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locale_facets_nonio.h
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locale_facets_nonio.h
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// Locale support -*- C++ -*-
// Copyright (C) 2007-2024 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 3, 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.
// Under Section 7 of GPL version 3, you are granted additional
// permissions described in the GCC Runtime Library Exception, version
// 3.1, as published by the Free Software Foundation.
// You should have received a copy of the GNU General Public License and
// a copy of the GCC Runtime Library Exception along with this program;
// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
// <http://www.gnu.org/licenses/>.
/** @file bits/locale_facets_nonio.h
* This is an internal header file, included by other library headers.
* Do not attempt to use it directly. @headername{locale}
*/
//
// ISO C++ 14882: 22.1 Locales
//
#ifndef _LOCALE_FACETS_NONIO_H
#define _LOCALE_FACETS_NONIO_H 1
#pragma GCC system_header
#include <ctime> // For struct tm
namespace std _GLIBCXX_VISIBILITY(default)
{
_GLIBCXX_BEGIN_NAMESPACE_VERSION
/**
* @brief Time format ordering data.
* @ingroup locales
*
* This class provides an enum representing different orderings of
* time: day, month, and year.
*/
class time_base
{
public:
enum dateorder { no_order, dmy, mdy, ymd, ydm };
};
template<typename _CharT>
struct __timepunct_cache : public locale::facet
{
// List of all known timezones, with GMT first.
static const _CharT* _S_timezones[14];
const _CharT* _M_date_format;
const _CharT* _M_date_era_format;
const _CharT* _M_time_format;
const _CharT* _M_time_era_format;
const _CharT* _M_date_time_format;
const _CharT* _M_date_time_era_format;
const _CharT* _M_am;
const _CharT* _M_pm;
const _CharT* _M_am_pm_format;
// Day names, starting with "C"'s Sunday.
const _CharT* _M_day1;
const _CharT* _M_day2;
const _CharT* _M_day3;
const _CharT* _M_day4;
const _CharT* _M_day5;
const _CharT* _M_day6;
const _CharT* _M_day7;
// Abbreviated day names, starting with "C"'s Sun.
const _CharT* _M_aday1;
const _CharT* _M_aday2;
const _CharT* _M_aday3;
const _CharT* _M_aday4;
const _CharT* _M_aday5;
const _CharT* _M_aday6;
const _CharT* _M_aday7;
// Month names, starting with "C"'s January.
const _CharT* _M_month01;
const _CharT* _M_month02;
const _CharT* _M_month03;
const _CharT* _M_month04;
const _CharT* _M_month05;
const _CharT* _M_month06;
const _CharT* _M_month07;
const _CharT* _M_month08;
const _CharT* _M_month09;
const _CharT* _M_month10;
const _CharT* _M_month11;
const _CharT* _M_month12;
// Abbreviated month names, starting with "C"'s Jan.
const _CharT* _M_amonth01;
const _CharT* _M_amonth02;
const _CharT* _M_amonth03;
const _CharT* _M_amonth04;
const _CharT* _M_amonth05;
const _CharT* _M_amonth06;
const _CharT* _M_amonth07;
const _CharT* _M_amonth08;
const _CharT* _M_amonth09;
const _CharT* _M_amonth10;
const _CharT* _M_amonth11;
const _CharT* _M_amonth12;
bool _M_allocated;
__timepunct_cache(size_t __refs = 0) : facet(__refs),
_M_date_format(0), _M_date_era_format(0), _M_time_format(0),
_M_time_era_format(0), _M_date_time_format(0),
_M_date_time_era_format(0), _M_am(0), _M_pm(0),
_M_am_pm_format(0), _M_day1(0), _M_day2(0), _M_day3(0),
_M_day4(0), _M_day5(0), _M_day6(0), _M_day7(0),
_M_aday1(0), _M_aday2(0), _M_aday3(0), _M_aday4(0),
_M_aday5(0), _M_aday6(0), _M_aday7(0), _M_month01(0),
_M_month02(0), _M_month03(0), _M_month04(0), _M_month05(0),
_M_month06(0), _M_month07(0), _M_month08(0), _M_month09(0),
_M_month10(0), _M_month11(0), _M_month12(0), _M_amonth01(0),
_M_amonth02(0), _M_amonth03(0), _M_amonth04(0),
_M_amonth05(0), _M_amonth06(0), _M_amonth07(0),
_M_amonth08(0), _M_amonth09(0), _M_amonth10(0),
_M_amonth11(0), _M_amonth12(0), _M_allocated(false)
{ }
~__timepunct_cache();
private:
__timepunct_cache&
operator=(const __timepunct_cache&);
explicit
__timepunct_cache(const __timepunct_cache&);
};
template<typename _CharT>
__timepunct_cache<_CharT>::~__timepunct_cache()
{
if (_M_allocated)
{
// Unused.
}
}
// Specializations.
template<>
const char*
__timepunct_cache<char>::_S_timezones[14];
#ifdef _GLIBCXX_USE_WCHAR_T
template<>
const wchar_t*
__timepunct_cache<wchar_t>::_S_timezones[14];
#endif
// Generic.
template<typename _CharT>
const _CharT* __timepunct_cache<_CharT>::_S_timezones[14];
template<typename _CharT>
class __timepunct : public locale::facet
{
public:
// Types:
typedef _CharT __char_type;
typedef __timepunct_cache<_CharT> __cache_type;
protected:
__cache_type* _M_data;
__c_locale _M_c_locale_timepunct;
const char* _M_name_timepunct;
public:
/// Numpunct facet id.
static locale::id id;
explicit
__timepunct(size_t __refs = 0);
explicit
__timepunct(__cache_type* __cache, size_t __refs = 0);
/**
* @brief Internal constructor. Not for general use.
*
* This is a constructor for use by the library itself to set up new
* locales.
*
* @param __cloc The C locale.
* @param __s The name of a locale.
* @param refs Passed to the base facet class.
*/
explicit
__timepunct(__c_locale __cloc, const char* __s, size_t __refs = 0);
// FIXME: for error checking purposes _M_put should return the return
// value of strftime/wcsftime.
void
_M_put(_CharT* __s, size_t __maxlen, const _CharT* __format,
const tm* __tm) const throw ();
void
_M_date_formats(const _CharT** __date) const
{
// Always have default first.
__date[0] = _M_data->_M_date_format;
__date[1] = _M_data->_M_date_era_format;
}
void
_M_time_formats(const _CharT** __time) const
{
// Always have default first.
__time[0] = _M_data->_M_time_format;
__time[1] = _M_data->_M_time_era_format;
}
void
_M_date_time_formats(const _CharT** __dt) const
{
// Always have default first.
__dt[0] = _M_data->_M_date_time_format;
__dt[1] = _M_data->_M_date_time_era_format;
}
#if !_GLIBCXX_INLINE_VERSION
void
_M_am_pm_format(const _CharT*) const
{ /* Kept for ABI compatibility, see PR65927 */ }
#endif
void
_M_am_pm_format(const _CharT** __ampm_format) const
{
__ampm_format[0] = _M_data->_M_am_pm_format;
}
void
_M_am_pm(const _CharT** __ampm) const
{
__ampm[0] = _M_data->_M_am;
__ampm[1] = _M_data->_M_pm;
}
void
_M_days(const _CharT** __days) const
{
__days[0] = _M_data->_M_day1;
__days[1] = _M_data->_M_day2;
__days[2] = _M_data->_M_day3;
__days[3] = _M_data->_M_day4;
__days[4] = _M_data->_M_day5;
__days[5] = _M_data->_M_day6;
__days[6] = _M_data->_M_day7;
}
void
_M_days_abbreviated(const _CharT** __days) const
{
__days[0] = _M_data->_M_aday1;
__days[1] = _M_data->_M_aday2;
__days[2] = _M_data->_M_aday3;
__days[3] = _M_data->_M_aday4;
__days[4] = _M_data->_M_aday5;
__days[5] = _M_data->_M_aday6;
__days[6] = _M_data->_M_aday7;
}
void
_M_months(const _CharT** __months) const
{
__months[0] = _M_data->_M_month01;
__months[1] = _M_data->_M_month02;
__months[2] = _M_data->_M_month03;
__months[3] = _M_data->_M_month04;
__months[4] = _M_data->_M_month05;
__months[5] = _M_data->_M_month06;
__months[6] = _M_data->_M_month07;
__months[7] = _M_data->_M_month08;
__months[8] = _M_data->_M_month09;
__months[9] = _M_data->_M_month10;
__months[10] = _M_data->_M_month11;
__months[11] = _M_data->_M_month12;
}
void
_M_months_abbreviated(const _CharT** __months) const
{
__months[0] = _M_data->_M_amonth01;
__months[1] = _M_data->_M_amonth02;
__months[2] = _M_data->_M_amonth03;
__months[3] = _M_data->_M_amonth04;
__months[4] = _M_data->_M_amonth05;
__months[5] = _M_data->_M_amonth06;
__months[6] = _M_data->_M_amonth07;
__months[7] = _M_data->_M_amonth08;
__months[8] = _M_data->_M_amonth09;
__months[9] = _M_data->_M_amonth10;
__months[10] = _M_data->_M_amonth11;
__months[11] = _M_data->_M_amonth12;
}
protected:
virtual
~__timepunct();
// For use at construction time only.
void
_M_initialize_timepunct(__c_locale __cloc = 0);
};
template<typename _CharT>
locale::id __timepunct<_CharT>::id;
// Specializations.
template<>
void
__timepunct<char>::_M_initialize_timepunct(__c_locale __cloc);
template<>
void
__timepunct<char>::_M_put(char*, size_t, const char*, const tm*) const throw ();
#ifdef _GLIBCXX_USE_WCHAR_T
template<>
void
__timepunct<wchar_t>::_M_initialize_timepunct(__c_locale __cloc);
template<>
void
__timepunct<wchar_t>::_M_put(wchar_t*, size_t, const wchar_t*,
const tm*) const throw ();
#endif
_GLIBCXX_END_NAMESPACE_VERSION
} // namespace
// Include host and configuration specific timepunct functions.
#include <bits/time_members.h>
namespace std _GLIBCXX_VISIBILITY(default)
{
_GLIBCXX_BEGIN_NAMESPACE_VERSION
struct __time_get_state
{
// Finalize state.
void
_M_finalize_state(tm* __tm);
unsigned int _M_have_I : 1;
unsigned int _M_have_wday : 1;
unsigned int _M_have_yday : 1;
unsigned int _M_have_mon : 1;
unsigned int _M_have_mday : 1;
unsigned int _M_have_uweek : 1;
unsigned int _M_have_wweek : 1;
unsigned int _M_have_century : 1;
unsigned int _M_is_pm : 1;
unsigned int _M_want_century : 1;
unsigned int _M_want_xday : 1;
unsigned int _M_pad1 : 5;
unsigned int _M_week_no : 6;
unsigned int _M_pad2 : 10;
int _M_century;
int _M_pad3;
};
_GLIBCXX_BEGIN_NAMESPACE_CXX11
/**
* @brief Primary class template time_get.
* @ingroup locales
*
* This facet encapsulates the code to parse and return a date or
* time from a string. It is used by the istream numeric
* extraction operators.
*
* The time_get template uses protected virtual functions to provide the
* actual results. The public accessors forward the call to the virtual
* functions. These virtual functions are hooks for developers to
* implement the behavior they require from the time_get facet.
*/
template<typename _CharT, typename _InIter>
class time_get : public locale::facet, public time_base
{
public:
// Types:
///@{
/// Public typedefs
typedef _CharT char_type;
typedef _InIter iter_type;
///@}
/// Numpunct facet id.
static locale::id id;
/**
* @brief Constructor performs initialization.
*
* This is the constructor provided by the standard.
*
* @param __refs Passed to the base facet class.
*/
explicit
time_get(size_t __refs = 0)
: facet (__refs) { }
/**
* @brief Return preferred order of month, day, and year.
*
* This function returns an enum from time_base::dateorder giving the
* preferred ordering if the format @a x given to time_put::put() only
* uses month, day, and year. If the format @a x for the associated
* locale uses other fields, this function returns
* time_base::dateorder::noorder.
*
* NOTE: The library always returns noorder at the moment.
*
* @return A member of time_base::dateorder.
*/
dateorder
date_order() const
{ return this->do_date_order(); }
/**
* @brief Parse input time string.
*
* This function parses a time according to the format @a X and puts the
* results into a user-supplied struct tm. The result is returned by
* calling time_get::do_get_time().
*
* If there is a valid time string according to format @a X, @a tm will
* be filled in accordingly and the returned iterator will point to the
* first character beyond the time string. If an error occurs before
* the end, err |= ios_base::failbit. If parsing reads all the
* characters, err |= ios_base::eofbit.
*
* @param __beg Start of string to parse.
* @param __end End of string to parse.
* @param __io Source of the locale.
* @param __err Error flags to set.
* @param __tm Pointer to struct tm to fill in.
* @return Iterator to first char beyond time string.
*/
iter_type
get_time(iter_type __beg, iter_type __end, ios_base& __io,
ios_base::iostate& __err, tm* __tm) const
{ return this->do_get_time(__beg, __end, __io, __err, __tm); }
/**
* @brief Parse input date string.
*
* This function parses a date according to the format @a x and puts the
* results into a user-supplied struct tm. The result is returned by
* calling time_get::do_get_date().
*
* If there is a valid date string according to format @a x, @a tm will
* be filled in accordingly and the returned iterator will point to the
* first character beyond the date string. If an error occurs before
* the end, err |= ios_base::failbit. If parsing reads all the
* characters, err |= ios_base::eofbit.
*
* @param __beg Start of string to parse.
* @param __end End of string to parse.
* @param __io Source of the locale.
* @param __err Error flags to set.
* @param __tm Pointer to struct tm to fill in.
* @return Iterator to first char beyond date string.
*/
iter_type
get_date(iter_type __beg, iter_type __end, ios_base& __io,
ios_base::iostate& __err, tm* __tm) const
{ return this->do_get_date(__beg, __end, __io, __err, __tm); }
/**
* @brief Parse input weekday string.
*
* This function parses a weekday name and puts the results into a
* user-supplied struct tm. The result is returned by calling
* time_get::do_get_weekday().
*
* Parsing starts by parsing an abbreviated weekday name. If a valid
* abbreviation is followed by a character that would lead to the full
* weekday name, parsing continues until the full name is found or an
* error occurs. Otherwise parsing finishes at the end of the
* abbreviated name.
*
* If an error occurs before the end, err |= ios_base::failbit. If
* parsing reads all the characters, err |= ios_base::eofbit.
*
* @param __beg Start of string to parse.
* @param __end End of string to parse.
* @param __io Source of the locale.
* @param __err Error flags to set.
* @param __tm Pointer to struct tm to fill in.
* @return Iterator to first char beyond weekday name.
*/
iter_type
get_weekday(iter_type __beg, iter_type __end, ios_base& __io,
ios_base::iostate& __err, tm* __tm) const
{ return this->do_get_weekday(__beg, __end, __io, __err, __tm); }
/**
* @brief Parse input month string.
*
* This function parses a month name and puts the results into a
* user-supplied struct tm. The result is returned by calling
* time_get::do_get_monthname().
*
* Parsing starts by parsing an abbreviated month name. If a valid
* abbreviation is followed by a character that would lead to the full
* month name, parsing continues until the full name is found or an
* error occurs. Otherwise parsing finishes at the end of the
* abbreviated name.
*
* If an error occurs before the end, err |= ios_base::failbit. If
* parsing reads all the characters, err |=
* ios_base::eofbit.
*
* @param __beg Start of string to parse.
* @param __end End of string to parse.
* @param __io Source of the locale.
* @param __err Error flags to set.
* @param __tm Pointer to struct tm to fill in.
* @return Iterator to first char beyond month name.
*/
iter_type
get_monthname(iter_type __beg, iter_type __end, ios_base& __io,
ios_base::iostate& __err, tm* __tm) const
{ return this->do_get_monthname(__beg, __end, __io, __err, __tm); }
/**
* @brief Parse input year string.
*
* This function reads up to 4 characters to parse a year string and
* puts the results into a user-supplied struct tm. The result is
* returned by calling time_get::do_get_year().
*
* 4 consecutive digits are interpreted as a full year. If there are
* exactly 2 consecutive digits, the library interprets this as the
* number of years since 1900.
*
* If an error occurs before the end, err |= ios_base::failbit. If
* parsing reads all the characters, err |= ios_base::eofbit.
*
* @param __beg Start of string to parse.
* @param __end End of string to parse.
* @param __io Source of the locale.
* @param __err Error flags to set.
* @param __tm Pointer to struct tm to fill in.
* @return Iterator to first char beyond year.
*/
iter_type
get_year(iter_type __beg, iter_type __end, ios_base& __io,
ios_base::iostate& __err, tm* __tm) const
{ return this->do_get_year(__beg, __end, __io, __err, __tm); }
#if __cplusplus >= 201103L
/**
* @brief Parse input string according to format.
*
* This function calls time_get::do_get with the provided
* parameters. @see do_get() and get().
*
* @param __s Start of string to parse.
* @param __end End of string to parse.
* @param __io Source of the locale.
* @param __err Error flags to set.
* @param __tm Pointer to struct tm to fill in.
* @param __format Format specifier.
* @param __modifier Format modifier.
* @return Iterator to first char not parsed.
*/
inline
iter_type get(iter_type __s, iter_type __end, ios_base& __io,
ios_base::iostate& __err, tm* __tm, char __format,
char __modifier = 0) const
{
return this->do_get(__s, __end, __io, __err, __tm, __format,
__modifier);
}
/**
* @brief Parse input string according to format.
*
* This function parses the input string according to a
* provided format string. It does the inverse of
* time_put::put. The format string follows the format
* specified for strftime(3)/strptime(3). The actual parsing
* is done by time_get::do_get.
*
* @param __s Start of string to parse.
* @param __end End of string to parse.
* @param __io Source of the locale.
* @param __err Error flags to set.
* @param __tm Pointer to struct tm to fill in.
* @param __fmt Start of the format string.
* @param __fmtend End of the format string.
* @return Iterator to first char not parsed.
*/
iter_type get(iter_type __s, iter_type __end, ios_base& __io,
ios_base::iostate& __err, tm* __tm, const char_type* __fmt,
const char_type* __fmtend) const;
#endif // __cplusplus >= 201103L
protected:
/// Destructor.
virtual
~time_get() { }
/**
* @brief Return preferred order of month, day, and year.
*
* This function returns an enum from time_base::dateorder giving the
* preferred ordering if the format @a x given to time_put::put() only
* uses month, day, and year. This function is a hook for derived
* classes to change the value returned.
*
* @return A member of time_base::dateorder.
*/
virtual dateorder
do_date_order() const;
/**
* @brief Parse input time string.
*
* This function parses a time according to the format @a x and puts the
* results into a user-supplied struct tm. This function is a hook for
* derived classes to change the value returned. @see get_time() for
* details.
*
* @param __beg Start of string to parse.
* @param __end End of string to parse.
* @param __io Source of the locale.
* @param __err Error flags to set.
* @param __tm Pointer to struct tm to fill in.
* @return Iterator to first char beyond time string.
*/
virtual iter_type
do_get_time(iter_type __beg, iter_type __end, ios_base& __io,
ios_base::iostate& __err, tm* __tm) const;
/**
* @brief Parse input date string.
*
* This function parses a date according to the format @a X and puts the
* results into a user-supplied struct tm. This function is a hook for
* derived classes to change the value returned. @see get_date() for
* details.
*
* @param __beg Start of string to parse.
* @param __end End of string to parse.
* @param __io Source of the locale.
* @param __err Error flags to set.
* @param __tm Pointer to struct tm to fill in.
* @return Iterator to first char beyond date string.
*/
virtual iter_type
do_get_date(iter_type __beg, iter_type __end, ios_base& __io,
ios_base::iostate& __err, tm* __tm) const;
/**
* @brief Parse input weekday string.
*
* This function parses a weekday name and puts the results into a
* user-supplied struct tm. This function is a hook for derived
* classes to change the value returned. @see get_weekday() for
* details.
*
* @param __beg Start of string to parse.
* @param __end End of string to parse.
* @param __io Source of the locale.
* @param __err Error flags to set.
* @param __tm Pointer to struct tm to fill in.
* @return Iterator to first char beyond weekday name.
*/
virtual iter_type
do_get_weekday(iter_type __beg, iter_type __end, ios_base&,
ios_base::iostate& __err, tm* __tm) const;
/**
* @brief Parse input month string.
*
* This function parses a month name and puts the results into a
* user-supplied struct tm. This function is a hook for derived
* classes to change the value returned. @see get_monthname() for
* details.
*
* @param __beg Start of string to parse.
* @param __end End of string to parse.
* @param __io Source of the locale.
* @param __err Error flags to set.
* @param __tm Pointer to struct tm to fill in.
* @return Iterator to first char beyond month name.
*/
virtual iter_type
do_get_monthname(iter_type __beg, iter_type __end, ios_base&,
ios_base::iostate& __err, tm* __tm) const;
/**
* @brief Parse input year string.
*
* This function reads up to 4 characters to parse a year string and
* puts the results into a user-supplied struct tm. This function is a
* hook for derived classes to change the value returned. @see
* get_year() for details.
*
* @param __beg Start of string to parse.
* @param __end End of string to parse.
* @param __io Source of the locale.
* @param __err Error flags to set.
* @param __tm Pointer to struct tm to fill in.
* @return Iterator to first char beyond year.
*/
virtual iter_type
do_get_year(iter_type __beg, iter_type __end, ios_base& __io,
ios_base::iostate& __err, tm* __tm) const;
#if __cplusplus >= 201103L
/**
* @brief Parse input string according to format.
*
* This function parses the string according to the provided
* format and optional modifier. This function is a hook for
* derived classes to change the value returned. @see get()
* for more details.
*
* @param __s Start of string to parse.
* @param __end End of string to parse.
* @param __f Source of the locale.
* @param __err Error flags to set.
* @param __tm Pointer to struct tm to fill in.
* @param __format Format specifier.
* @param __modifier Format modifier.
* @return Iterator to first char not parsed.
*/
#if _GLIBCXX_USE_CXX11_ABI
virtual
#endif
iter_type
do_get(iter_type __s, iter_type __end, ios_base& __f,
ios_base::iostate& __err, tm* __tm,
char __format, char __modifier) const;
#endif // __cplusplus >= 201103L
// Extract numeric component of length __len.
iter_type
_M_extract_num(iter_type __beg, iter_type __end, int& __member,
int __min, int __max, size_t __len,
ios_base& __io, ios_base::iostate& __err) const;
// Extract any unique array of string literals in a const _CharT* array.
iter_type
_M_extract_name(iter_type __beg, iter_type __end, int& __member,
const _CharT** __names, size_t __indexlen,
ios_base& __io, ios_base::iostate& __err) const;
// Extract day or month name in a const _CharT* array.
iter_type
_M_extract_wday_or_month(iter_type __beg, iter_type __end, int& __member,
const _CharT** __names, size_t __indexlen,
ios_base& __io, ios_base::iostate& __err) const;
// Extract on a component-by-component basis, via __format argument.
iter_type
_M_extract_via_format(iter_type __beg, iter_type __end, ios_base& __io,
ios_base::iostate& __err, tm* __tm,
const _CharT* __format) const;
// Extract on a component-by-component basis, via __format argument, with
// state.
iter_type
_M_extract_via_format(iter_type __beg, iter_type __end, ios_base& __io,
ios_base::iostate& __err, tm* __tm,
const _CharT* __format,
__time_get_state &__state) const;
};
template<typename _CharT, typename _InIter>
locale::id time_get<_CharT, _InIter>::id;
/// class time_get_byname [22.2.5.2].
template<typename _CharT, typename _InIter>
class time_get_byname : public time_get<_CharT, _InIter>
{
public:
// Types:
typedef _CharT char_type;
typedef _InIter iter_type;
explicit
time_get_byname(const char*, size_t __refs = 0)
: time_get<_CharT, _InIter>(__refs) { }
#if __cplusplus >= 201103L
explicit
time_get_byname(const string& __s, size_t __refs = 0)
: time_get_byname(__s.c_str(), __refs) { }
#endif
protected:
virtual
~time_get_byname() { }
};
_GLIBCXX_END_NAMESPACE_CXX11
/**
* @brief Primary class template time_put.
* @ingroup locales
*
* This facet encapsulates the code to format and output dates and times
* according to formats used by strftime().
*
* The time_put template uses protected virtual functions to provide the
* actual results. The public accessors forward the call to the virtual
* functions. These virtual functions are hooks for developers to
* implement the behavior they require from the time_put facet.
*/
template<typename _CharT, typename _OutIter>
class time_put : public locale::facet
{
public:
// Types:
///@{
/// Public typedefs
typedef _CharT char_type;
typedef _OutIter iter_type;
///@}
/// Numpunct facet id.
static locale::id id;
/**
* @brief Constructor performs initialization.
*
* This is the constructor provided by the standard.
*
* @param __refs Passed to the base facet class.
*/
explicit
time_put(size_t __refs = 0)
: facet(__refs) { }
/**
* @brief Format and output a time or date.
*
* This function formats the data in struct tm according to the
* provided format string. The format string is interpreted as by
* strftime().
*
* @param __s The stream to write to.
* @param __io Source of locale.
* @param __fill char_type to use for padding.
* @param __tm Struct tm with date and time info to format.
* @param __beg Start of format string.
* @param __end End of format string.
* @return Iterator after writing.
*/
iter_type
put(iter_type __s, ios_base& __io, char_type __fill, const tm* __tm,
const _CharT* __beg, const _CharT* __end) const;
/**
* @brief Format and output a time or date.
*
* This function formats the data in struct tm according to the
* provided format char and optional modifier. The format and modifier
* are interpreted as by strftime(). It does so by returning
* time_put::do_put().
*
* @param __s The stream to write to.
* @param __io Source of locale.
* @param __fill char_type to use for padding.
* @param __tm Struct tm with date and time info to format.
* @param __format Format char.
* @param __mod Optional modifier char.
* @return Iterator after writing.
*/
iter_type
put(iter_type __s, ios_base& __io, char_type __fill,
const tm* __tm, char __format, char __mod = 0) const
{ return this->do_put(__s, __io, __fill, __tm, __format, __mod); }
protected:
/// Destructor.
virtual
~time_put()
{ }
/**
* @brief Format and output a time or date.
*
* This function formats the data in struct tm according to the
* provided format char and optional modifier. This function is a hook
* for derived classes to change the value returned. @see put() for
* more details.
*
* @param __s The stream to write to.
* @param __io Source of locale.
* @param __fill char_type to use for padding.
* @param __tm Struct tm with date and time info to format.
* @param __format Format char.
* @param __mod Optional modifier char.
* @return Iterator after writing.
*/
virtual iter_type
do_put(iter_type __s, ios_base& __io, char_type __fill, const tm* __tm,
char __format, char __mod) const;
};
template<typename _CharT, typename _OutIter>
locale::id time_put<_CharT, _OutIter>::id;
/// class time_put_byname [22.2.5.4].
template<typename _CharT, typename _OutIter>
class time_put_byname : public time_put<_CharT, _OutIter>
{
public:
// Types:
typedef _CharT char_type;
typedef _OutIter iter_type;
explicit
time_put_byname(const char*, size_t __refs = 0)
: time_put<_CharT, _OutIter>(__refs)
{ }
#if __cplusplus >= 201103L
explicit
time_put_byname(const string& __s, size_t __refs = 0)
: time_put_byname(__s.c_str(), __refs) { }
#endif
protected:
virtual
~time_put_byname() { }
};
/**
* @brief Money format ordering data.
* @ingroup locales
*
* This class contains an ordered array of 4 fields to represent the
* pattern for formatting a money amount. Each field may contain one entry
* from the part enum. symbol, sign, and value must be present and the
* remaining field must contain either none or space. @see
* moneypunct::pos_format() and moneypunct::neg_format() for details of how
* these fields are interpreted.
*/
class money_base
{
public:
enum part { none, space, symbol, sign, value };
struct pattern { char field[4]; };
static const pattern _S_default_pattern;
enum
{
_S_minus,
_S_zero,
_S_end = 11
};
// String literal of acceptable (narrow) input/output, for
// money_get/money_put. "-0123456789"
static const char* _S_atoms;
// Construct and return valid pattern consisting of some combination of:
// space none symbol sign value
_GLIBCXX_CONST static pattern
_S_construct_pattern(char __precedes, char __space, char __posn) throw ();
};
template<typename _CharT, bool _Intl>
struct __moneypunct_cache : public locale::facet
{
const char* _M_grouping;
size_t _M_grouping_size;
bool _M_use_grouping;
_CharT _M_decimal_point;
_CharT _M_thousands_sep;
const _CharT* _M_curr_symbol;
size_t _M_curr_symbol_size;