Inheritance diagram for std::collate< _CharT >:

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Public Types

typedef _CharT	char_type

typedef basic_string< _CharT >	string_type

Public Member Functions
	collate (size_t __refs=0)

	collate (__c_locale __cloc, size_t __refs=0)

int	_M_compare (const _CharT , const _CharT ) const throw ()

template<>
int	_M_compare (const char , const char ) const throw()

template<>
int	_M_compare (const wchar_t , const wchar_t ) const throw()

size_t	_M_transform (_CharT , const _CharT , size_t) const throw ()

template<>
size_t	_M_transform (char , const char , size_t) const throw()

template<>
size_t	_M_transform (wchar_t , const wchar_t , size_t) const throw()

int	compare (const _CharT __lo1, const _CharT __hi1, const _CharT __lo2, const _CharT __hi2) const

long	hash (const _CharT __lo, const _CharT __hi) const

string_type	transform (const _CharT __lo, const _CharT __hi) const

Static Public Attributes
static locale::id	id

Protected Member Functions
virtual	~collate ()

virtual int	do_compare (const _CharT __lo1, const _CharT __hi1, const _CharT __lo2, const _CharT __hi2) const

virtual long	do_hash (const _CharT __lo, const _CharT __hi) const

virtual string_type	do_transform (const _CharT __lo, const _CharT __hi) 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
__c_locale	_M_c_locale_collate

Detailed Description

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

Facet for localized string comparison.

This facet encapsulates the code to compare strings in a localized manner.

The collate 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 collate facet.

Definition at line 642 of file locale_classes.h.

Member Typedef Documentation

◆ char_type

template<typename _CharT>

typedef _CharT std::collate< _CharT >::char_type

Public typedefs.

Definition at line 648 of file locale_classes.h.

◆ string_type

template<typename _CharT>

typedef basic_string<_CharT> std::collate< _CharT >::string_type

Public typedefs.

Definition at line 649 of file locale_classes.h.

Constructor & Destructor Documentation

◆ collate() [1/2]

template<typename _CharT>

std::collate< _CharT >::collate ( size_t __refs = 0 )

inlineexplicit

Constructor performs initialization.

This is the constructor provided by the standard.

Parameters

__refs Passed to the base facet class.

Definition at line 669 of file locale_classes.h.

◆ collate() [2/2]

template<typename _CharT>

std::collate< _CharT >::collate	(	__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

__cloc	The C locale.
__refs	Passed to the base facet class.

Definition at line 683 of file locale_classes.h.

◆ ~collate()

template<typename _CharT>

virtual std::collate< _CharT >::~collate ( )

inlineprotectedvirtual

Destructor.

Definition at line 746 of file locale_classes.h.

Member Function Documentation

◆ compare()

template<typename _CharT>

int std::collate< _CharT >::compare	(	const _CharT *	__lo1,
		const _CharT *	__hi1,
		const _CharT *	__lo2,
		const _CharT *	__hi2
	)		const

inline

Compare two strings.

This function compares two strings and returns the result by calling collate::do_compare().

Parameters

__lo1	Start of string 1.
__hi1	End of string 1.
__lo2	Start of string 2.
__hi2	End of string 2.

Returns: 1 if string1 > string2, -1 if string1 < string2, else 0.

Definition at line 700 of file locale_classes.h.

◆ do_compare()

template<typename _CharT>

int std::collate< _CharT >::do_compare	(	const _CharT *	__lo1,
		const _CharT *	__hi1,
		const _CharT *	__lo2,
		const _CharT *	__hi2
	)		const

protectedvirtual

Compare two strings.

This function is a hook for derived classes to change the value returned.

See also: compare().

Parameters

__lo1	Start of string 1.
__hi1	End of string 1.
__lo2	Start of string 2.
__hi2	End of string 2.

Returns: 1 if string1 > string2, -1 if string1 < string2, else 0.

Definition at line 161 of file locale_classes.tcc.

References std::basic_string< _CharT, _Traits, _Alloc >::c_str(), std::basic_string< _CharT, _Traits, _Alloc >::data(), and std::basic_string< _CharT, _Traits, _Alloc >::length().

◆ do_hash()

template<typename _CharT>

long std::collate< _CharT >::do_hash	(	const _CharT *	__lo,
		const _CharT *	__hi
	)		const

protectedvirtual

Return hash of a string.

This function computes and returns a hash on the input string. This function is a hook for derived classes to change the value returned.

Parameters

__lo	Start of string.
__hi	End of string.

Returns: Hash value.

Definition at line 256 of file locale_classes.tcc.

◆ do_transform()

template<typename _CharT>

collate< _CharT >::string_type std::collate< _CharT >::do_transform	(	const _CharT *	__lo,
		const _CharT *	__hi
	)		const

protectedvirtual

Transform string to comparable form.

This function is a hook for derived classes to change the value returned.

Parameters

__lo	Start.
__hi	End.

Returns: transformed string.

Definition at line 200 of file locale_classes.tcc.

References std::basic_string< _CharT, _Traits, _Alloc >::c_str(), std::basic_string< _CharT, _Traits, _Alloc >::data(), and std::basic_string< _CharT, _Traits, _Alloc >::length().

◆ hash()

template<typename _CharT>

long std::collate< _CharT >::hash	(	const _CharT *	__lo,
		const _CharT *	__hi
	)		const

inline

Return hash of a string.

This function computes and returns a hash on the input string. It does so by returning collate::do_hash().

Parameters

__lo	Start of string.
__hi	End of string.

Returns: Hash value.

Definition at line 733 of file locale_classes.h.

◆ transform()

template<typename _CharT>

string_type std::collate< _CharT >::transform	(	const _CharT *	__lo,
		const _CharT *	__hi
	)		const

inline

Transform string to comparable form.

This function is a wrapper for strxfrm functionality. It takes the input string and returns a modified string that can be directly compared to other transformed strings. In the C locale, this function just returns a copy of the input string. In some other locales, it may replace two chars with one, change a char for another, etc. It does so by returning collate::do_transform().

Parameters

__lo	Start of string.
__hi	End of string.

Returns: Transformed string_type.

Definition at line 719 of file locale_classes.h.

Member Data Documentation

◆ id

template<typename _CharT>

locale::id std::collate< _CharT >::id

static

Numpunct facet id.

Definition at line 659 of file locale_classes.h.

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

Public Types

Public Member Functions

Static Public Attributes

Protected Member Functions

Static Protected Member Functions

Protected Attributes

Detailed Description

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

Member Typedef Documentation

◆ char_type

◆ string_type

Constructor & Destructor Documentation

◆ collate() [1/2]

◆ collate() [2/2]

◆ ~collate()

Member Function Documentation

◆ compare()

◆ do_compare()

◆ do_hash()

◆ do_transform()

◆ hash()

◆ transform()

Member Data Documentation

◆ id

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