libstdc++
std::numpunct< _CharT > Class Template Reference
Inheritance diagram for std::numpunct< _CharT >:
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Public Types

typedef __numpunct_cache< _CharT > __cache_type
 
typedef _CharT char_type
 
typedef basic_string< _CharT > string_type
 

Public Member Functions

 numpunct (size_t __refs=0)
 
 numpunct (__cache_type *__cache, size_t __refs=0)
 
 numpunct (__c_locale __cloc, size_t __refs=0)
 
char_type decimal_point () const
 
string_type falsename () const
 
string grouping () const
 
char_type thousands_sep () const
 
string_type truename () const
 

Static Public Attributes

static locale::id id
 

Protected Member Functions

virtual ~numpunct ()
 
void _M_initialize_numpunct (__c_locale __cloc=0)
 
template<>
void _M_initialize_numpunct (__c_locale __cloc)
 
template<>
void _M_initialize_numpunct (__c_locale __cloc)
 
virtual char_type do_decimal_point () const
 
virtual string_type do_falsename () const
 
virtual string do_grouping () const
 
virtual char_type do_thousands_sep () const
 
virtual string_type do_truename () 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)
 

Protected Attributes

__cache_type * _M_data
 

Detailed Description

template<typename _CharT>
class std::numpunct< _CharT >

Primary class template numpunct.

This facet stores several pieces of information related to printing and scanning numbers, such as the decimal point character. It takes a template parameter specifying the char type. The numpunct facet is used by streams for many I/O operations involving numbers.

The numpunct 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 a numpunct facet.

Definition at line 1666 of file locale_facets.h.

Member Typedef Documentation

template<typename _CharT >
typedef _CharT std::numpunct< _CharT >::char_type

Public typedefs.

Definition at line 1672 of file locale_facets.h.

template<typename _CharT >
typedef basic_string<_CharT> std::numpunct< _CharT >::string_type

Public typedefs.

Definition at line 1673 of file locale_facets.h.

Constructor & Destructor Documentation

template<typename _CharT >
std::numpunct< _CharT >::numpunct ( size_t  __refs = 0)
inlineexplicit

Numpunct constructor.

Parameters
__refsRefcount to pass to the base class.

Definition at line 1690 of file locale_facets.h.

template<typename _CharT >
std::numpunct< _CharT >::numpunct ( __cache_type *  __cache,
size_t  __refs = 0 
)
inlineexplicit

Internal constructor. Not for general use.

This is a constructor for use by the library itself to set up the predefined locale facets.

Parameters
__cache__numpunct_cache object.
__refsRefcount to pass to the base class.

Definition at line 1704 of file locale_facets.h.

template<typename _CharT >
std::numpunct< _CharT >::numpunct ( __c_locale  __cloc,
size_t  __refs = 0 
)
inlineexplicit

Internal constructor. Not for general use.

This is a constructor for use by the library itself to set up new locales.

Parameters
__clocThe C locale.
__refsRefcount to pass to the base class.

Definition at line 1718 of file locale_facets.h.

template<typename _CharT >
virtual std::numpunct< _CharT >::~numpunct ( )
protectedvirtual

Destructor.

Referenced by std::numpunct< _CharT >::do_falsename().

Member Function Documentation

template<typename _CharT >
char_type std::numpunct< _CharT >::decimal_point ( ) const
inline

Return decimal point character.

This function returns a char_type to use as a decimal point. It does so by returning returning numpunct<char_type>::do_decimal_point().

Returns
char_type representing a decimal point.

Definition at line 1732 of file locale_facets.h.

template<typename _CharT >
virtual char_type std::numpunct< _CharT >::do_decimal_point ( ) const
inlineprotectedvirtual

Return decimal point character.

Returns a char_type to use as a decimal point. This function is a hook for derived classes to change the value returned.

Returns
char_type representing a decimal point.

Definition at line 1819 of file locale_facets.h.

template<typename _CharT >
virtual string_type std::numpunct< _CharT >::do_falsename ( ) const
inlineprotectedvirtual

Return string representation of bool false.

Returns a string_type containing the text representation for false bool variables. This function is a hook for derived classes to change the value returned.

Returns
string_type representing printed form of false.

Definition at line 1870 of file locale_facets.h.

References std::numpunct< _CharT >::~numpunct().

template<typename _CharT >
virtual string std::numpunct< _CharT >::do_grouping ( ) const
inlineprotectedvirtual

Return grouping specification.

Returns a string representing groupings for the integer part of a number. This function is a hook for derived classes to change the value returned.

See also
grouping() for details.
Returns
String representing grouping specification.

Definition at line 1844 of file locale_facets.h.

template<typename _CharT >
virtual char_type std::numpunct< _CharT >::do_thousands_sep ( ) const
inlineprotectedvirtual

Return thousands separator character.

Returns a char_type to use as a thousands separator. This function is a hook for derived classes to change the value returned.

Returns
char_type representing a thousands separator.

Definition at line 1831 of file locale_facets.h.

template<typename _CharT >
virtual string_type std::numpunct< _CharT >::do_truename ( ) const
inlineprotectedvirtual

Return string representation of bool true.

Returns a string_type containing the text representation for true bool variables. This function is a hook for derived classes to change the value returned.

Returns
string_type representing printed form of true.

Definition at line 1857 of file locale_facets.h.

template<typename _CharT >
string_type std::numpunct< _CharT >::falsename ( ) const
inline

Return string representation of bool false.

This function returns a string_type containing the text representation for false bool variables. It does so by calling numpunct<char_type>::do_falsename().

Returns
string_type representing printed form of false.

Definition at line 1802 of file locale_facets.h.

template<typename _CharT >
string std::numpunct< _CharT >::grouping ( ) const
inline

Return grouping specification.

This function returns a string representing groupings for the integer part of a number. Groupings indicate where thousands separators should be inserted in the integer part of a number.

Each char in the return string is interpret as an integer rather than a character. These numbers represent the number of digits in a group. The first char in the string represents the number of digits in the least significant group. If a char is negative, it indicates an unlimited number of digits for the group. If more chars from the string are required to group a number, the last char is used repeatedly.

For example, if the grouping() returns "\003\002" and is applied to the number 123456789, this corresponds to 12,34,56,789. Note that if the string was "32", this would put more than 50 digits into the least significant group if the character set is ASCII.

The string is returned by calling numpunct<char_type>::do_grouping().

Returns
string representing grouping specification.

Definition at line 1776 of file locale_facets.h.

template<typename _CharT >
char_type std::numpunct< _CharT >::thousands_sep ( ) const
inline

Return thousands separator character.

This function returns a char_type to use as a thousands separator. It does so by returning returning numpunct<char_type>::do_thousands_sep().

Returns
char_type representing a thousands separator.

Definition at line 1745 of file locale_facets.h.

template<typename _CharT >
string_type std::numpunct< _CharT >::truename ( ) const
inline

Return string representation of bool true.

This function returns a string_type containing the text representation for true bool variables. It does so by calling numpunct<char_type>::do_truename().

Returns
string_type representing printed form of true.

Definition at line 1789 of file locale_facets.h.

Member Data Documentation

template<typename _CharT >
locale::id std::numpunct< _CharT >::id
static

Numpunct facet id.

Definition at line 1682 of file locale_facets.h.


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