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std::time_get(3) Library Functions Manual std::time_get(3)

NAME

std::time_get -

Facet for parsing dates and times.

SYNOPSIS

Inherits std::locale::facet, and std::time_base.

Inherited by std::time_get_byname< _CharT, _InIter >.

Public Types


typedef basic_string< _CharT > __string_type
enum dateorder { no_order, dmy, mdy, ymd, ydm }



typedef _CharT char_type
typedef _InIter iter_type


Public Member Functions


dateorder date_order () const
iter_type get_date (iter_type __beg, iter_type __end, ios_base &__io, ios_base::iostate &__err, tm *__tm) const
iter_type get_monthname (iter_type __beg, iter_type __end, ios_base &__io, ios_base::iostate &__err, tm *__tm) const
iter_type get_time (iter_type __beg, iter_type __end, ios_base &__io, ios_base::iostate &__err, tm *__tm) const
iter_type get_weekday (iter_type __beg, iter_type __end, ios_base &__io, ios_base::iostate &__err, tm *__tm) const
iter_type get_year (iter_type __beg, iter_type __end, ios_base &__io, ios_base::iostate &__err, tm *__tm) const
time_get (size_t __refs=0)

Static Public Attributes


static locale::id id

Protected Member Functions


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
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
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
virtual dateorder do_date_order () const
virtual iter_type do_get_date (iter_type __beg, iter_type __end, ios_base &__io, ios_base::iostate &__err, tm *__tm) const
virtual iter_type do_get_monthname (iter_type __beg, iter_type __end, ios_base &, ios_base::iostate &__err, tm *__tm) const
virtual iter_type do_get_time (iter_type __beg, iter_type __end, ios_base &__io, ios_base::iostate &__err, tm *__tm) const
virtual iter_type do_get_weekday (iter_type __beg, iter_type __end, ios_base &, ios_base::iostate &__err, tm *__tm) const
virtual iter_type do_get_year (iter_type __beg, iter_type __end, ios_base &__io, ios_base::iostate &__err, tm *__tm) const
virtual ~time_get ()

Static Protected Member Functions


static __c_locale _S_clone_c_locale (__c_locale &__cloc)
static void _S_create_c_locale (__c_locale &__cloc, const char *__s, __c_locale __old=0)
static void _S_destroy_c_locale (__c_locale &__cloc)
static __c_locale _S_get_c_locale ()
static const char * _S_get_c_name ()

Friends


class locale::_Impl

Detailed Description

template<typename _CharT, typename _InIter> class std::time_get< _CharT, _InIter >

Facet for parsing dates and times.

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.

Definition at line 361 of file locale_facets_nonio.h.

Member Typedef Documentation

template<typename _CharT , typename _InIter > typedef _CharT std::time_get< _CharT, _InIter >::char_type

Public typedefs.

Reimplemented in std::time_get_byname< _CharT, _InIter >.

Definition at line 367 of file locale_facets_nonio.h.

template<typename _CharT , typename _InIter > typedef _InIter std::time_get< _CharT, _InIter >::iter_type

Public typedefs.

Reimplemented in std::time_get_byname< _CharT, _InIter >.

Definition at line 368 of file locale_facets_nonio.h.

Constructor & Destructor Documentation

template<typename _CharT , typename _InIter > std::time_get< _CharT, _InIter >::time_get (size_t __refs = 0) [inline, explicit]

Constructor performs initialization. This is the constructor provided by the standard.

Parameters:

refs Passed to the base facet class.

Definition at line 383 of file locale_facets_nonio.h.

template<typename _CharT , typename _InIter > virtual std::time_get< _CharT, _InIter >::~time_get () [inline, protected, virtual]

Destructor.

Definition at line 539 of file locale_facets_nonio.h.

Member Function Documentation

template<typename _CharT , typename _InIter > dateorder std::time_get< _CharT, _InIter >::date_order () const [inline]

Return preferred order of month, day, and year. This function returns an enum from timebase::dateorder giving the preferred ordering if the format 'x' given to time_put::put() only uses month, day, and year. If the format 'x' for the associated locale uses other fields, this function returns timebase::dateorder::noorder.

NOTE: The library always returns noorder at the moment.

Returns:

A member of timebase::dateorder.

Definition at line 400 of file locale_facets_nonio.h.

template<typename _CharT , typename _InIter > time_base::dateorder std::time_get< _CharT, _InIter >::do_date_order () const [inline, protected, virtual]

Return preferred order of month, day, and year. This function returns an enum from timebase::dateorder giving the preferred ordering if the format '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.

Returns:

A member of timebase::dateorder.

Definition at line 603 of file locale_facets_nonio.tcc.

template<typename _CharT , typename _InIter > _InIter std::time_get< _CharT, _InIter >::do_get_date (iter_type __beg, iter_type __end, ios_base & __io, ios_base::iostate & __err, tm * __tm) const [inline, protected, virtual]

Parse input date string. This function parses a date according to the format '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 also:

get_date() for details.

Parameters:

beg Start of string to parse.
end End of string to parse.
io Source of the locale.
err Error flags to set.
tm Pointer to struct tm to fill in.

Returns:

Iterator to first char beyond date string.

Definition at line 955 of file locale_facets_nonio.tcc.

References std::ios_base::_M_getloc(), and std::ios_base::eofbit.

template<typename _CharT , typename _InIter > _InIter std::time_get< _CharT, _InIter >::do_get_monthname (iter_type __beg, iter_type __end, ios_base & __io, ios_base::iostate & __err, tm * __tm) const [inline, protected, virtual]

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 also:

get_monthname() for details.

Parameters:

beg Start of string to parse.
end End of string to parse.
io Source of the locale.
err Error flags to set.
tm Pointer to struct tm to fill in.

Returns:

Iterator to first char beyond month name.

Definition at line 1021 of file locale_facets_nonio.tcc.

References std::ios_base::_M_getloc(), std::ios_base::eofbit, std::ios_base::failbit, and std::ios_base::goodbit.

template<typename _CharT , typename _InIter > _InIter std::time_get< _CharT, _InIter >::do_get_time (iter_type __beg, iter_type __end, ios_base & __io, ios_base::iostate & __err, tm * __tm) const [inline, protected, virtual]

Parse input time string. This function parses a time according to the format '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 also:

get_time() for details.

Parameters:

beg Start of string to parse.
end End of string to parse.
io Source of the locale.
err Error flags to set.
tm Pointer to struct tm to fill in.

Returns:

Iterator to first char beyond time string.

Definition at line 938 of file locale_facets_nonio.tcc.

References std::ios_base::_M_getloc(), and std::ios_base::eofbit.

template<typename _CharT , typename _InIter > _InIter std::time_get< _CharT, _InIter >::do_get_weekday (iter_type __beg, iter_type __end, ios_base & __io, ios_base::iostate & __err, tm * __tm) const [inline, protected, virtual]

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 also:

get_weekday() for details.

Parameters:

beg Start of string to parse.
end End of string to parse.
io Source of the locale.
err Error flags to set.
tm Pointer to struct tm to fill in.

Returns:

Iterator to first char beyond weekday name.

Definition at line 972 of file locale_facets_nonio.tcc.

References std::ios_base::_M_getloc(), std::ios_base::eofbit, std::ios_base::failbit, and std::ios_base::goodbit.

template<typename _CharT , typename _InIter > _InIter std::time_get< _CharT, _InIter >::do_get_year (iter_type __beg, iter_type __end, ios_base & __io, ios_base::iostate & __err, tm * __tm) const [inline, protected, virtual]

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 also:

get_year() for details.

Parameters:

beg Start of string to parse.
end End of string to parse.
io Source of the locale.
err Error flags to set.
tm Pointer to struct tm to fill in.

Returns:

Iterator to first char beyond year.

Definition at line 1070 of file locale_facets_nonio.tcc.

References std::ios_base::_M_getloc(), std::ios_base::eofbit, std::ios_base::failbit, and std::__ctype_abstract_base< _CharT >::narrow().

template<typename _CharT , typename _InIter > iter_type std::time_get< _CharT, _InIter >::get_date (iter_type __beg, iter_type __end, ios_base & __io, ios_base::iostate & __err, tm * __tm) const [inline]

Parse input date string. This function parses a date according to the format '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 'X', 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.

Parameters:

beg Start of string to parse.
end End of string to parse.
io Source of the locale.
err Error flags to set.
tm Pointer to struct tm to fill in.

Returns:

Iterator to first char beyond date string.

Definition at line 449 of file locale_facets_nonio.h.

template<typename _CharT , typename _InIter > iter_type std::time_get< _CharT, _InIter >::get_monthname (iter_type __beg, iter_type __end, ios_base & __io, ios_base::iostate & __err, tm * __tm) const [inline]

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.

Parameters:

beg Start of string to parse.
end End of string to parse.
io Source of the locale.
err Error flags to set.
tm Pointer to struct tm to fill in.

Returns:

Iterator to first char beyond month name.

Definition at line 506 of file locale_facets_nonio.h.

template<typename _CharT , typename _InIter > iter_type std::time_get< _CharT, _InIter >::get_time (iter_type __beg, iter_type __end, ios_base & __io, ios_base::iostate & __err, tm * __tm) const [inline]

Parse input time string. This function parses a time according to the format '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 'x', 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.

Parameters:

beg Start of string to parse.
end End of string to parse.
io Source of the locale.
err Error flags to set.
tm Pointer to struct tm to fill in.

Returns:

Iterator to first char beyond time string.

Definition at line 424 of file locale_facets_nonio.h.

template<typename _CharT , typename _InIter > iter_type std::time_get< _CharT, _InIter >::get_weekday (iter_type __beg, iter_type __end, ios_base & __io, ios_base::iostate & __err, tm * __tm) const [inline]

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.

Parameters:

beg Start of string to parse.
end End of string to parse.
io Source of the locale.
err Error flags to set.
tm Pointer to struct tm to fill in.

Returns:

Iterator to first char beyond weekday name.

Definition at line 477 of file locale_facets_nonio.h.

template<typename _CharT , typename _InIter > iter_type std::time_get< _CharT, _InIter >::get_year (iter_type __beg, iter_type __end, ios_base & __io, ios_base::iostate & __err, tm * __tm) const [inline]

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.

Parameters:

beg Start of string to parse.
end End of string to parse.
io Source of the locale.
err Error flags to set.
tm Pointer to struct tm to fill in.

Returns:

Iterator to first char beyond year.

Definition at line 532 of file locale_facets_nonio.h.

Member Data Documentation

template<typename _CharT , typename _InIter > locale::id std::time_get< _CharT, _InIter >::id [inline, static]

Numpunct facet id.

Definition at line 373 of file locale_facets_nonio.h.

Author

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19 Jun 2018 libstdc++