M_month05 = "May";
109             _M_data->_M_month06 = "June";
110             _M_data->_M_month07 = "July";
111             _M_data->_M_month08 = "August";
112             _M_data->_M_month09 = "September";
113             _M_data->_M_month10 = "October";
114             _M_data->_M_month11 = "November";
115             _M_data->_M_month12 = "December";
116 
117             // Abbreviated month names, starting with "C"'s Jan.
118             _M_data->_M_amonth01 = "Jan";
119             _M_data->_M_amonth02 = "Feb";
120             _M_data->_M_amonth03 = "Mar";
121             _M_data->_M_amonth04 = "Apr";
122             _M_data->_M_amonth05 = "May";
123             _M_data->_M_amonth06 = "Jun";
124             _M_data->_M_amonth07 = "Jul";
125             _M_data->_M_amonth08 = "Aug";
126             _M_data->_M_amonth09 = "Sep";
127             _M_data->_M_amonth10 = "Oct";
128             _M_data->_M_amonth11 = "Nov";
129             _M_data->_M_amonth12 = "Dec";
130           }
131       else
132           {
133             _M_c_locale_timepunct = _S_clone_c_locale(__cloc);
134 
135             _M_data->_M_date_format = __nl_langinfo_l(D_FMT, __cloc);
136             _M_data->_M_date_era_format = __nl_langinfo_l(ERA_D_FMT, __cloc);
137             _M_data->_M_time_format = __nl_langinfo_l(T_FMT, __cloc);
138             _M_data->_M_time_era_format = __nl_langinfo_l(ERA_T_FMT, __cloc);
139             _M_data->_M_date_time_format = __nl_langinfo_l(D_T_FMT, __cloc);
140             _M_data->_M_date_time_era_format = __nl_langinfo_l(ERA_D_T_FMT,
141                                                                            __cloc);
142             _M_data->_M_am = __nl_langinfo_l(AM_STR, __cloc);
143             _M_data->_M_pm = __nl_langinfo_l(PM_STR, __cloc);
144             _M_data->_M_am_pm_format = __nl_langinfo_l(T_FMT_AMPM, __cloc);
145 
146             // Day names, starting with "C"'s Sunday.
147             _M_data->_M_day1 = __nl_langinfo_l(DAY_1, __cloc);
148             _M_data->_M_day2 = __nl_langinfo_l(DAY_2, __cloc);
149             _M_data->_M_day3 = __nl_langinfo_l(DAY_3, __cloc);
150             _M_data->_M_day4 = __nl_langinfo_l(DAY_4, __cloc);
151             _M_data->_M_day5 = __nl_langinfo_l(DAY_5, __cloc);
152             _M_data->_M_day6 = __nl_langinfo_l(DAY_6, __cloc);
153             _M_data->_M_day7 = __nl_langinfo_l(DAY_7, __cloc);
154 
155             // Abbreviated day names, starting with "C"'s Sun.
156             _M_data->_M_aday1 = __nl_langinfo_l(ABDAY_1, __cloc);
157             _M_data->_M_aday2 = __nl_langinfo_l(ABDAY_2, __cloc);
158             _M_data->_M_aday3 = __nl_langinfo_l(ABDAY_3, __cloc);
159             _M_data->_M_aday4 = __nl_langinfo_l(ABDAY_4, __cloc);
160             _M_data->_M_aday5 = __nl_langinfo_l(ABDAY_5, __cloc);
161             _M_data->_M_aday6 = __nl_langinfo_l(ABDAY_6, __cloc);
162             _M_data->_M_aday7 = __nl_langinfo_l(ABDAY_7, __cloc);
163 
164             // Month names, starting with "C"'s January.
165             _M_data->_M_month01 = __nl_langinfo_l(MON_1, __cloc);
166             _M_data->_M_month02 = __nl_langinfo_l(MON_2, __cloc);
167             _M_data->_M_month03 = __nl_langinfo_l(MON_3, __cloc);
168             _M_data->_M_month04 = __nl_langinfo_l(MON_4, __cloc);
169             _M_data->_M_month05 = __nl_langinfo_l(MON_5, __cloc);
170             _M_data->_M_month06 = __nl_langinfo_l(MON_6, __cloc);
171             _M_data->_M_month07 = __nl_langinfo_l(MON_7, __cloc);
172             _M_data->_M_month08 = __nl_langinfo_l(MON_8, __cloc);
173             _M_data->_M_month09 = __nl_langinfo_l(MON_9, __cloc);
174             _M_data->_M_month10 = __nl_langinfo_l(MON_10, __cloc);
175             _M_data->_M_month11 = __nl_langinfo_l(MON_11, __cloc);
176             _M_data->_M_month12 = __nl_langinfo_l(MON_12, __cloc);
177 
178             // Abbreviated month names, starting with "C"'s Jan.
179             _M_data->_M_amonth01 = __nl_langinfo_l(ABMON_1, __cloc);
180             _M_data->_M_amonth02 = __nl_langinfo_l(ABMON_2, __cloc);
181             _M_data->_M_amonth03 = __nl_langinfo_l(ABMON_3, __cloc);
182             _M_data->_M_amonth04 = __nl_langinfo_l(ABMON_4, __cloc);
183             _M_data->_M_amonth05 = __nl_langinfo_l(ABMON_5, __cloc);
184             _M_data->_M_amonth06 = __nl_langinfo_l(ABMON_6, __cloc);
185             _M_data->_M_amonth07 = __nl_langinfo_l(ABMON_7, __cloc);
186             _M_data->_M_amonth08 = __nl_langinfo_l(ABMON_8, __cloc);
187             _M_data->_M_amonth09 = __nl_langinfo_l(ABMON_9, __cloc);
188             _M_data->_M_amonth10 = __nl_langinfo_l(ABMON_10, __cloc);
189             _M_data->_M_amonth11 = __nl_langinfo_l(ABMON_11, __cloc);
190             _M_data->_M_amonth12 = __nl_langinfo_l(ABMON_12, __cloc);
191           }
192     }
193 
194 #ifdef _GLIBCXX_USE_WCHAR_T
195   template<>
196     void
197     __timepunct<wchar_t>::
_M_put(wchar_t * __s,size_t __maxlen,const wchar_t * __format,const tm * __tm) const198     _M_put(wchar_t* __s, size_t __maxlen, const wchar_t* __format,
199              const tm* __tm) const throw()
200     {
201 #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)
202       const size_t __len = __wcsftime_l(__s, __maxlen, __format, __tm,
203                                                   _M_c_locale_timepunct);
204 #else
205       char* __old = setlocale(LC_ALL, 0);
206       const size_t __llen = strlen(__old) + 1;
207       char* __sav = new char[__llen];
208       memcpy(__sav, __old, __llen);
209       setlocale(LC_ALL, _M_name_timepunct);
210       const size_t __len = wcsftime(__s, __maxlen, __format, __tm);
211       setlocale(LC_ALL, __sav);
212       delete [] __sav;
213 #endif
214       // Make sure __s is null terminated.
215       if (__len == 0)
216           __s[0] = L'\0';
217     }
218 
219   template<>
220     void
_M_initialize_timepunct(__c_locale __cloc)221     __timepunct<wchar_t>::_M_initialize_timepunct(__c_locale __cloc)
222     {
223       if (!_M_data)
224           _M_data = new __timepunct_cache<wchar_t>;
225 
226       if (!__cloc)
227           {
228             // "C" locale
229             _M_c_locale_timepunct = _S_get_c_locale();
230 
231             _M_data->_M_date_format = L"%m/%d/%y";
232             _M_data->_M_date_era_format = L"%m/%d/%y";
233             _M_data->_M_time_format = L"%H:%M:%S";
234             _M_data->_M_time_era_format = L"%H:%M:%S";
235             _M_data->_M_date_time_format = L"";
236             _M_data->_M_date_time_era_format = L"";
237             _M_data->_M_am = L"AM";
238             _M_data->_M_pm = L"PM";
239             _M_data->_M_am_pm_format = L"%I:%M:%S %p";
240 
241             // Day names, starting with "C"'s Sunday.
242             _M_data->_M_day1 = L"Sunday";
243             _M_data->_M_day2 = L"Monday";
244             _M_data->_M_day3 = L"Tuesday";
245             _M_data->_M_day4 = L"Wednesday";
246             _M_data->_M_day5 = L"Thursday";
247             _M_data->_M_day6 = L"Friday";
248             _M_data->_M_day7 = L"Saturday";
249 
250             // Abbreviated day names, starting with "C"'s Sun.
251             _M_data->_M_aday1 = L"Sun";
252             _M_data->_M_aday2 = L"Mon";
253             _M_data->_M_aday3 = L"Tue";
254             _M_data->_M_aday4 = L"Wed";
255             _M_data->_M_aday5 = L"Thu";
256             _M_data->_M_aday6 = L"Fri";
257             _M_data->_M_aday7 = L"Sat";
258 
259             // Month names, starting with "C"'s January.
260             _M_data->_M_month01 = L"January";
261             _M_data->_M_month02 = L"February";
262             _M_data->_M_month03 = L"March";
263             _M_data->_M_month04 = L"April";
264             _M_data->_M_month05 = L"May";
265             _M_data->_M_month06 = L"June";
266             _M_data->_M_month07 = L"July";
267             _M_data->_M_month08 = L"August";
268             _M_data->_M_month09 = L"September";
269             _M_data->_M_month10 = L"October";
270             _M_data->_M_month11 = L"November";
271             _M_data->_M_month12 = L"December";
272 
273             // Abbreviated month names, starting with "C"'s Jan.
274             _M_data->_M_amonth01 = L"Jan";
275             _M_data->_M_amonth02 = L"Feb";
276             _M_data->_M_amonth03 = L"Mar";
277             _M_data->_M_amonth04 = L"Apr";
278             _M_data->_M_amonth05 = L"May";
279             _M_data->_M_amonth06 = L"Jun";
280             _M_data->_M_amonth07 = L"Jul";
281             _M_data->_M_amonth08 = L"Aug";
282             _M_data->_M_amonth09 = L"Sep";
283             _M_data->_M_amonth10 = L"Oct";
284             _M_data->_M_amonth11 = L"Nov";
285             _M_data->_M_amonth12 = L"Dec";
286           }
287       else
288           {
289             _M_c_locale_timepunct = _S_clone_c_locale(__cloc);
290 
291             union { char *__s; wchar_t *__w; } __u;
292 
293             __u.__s = __nl_langinfo_l(_NL_WD_FMT, __cloc);
294             _M_data->_M_date_format = __u.__w;
295             __u.__s = __nl_langinfo_l(_NL_WERA_D_FMT, __cloc);
296             _M_data->_M_date_era_format = __u.__w;
297             __u.__s = __nl_langinfo_l(_NL_WT_FMT, __cloc);
298             _M_data->_M_time_format = __u.__w;
299             __u.__s = __nl_langinfo_l(_NL_WERA_T_FMT, __cloc);
300             _M_data->_M_time_era_format = __u.__w;
301             __u.__s = __nl_langinfo_l(_NL_WD_T_FMT, __cloc);
302             _M_data->_M_date_time_format = __u.__w;
303             __u.__s = __nl_langinfo_l(_NL_WERA_D_T_FMT, __cloc);
304             _M_data->_M_date_time_era_format = __u.__w;
305             __u.__s = __nl_langinfo_l(_NL_WAM_STR, __cloc);
306             _M_data->_M_am = __u.__w;
307             __u.__s = __nl_langinfo_l(_NL_WPM_STR, __cloc);
308             _M_data->_M_pm = __u.__w;
309             __u.__s = __nl_langinfo_l(_NL_WT_FMT_AMPM, __cloc);
310             _M_data->_M_am_pm_format = __u.__w;
311 
312             // Day names, starting with "C"'s Sunday.
313             __u.__s = __nl_langinfo_l(_NL_WDAY_1, __cloc);
314             _M_data->_M_day1 = __u.__w;
315             __u.__s = __nl_langinfo_l(_NL_WDAY_2, __cloc);
316             _M_data->_M_day2 = __u.__w;
317             __u.__s = __nl_langinfo_l(_NL_WDAY_3, __cloc);
318             _M_data->_M_day3 = __u.__w;
319             __u.__s = __nl_langinfo_l(_NL_WDAY_4, __cloc);
320             _M_data->_M_day4 = __u.__w;
321             __u.__s = __nl_langinfo_l(_NL_WDAY_5, __cloc);
322             _M_data->_M_day5 = __u.__w;
323             __u.__s = __nl_langinfo_l(_NL_WDAY_6, __cloc);
324             _M_data->_M_day6 = __u.__w;
325             __u.__s = __nl_langinfo_l(_NL_WDAY_7, __cloc);
326             _M_data->_M_day7 = __u.__w;
327 
328             // Abbreviated day names, starting with "C"'s Sun.
329             __u.__s = __nl_langinfo_l(_NL_WABDAY_1, __cloc);
330             _M_data->_M_aday1 = __u.__w;
331             __u.__s = __nl_langinfo_l(_NL_WABDAY_2, __cloc);
332             _M_data->_M_aday2 = __u.__w;
333             __u.__s = __nl_langinfo_l(_NL_WABDAY_3, __cloc);
334             _M_data->_M_aday3 = __u.__w;
335             __u.__s = __nl_langinfo_l(_NL_WABDAY_4, __cloc);
336             _M_data->_M_aday4 = __u.__w;
337             __u.__s = __nl_langinfo_l(_NL_WABDAY_5, __cloc);
338             _M_data->_M_aday5 = __u.__w;
339             __u.__s = __nl_langinfo_l(_NL_WABDAY_6, __cloc);
340             _M_data->_M_aday6 = __u.__w;
341             __u.__s = __nl_langinfo_l(_NL_WABDAY_7, __cloc);
342             _M_data->_M_aday7 = __u.__w;
343 
344             // Month names, starting with "C"'s January.
345             __u.__s = __nl_langinfo_l(_NL_WMON_1, __cloc);
346             _M_data->_M_month01 = __u.__w;
347             __u.__s = __nl_langinfo_l(_NL_WMON_2, __cloc);
348             _M_data->_M_month02 = __u.__w;
349             __u.__s = __nl_langinfo_l(_NL_WMON_3, __cloc);
350             _M_data->_M_month03 = __u.__w;
351             __u.__s = __nl_langinfo_l(_NL_WMON_4, __cloc);
352             _M_data->_M_month04 = __u.__w;
353             __u.__s = __nl_langinfo_l(_NL_WMON_5, __cloc);
354             _M_data->_M_month05 = __u.__w;
355             __u.__s = __nl_langinfo_l(_NL_WMON_6, __cloc);
356             _M_data->_M_month06 = __u.__w;
357             __u.__s = __nl_langinfo_l(_NL_WMON_7, __cloc);
358             _M_data->_M_month07 = __u.__w;
359             __u.__s = __nl_langinfo_l(_NL_WMON_8, __cloc);
360             _M_data->_M_month08 = __u.__w;
361             __u.__s = __nl_langinfo_l(_NL_WMON_9, __cloc);
362             _M_data->_M_month09 = __u.__w;
363             __u.__s = __nl_langinfo_l(_NL_WMON_10, __cloc);
364             _M_data->_M_month10 = __u.__w;
365             __u.__s = __nl_langinfo_l(_NL_WMON_11, __cloc);
366             _M_data->_M_month11 = __u.__w;
367             __u.__s = __nl_langinfo_l(_NL_WMON_12, __cloc);
368             _M_data->_M_month12 = __u.__w;
369 
370             // Abbreviated month names, starting with "C"'s Jan.
371             __u.__s = __nl_langinfo_l(_NL_WABMON_1, __cloc);
372             _M_data->_M_amonth01 = __u.__w;
373             __u.__s = __nl_langinfo_l(_NL_WABMON_2, __cloc);
374             _M_data->_M_amonth02 = __u.__w;
375             __u.__s = __nl_langinfo_l(_NL_WABMON_3, __cloc);
376             _M_data->_M_amonth03 = __u.__w;
377             __u.__s = __nl_langinfo_l(_NL_WABMON_4, __cloc);
378             _M_data->_M_amonth04 = __u.__w;
379             __u.__s = __nl_langinfo_l(_NL_WABMON_5, __cloc);
380             _M_data->_M_amonth05 = __u.__w;
381             __u.__s = __nl_langinfo_l(_NL_WABMON_6, __cloc);
382             _M_data->_M_amonth06 = __u.__w;
383             __u.__s = __nl_langinfo_l(_NL_WABMON_7, __cloc);
384             _M_data->_M_amonth07 = __u.__w;
385             __u.__s = __nl_langinfo_l(_NL_WABMON_8, __cloc);
386             _M_data->_M_amonth08 = __u.__w;
387             __u.__s = __nl_langinfo_l(_NL_WABMON_9, __cloc);
388             _M_data->_M_amonth09 = __u.__w;
389             __u.__s = __nl_langinfo_l(_NL_WABMON_10, __cloc);
390             _M_data->_M_amonth10 = __u.__w;
391             __u.__s = __nl_langinfo_l(_NL_WABMON_11, __cloc);
392             _M_data->_M_amonth11 = __u.__w;
393             __u.__s = __nl_langinfo_l(_NL_WABMON_12, __cloc);
394             _M_data->_M_amonth12 = __u.__w;
395           }
396     }
397 #endif
398 
399 _GLIBCXX_END_NAMESPACE_VERSION
400 } // namespace
401