libstdc++
std::num_get< _CharT, _InIter > Class Template Reference
Inheritance diagram for std::num_get< _CharT, _InIter >:

List of all members.

Public Types

typedef _CharT char_type
typedef _InIter iter_type

Public Member Functions

 num_get (size_t __refs=0)
iter_type get (iter_type __in, iter_type __end, ios_base &__io, ios_base::iostate &__err, bool &__v) const
iter_type get (iter_type __in, iter_type __end, ios_base &__io, ios_base::iostate &__err, void *&__v) const
iter_type get (iter_type __in, iter_type __end, ios_base &__io, ios_base::iostate &__err, long &__v) const
iter_type get (iter_type __in, iter_type __end, ios_base &__io, ios_base::iostate &__err, unsigned short &__v) const
iter_type get (iter_type __in, iter_type __end, ios_base &__io, ios_base::iostate &__err, unsigned int &__v) const
iter_type get (iter_type __in, iter_type __end, ios_base &__io, ios_base::iostate &__err, unsigned long &__v) const
iter_type get (iter_type __in, iter_type __end, ios_base &__io, ios_base::iostate &__err, long long &__v) const
iter_type get (iter_type __in, iter_type __end, ios_base &__io, ios_base::iostate &__err, unsigned long long &__v) const
iter_type get (iter_type __in, iter_type __end, ios_base &__io, ios_base::iostate &__err, float &__v) const
iter_type get (iter_type __in, iter_type __end, ios_base &__io, ios_base::iostate &__err, double &__v) const
iter_type get (iter_type __in, iter_type __end, ios_base &__io, ios_base::iostate &__err, long double &__v) const

Static Public Attributes

static locale::id id

Protected Member Functions

virtual ~num_get ()
iter_type _M_extract_float (iter_type, iter_type, ios_base &, ios_base::iostate &, string &) const
template<typename _ValueT >
iter_type _M_extract_int (iter_type, iter_type, ios_base &, ios_base::iostate &, _ValueT &) const
template<typename _CharT2 >
__gnu_cxx::__enable_if
< __is_char< _CharT2 >
::__value, int >::__type 
_M_find (const _CharT2 *, size_t __len, _CharT2 __c) const
template<typename _CharT2 >
__gnu_cxx::__enable_if
<!__is_char< _CharT2 >
::__value, int >::__type 
_M_find (const _CharT2 *__zero, size_t __len, _CharT2 __c) const
virtual iter_type do_get (iter_type, iter_type, ios_base &, ios_base::iostate &, bool &) const
virtual iter_type do_get (iter_type __beg, iter_type __end, ios_base &__io, ios_base::iostate &__err, long &__v) const
virtual iter_type do_get (iter_type __beg, iter_type __end, ios_base &__io, ios_base::iostate &__err, unsigned short &__v) const
virtual iter_type do_get (iter_type __beg, iter_type __end, ios_base &__io, ios_base::iostate &__err, unsigned int &__v) const
virtual iter_type do_get (iter_type __beg, iter_type __end, ios_base &__io, ios_base::iostate &__err, unsigned long &__v) const
virtual iter_type do_get (iter_type __beg, iter_type __end, ios_base &__io, ios_base::iostate &__err, long long &__v) const
virtual iter_type do_get (iter_type __beg, iter_type __end, ios_base &__io, ios_base::iostate &__err, unsigned long long &__v) const
virtual iter_type do_get (iter_type, iter_type, ios_base &, ios_base::iostate &, float &) const
virtual iter_type do_get (iter_type, iter_type, ios_base &, ios_base::iostate &, double &) const
virtual iter_type do_get (iter_type, iter_type, ios_base &, ios_base::iostate &, long double &) const
virtual iter_type do_get (iter_type, iter_type, ios_base &, ios_base::iostate &, void *&) const

Static Protected Member Functions

static __c_locale _S_clone_c_locale (__c_locale &__cloc) throw ()
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 () throw ()
static __c_locale _S_lc_ctype_c_locale (__c_locale __cloc, const char *__s)

Detailed Description

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

Primary class template num_get.

This facet encapsulates the code to parse and return a number from a string. It is used by the istream numeric extraction operators.

The num_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 num_get facet.

Definition at line 1917 of file locale_facets.h.


Member Typedef Documentation

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

Public typedefs.

Definition at line 1923 of file locale_facets.h.

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

Public typedefs.

Definition at line 1924 of file locale_facets.h.


Constructor & Destructor Documentation

template<typename _CharT , typename _InIter >
std::num_get< _CharT, _InIter >::num_get ( size_t  __refs = 0)
inlineexplicit

Constructor performs initialization.

This is the constructor provided by the standard.

Parameters:
__refsPassed to the base facet class.

Definition at line 1938 of file locale_facets.h.

template<typename _CharT , typename _InIter >
virtual std::num_get< _CharT, _InIter >::~num_get ( )
inlineprotectedvirtual

Destructor.

Definition at line 2107 of file locale_facets.h.


Member Function Documentation

template<typename _CharT , typename _InIter >
_InIter std::num_get< _CharT, _InIter >::do_get ( iter_type  __beg,
iter_type  __end,
ios_base __io,
ios_base::iostate __err,
bool &  __v 
) const
protectedvirtual

Numeric parsing.

Parses the input stream into the variable v. This function is a hook for derived classes to change the value returned.

See also:
get() for more details.
Parameters:
__begStart of input stream.
__endEnd of input stream.
__ioSource of locale and flags.
__errError flags to set.
__vValue to format and insert.
Returns:
Iterator after reading.

Definition at line 592 of file locale_facets.tcc.

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

template<typename _CharT , typename _InIter >
virtual iter_type std::num_get< _CharT, _InIter >::do_get ( iter_type  __beg,
iter_type  __end,
ios_base __io,
ios_base::iostate __err,
long &  __v 
) const
inlineprotectedvirtual

Numeric parsing.

Parses the input stream into the variable v. This function is a hook for derived classes to change the value returned.

See also:
get() for more details.
Parameters:
__begStart of input stream.
__endEnd of input stream.
__ioSource of locale and flags.
__errError flags to set.
__vValue to format and insert.
Returns:
Iterator after reading.

Definition at line 2175 of file locale_facets.h.

template<typename _CharT , typename _InIter >
virtual iter_type std::num_get< _CharT, _InIter >::do_get ( iter_type  __beg,
iter_type  __end,
ios_base __io,
ios_base::iostate __err,
unsigned short &  __v 
) const
inlineprotectedvirtual

Numeric parsing.

Parses the input stream into the variable v. This function is a hook for derived classes to change the value returned.

See also:
get() for more details.
Parameters:
__begStart of input stream.
__endEnd of input stream.
__ioSource of locale and flags.
__errError flags to set.
__vValue to format and insert.
Returns:
Iterator after reading.

Definition at line 2180 of file locale_facets.h.

template<typename _CharT , typename _InIter >
virtual iter_type std::num_get< _CharT, _InIter >::do_get ( iter_type  __beg,
iter_type  __end,
ios_base __io,
ios_base::iostate __err,
unsigned int &  __v 
) const
inlineprotectedvirtual

Numeric parsing.

Parses the input stream into the variable v. This function is a hook for derived classes to change the value returned.

See also:
get() for more details.
Parameters:
__begStart of input stream.
__endEnd of input stream.
__ioSource of locale and flags.
__errError flags to set.
__vValue to format and insert.
Returns:
Iterator after reading.

Definition at line 2185 of file locale_facets.h.

template<typename _CharT , typename _InIter >
virtual iter_type std::num_get< _CharT, _InIter >::do_get ( iter_type  __beg,
iter_type  __end,
ios_base __io,
ios_base::iostate __err,
unsigned long &  __v 
) const
inlineprotectedvirtual

Numeric parsing.

Parses the input stream into the variable v. This function is a hook for derived classes to change the value returned.

See also:
get() for more details.
Parameters:
__begStart of input stream.
__endEnd of input stream.
__ioSource of locale and flags.
__errError flags to set.
__vValue to format and insert.
Returns:
Iterator after reading.

Definition at line 2190 of file locale_facets.h.

template<typename _CharT , typename _InIter >
virtual iter_type std::num_get< _CharT, _InIter >::do_get ( iter_type  __beg,
iter_type  __end,
ios_base __io,
ios_base::iostate __err,
long long &  __v 
) const
inlineprotectedvirtual

Numeric parsing.

Parses the input stream into the variable v. This function is a hook for derived classes to change the value returned.

See also:
get() for more details.
Parameters:
__begStart of input stream.
__endEnd of input stream.
__ioSource of locale and flags.
__errError flags to set.
__vValue to format and insert.
Returns:
Iterator after reading.

Definition at line 2196 of file locale_facets.h.

template<typename _CharT , typename _InIter >
virtual iter_type std::num_get< _CharT, _InIter >::do_get ( iter_type  __beg,
iter_type  __end,
ios_base __io,
ios_base::iostate __err,
unsigned long long &  __v 
) const
inlineprotectedvirtual

Numeric parsing.

Parses the input stream into the variable v. This function is a hook for derived classes to change the value returned.

See also:
get() for more details.
Parameters:
__begStart of input stream.
__endEnd of input stream.
__ioSource of locale and flags.
__errError flags to set.
__vValue to format and insert.
Returns:
Iterator after reading.

Definition at line 2201 of file locale_facets.h.

template<typename _CharT , typename _InIter >
_InIter std::num_get< _CharT, _InIter >::do_get ( iter_type  __beg,
iter_type  __end,
ios_base __io,
ios_base::iostate __err,
float &  __v 
) const
protectedvirtual

Numeric parsing.

Parses the input stream into the variable v. This function is a hook for derived classes to change the value returned.

See also:
get() for more details.
Parameters:
__begStart of input stream.
__endEnd of input stream.
__ioSource of locale and flags.
__errError flags to set.
__vValue to format and insert.
Returns:
Iterator after reading.

Definition at line 688 of file locale_facets.tcc.

References std::basic_string< _CharT, _Traits, _Alloc >::c_str(), std::ios_base::eofbit, and std::basic_string< _CharT, _Traits, _Alloc >::reserve().

template<typename _CharT , typename _InIter >
_InIter std::num_get< _CharT, _InIter >::do_get ( iter_type  __beg,
iter_type  __end,
ios_base __io,
ios_base::iostate __err,
double &  __v 
) const
protectedvirtual

Numeric parsing.

Parses the input stream into the variable v. This function is a hook for derived classes to change the value returned.

See also:
get() for more details.
Parameters:
__begStart of input stream.
__endEnd of input stream.
__ioSource of locale and flags.
__errError flags to set.
__vValue to format and insert.
Returns:
Iterator after reading.

Definition at line 703 of file locale_facets.tcc.

References std::basic_string< _CharT, _Traits, _Alloc >::c_str(), std::ios_base::eofbit, and std::basic_string< _CharT, _Traits, _Alloc >::reserve().

template<typename _CharT , typename _InIter >
_InIter std::num_get< _CharT, _InIter >::do_get ( iter_type  __beg,
iter_type  __end,
ios_base __io,
ios_base::iostate __err,
long double &  __v 
) const
protectedvirtual

Numeric parsing.

Parses the input stream into the variable v. This function is a hook for derived classes to change the value returned.

See also:
get() for more details.
Parameters:
__begStart of input stream.
__endEnd of input stream.
__ioSource of locale and flags.
__errError flags to set.
__vValue to format and insert.
Returns:
Iterator after reading.

Definition at line 735 of file locale_facets.tcc.

References std::basic_string< _CharT, _Traits, _Alloc >::c_str(), std::ios_base::eofbit, and std::basic_string< _CharT, _Traits, _Alloc >::reserve().

template<typename _CharT , typename _InIter >
_InIter std::num_get< _CharT, _InIter >::do_get ( iter_type  __beg,
iter_type  __end,
ios_base __io,
ios_base::iostate __err,
void *&  __v 
) const
protectedvirtual

Numeric parsing.

Parses the input stream into the variable v. This function is a hook for derived classes to change the value returned.

See also:
get() for more details.
Parameters:
__begStart of input stream.
__endEnd of input stream.
__ioSource of locale and flags.
__errError flags to set.
__vValue to format and insert.
Returns:
Iterator after reading.

Definition at line 750 of file locale_facets.tcc.

References std::ios_base::basefield, std::ios_base::flags(), and std::ios_base::hex.

template<typename _CharT , typename _InIter >
iter_type std::num_get< _CharT, _InIter >::get ( iter_type  __in,
iter_type  __end,
ios_base __io,
ios_base::iostate __err,
bool &  __v 
) const
inline

Numeric parsing.

Parses the input stream into the bool v. It does so by calling num_get::do_get().

If ios_base::boolalpha is set, attempts to read ctype<CharT>::truename() or ctype<CharT>::falsename(). Sets v to true or false if successful. Sets err to ios_base::failbit if reading the string fails. Sets err to ios_base::eofbit if the stream is emptied.

If ios_base::boolalpha is not set, proceeds as with reading a long, except if the value is 1, sets v to true, if the value is 0, sets v to false, and otherwise set err to ios_base::failbit.

Parameters:
__inStart of input stream.
__endEnd of input stream.
__ioSource of locale and flags.
__errError flags to set.
__vValue to format and insert.
Returns:
Iterator after reading.

Definition at line 1964 of file locale_facets.h.

Referenced by std::basic_istream< _CharT, _Traits >::operator>>().

template<typename _CharT , typename _InIter >
iter_type std::num_get< _CharT, _InIter >::get ( iter_type  __in,
iter_type  __end,
ios_base __io,
ios_base::iostate __err,
long &  __v 
) const
inline

Numeric parsing.

Parses the input stream into the integral variable v. It does so by calling num_get::do_get().

Parsing is affected by the flag settings in io.

The basic parse is affected by the value of io.flags() & ios_base::basefield. If equal to ios_base::oct, parses like the scanf o specifier. Else if equal to ios_base::hex, parses like X specifier. Else if basefield equal to 0, parses like the i specifier. Otherwise, parses like d for signed and u for unsigned types. The matching type length modifier is also used.

Digit grouping is interpreted according to numpunct::grouping() and numpunct::thousands_sep(). If the pattern of digit groups isn't consistent, sets err to ios_base::failbit.

If parsing the string yields a valid value for v, v is set. Otherwise, sets err to ios_base::failbit and leaves v unaltered. Sets err to ios_base::eofbit if the stream is emptied.

Parameters:
__inStart of input stream.
__endEnd of input stream.
__ioSource of locale and flags.
__errError flags to set.
__vValue to format and insert.
Returns:
Iterator after reading.

Definition at line 2000 of file locale_facets.h.

template<typename _CharT , typename _InIter >
iter_type std::num_get< _CharT, _InIter >::get ( iter_type  __in,
iter_type  __end,
ios_base __io,
ios_base::iostate __err,
unsigned short &  __v 
) const
inline

Numeric parsing.

Parses the input stream into the integral variable v. It does so by calling num_get::do_get().

Parsing is affected by the flag settings in io.

The basic parse is affected by the value of io.flags() & ios_base::basefield. If equal to ios_base::oct, parses like the scanf o specifier. Else if equal to ios_base::hex, parses like X specifier. Else if basefield equal to 0, parses like the i specifier. Otherwise, parses like d for signed and u for unsigned types. The matching type length modifier is also used.

Digit grouping is interpreted according to numpunct::grouping() and numpunct::thousands_sep(). If the pattern of digit groups isn't consistent, sets err to ios_base::failbit.

If parsing the string yields a valid value for v, v is set. Otherwise, sets err to ios_base::failbit and leaves v unaltered. Sets err to ios_base::eofbit if the stream is emptied.

Parameters:
__inStart of input stream.
__endEnd of input stream.
__ioSource of locale and flags.
__errError flags to set.
__vValue to format and insert.
Returns:
Iterator after reading.

Definition at line 2005 of file locale_facets.h.

template<typename _CharT , typename _InIter >
iter_type std::num_get< _CharT, _InIter >::get ( iter_type  __in,
iter_type  __end,
ios_base __io,
ios_base::iostate __err,
unsigned int &  __v 
) const
inline

Numeric parsing.

Parses the input stream into the integral variable v. It does so by calling num_get::do_get().

Parsing is affected by the flag settings in io.

The basic parse is affected by the value of io.flags() & ios_base::basefield. If equal to ios_base::oct, parses like the scanf o specifier. Else if equal to ios_base::hex, parses like X specifier. Else if basefield equal to 0, parses like the i specifier. Otherwise, parses like d for signed and u for unsigned types. The matching type length modifier is also used.

Digit grouping is interpreted according to numpunct::grouping() and numpunct::thousands_sep(). If the pattern of digit groups isn't consistent, sets err to ios_base::failbit.

If parsing the string yields a valid value for v, v is set. Otherwise, sets err to ios_base::failbit and leaves v unaltered. Sets err to ios_base::eofbit if the stream is emptied.

Parameters:
__inStart of input stream.
__endEnd of input stream.
__ioSource of locale and flags.
__errError flags to set.
__vValue to format and insert.
Returns:
Iterator after reading.

Definition at line 2010 of file locale_facets.h.

template<typename _CharT , typename _InIter >
iter_type std::num_get< _CharT, _InIter >::get ( iter_type  __in,
iter_type  __end,
ios_base __io,
ios_base::iostate __err,
unsigned long &  __v 
) const
inline

Numeric parsing.

Parses the input stream into the integral variable v. It does so by calling num_get::do_get().

Parsing is affected by the flag settings in io.

The basic parse is affected by the value of io.flags() & ios_base::basefield. If equal to ios_base::oct, parses like the scanf o specifier. Else if equal to ios_base::hex, parses like X specifier. Else if basefield equal to 0, parses like the i specifier. Otherwise, parses like d for signed and u for unsigned types. The matching type length modifier is also used.

Digit grouping is interpreted according to numpunct::grouping() and numpunct::thousands_sep(). If the pattern of digit groups isn't consistent, sets err to ios_base::failbit.

If parsing the string yields a valid value for v, v is set. Otherwise, sets err to ios_base::failbit and leaves v unaltered. Sets err to ios_base::eofbit if the stream is emptied.

Parameters:
__inStart of input stream.
__endEnd of input stream.
__ioSource of locale and flags.
__errError flags to set.
__vValue to format and insert.
Returns:
Iterator after reading.

Definition at line 2015 of file locale_facets.h.

template<typename _CharT , typename _InIter >
iter_type std::num_get< _CharT, _InIter >::get ( iter_type  __in,
iter_type  __end,
ios_base __io,
ios_base::iostate __err,
long long &  __v 
) const
inline

Numeric parsing.

Parses the input stream into the integral variable v. It does so by calling num_get::do_get().

Parsing is affected by the flag settings in io.

The basic parse is affected by the value of io.flags() & ios_base::basefield. If equal to ios_base::oct, parses like the scanf o specifier. Else if equal to ios_base::hex, parses like X specifier. Else if basefield equal to 0, parses like the i specifier. Otherwise, parses like d for signed and u for unsigned types. The matching type length modifier is also used.

Digit grouping is interpreted according to numpunct::grouping() and numpunct::thousands_sep(). If the pattern of digit groups isn't consistent, sets err to ios_base::failbit.

If parsing the string yields a valid value for v, v is set. Otherwise, sets err to ios_base::failbit and leaves v unaltered. Sets err to ios_base::eofbit if the stream is emptied.

Parameters:
__inStart of input stream.
__endEnd of input stream.
__ioSource of locale and flags.
__errError flags to set.
__vValue to format and insert.
Returns:
Iterator after reading.

Definition at line 2021 of file locale_facets.h.

template<typename _CharT , typename _InIter >
iter_type std::num_get< _CharT, _InIter >::get ( iter_type  __in,
iter_type  __end,
ios_base __io,
ios_base::iostate __err,
unsigned long long &  __v 
) const
inline

Numeric parsing.

Parses the input stream into the integral variable v. It does so by calling num_get::do_get().

Parsing is affected by the flag settings in io.

The basic parse is affected by the value of io.flags() & ios_base::basefield. If equal to ios_base::oct, parses like the scanf o specifier. Else if equal to ios_base::hex, parses like X specifier. Else if basefield equal to 0, parses like the i specifier. Otherwise, parses like d for signed and u for unsigned types. The matching type length modifier is also used.

Digit grouping is interpreted according to numpunct::grouping() and numpunct::thousands_sep(). If the pattern of digit groups isn't consistent, sets err to ios_base::failbit.

If parsing the string yields a valid value for v, v is set. Otherwise, sets err to ios_base::failbit and leaves v unaltered. Sets err to ios_base::eofbit if the stream is emptied.

Parameters:
__inStart of input stream.
__endEnd of input stream.
__ioSource of locale and flags.
__errError flags to set.
__vValue to format and insert.
Returns:
Iterator after reading.

Definition at line 2026 of file locale_facets.h.

template<typename _CharT , typename _InIter >
iter_type std::num_get< _CharT, _InIter >::get ( iter_type  __in,
iter_type  __end,
ios_base __io,
ios_base::iostate __err,
float &  __v 
) const
inline

Numeric parsing.

Parses the input stream into the integral variable v. It does so by calling num_get::do_get().

The input characters are parsed like the scanf g specifier. The matching type length modifier is also used.

The decimal point character used is numpunct::decimal_point(). Digit grouping is interpreted according to numpunct::grouping() and numpunct::thousands_sep(). If the pattern of digit groups isn't consistent, sets err to ios_base::failbit.

If parsing the string yields a valid value for v, v is set. Otherwise, sets err to ios_base::failbit and leaves v unaltered. Sets err to ios_base::eofbit if the stream is emptied.

Parameters:
__inStart of input stream.
__endEnd of input stream.
__ioSource of locale and flags.
__errError flags to set.
__vValue to format and insert.
Returns:
Iterator after reading.

Definition at line 2059 of file locale_facets.h.

template<typename _CharT , typename _InIter >
iter_type std::num_get< _CharT, _InIter >::get ( iter_type  __in,
iter_type  __end,
ios_base __io,
ios_base::iostate __err,
double &  __v 
) const
inline

Numeric parsing.

Parses the input stream into the integral variable v. It does so by calling num_get::do_get().

The input characters are parsed like the scanf g specifier. The matching type length modifier is also used.

The decimal point character used is numpunct::decimal_point(). Digit grouping is interpreted according to numpunct::grouping() and numpunct::thousands_sep(). If the pattern of digit groups isn't consistent, sets err to ios_base::failbit.

If parsing the string yields a valid value for v, v is set. Otherwise, sets err to ios_base::failbit and leaves v unaltered. Sets err to ios_base::eofbit if the stream is emptied.

Parameters:
__inStart of input stream.
__endEnd of input stream.
__ioSource of locale and flags.
__errError flags to set.
__vValue to format and insert.
Returns:
Iterator after reading.

Definition at line 2064 of file locale_facets.h.

template<typename _CharT , typename _InIter >
iter_type std::num_get< _CharT, _InIter >::get ( iter_type  __in,
iter_type  __end,
ios_base __io,
ios_base::iostate __err,
long double &  __v 
) const
inline

Numeric parsing.

Parses the input stream into the integral variable v. It does so by calling num_get::do_get().

The input characters are parsed like the scanf g specifier. The matching type length modifier is also used.

The decimal point character used is numpunct::decimal_point(). Digit grouping is interpreted according to numpunct::grouping() and numpunct::thousands_sep(). If the pattern of digit groups isn't consistent, sets err to ios_base::failbit.

If parsing the string yields a valid value for v, v is set. Otherwise, sets err to ios_base::failbit and leaves v unaltered. Sets err to ios_base::eofbit if the stream is emptied.

Parameters:
__inStart of input stream.
__endEnd of input stream.
__ioSource of locale and flags.
__errError flags to set.
__vValue to format and insert.
Returns:
Iterator after reading.

Definition at line 2069 of file locale_facets.h.

template<typename _CharT , typename _InIter >
iter_type std::num_get< _CharT, _InIter >::get ( iter_type  __in,
iter_type  __end,
ios_base __io,
ios_base::iostate __err,
void *&  __v 
) const
inline

Numeric parsing.

Parses the input stream into the pointer variable v. It does so by calling num_get::do_get().

The input characters are parsed like the scanf p specifier.

Digit grouping is interpreted according to numpunct::grouping() and numpunct::thousands_sep(). If the pattern of digit groups isn't consistent, sets err to ios_base::failbit.

Note that the digit grouping effect for pointers is a bit ambiguous in the standard and shouldn't be relied on. See DR 344.

If parsing the string yields a valid value for v, v is set. Otherwise, sets err to ios_base::failbit and leaves v unaltered. Sets err to ios_base::eofbit if the stream is emptied.

Parameters:
__inStart of input stream.
__endEnd of input stream.
__ioSource of locale and flags.
__errError flags to set.
__vValue to format and insert.
Returns:
Iterator after reading.

Definition at line 2101 of file locale_facets.h.


Member Data Documentation

template<typename _CharT , typename _InIter >
locale::id std::num_get< _CharT, _InIter >::id
static

Numpunct facet id.

Definition at line 1928 of file locale_facets.h.


The documentation for this class was generated from the following files: