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std::ctype_byname

NAME

std::ctype_byname - class ctype_byname [22.2.1.2].

SYNOPSIS

Inherits ctype< _CharT >.

Public Types

typedef const int * __to_type

typedef _CharT char_type

typedef __ctype_abstract_base< _CharT >::mask mask

Public Member Functions

template<> ctype_byname (const char *, size_t refs)

template<> ctype_byname (const char *, size_t refs)

ctype_byname (const char *__s, size_t __refs=0)

const char_type * is (const char_type *__lo, const char_type *__hi, mask *__vec) const

bool is (mask __m, char_type __c) const

const char_type * narrow (const char_type *__lo, const char_type *__hi, char __dfault, char *__to) const

char narrow (char_type __c, char __dfault) const

const char_type * scan_is (mask __m, const char_type *__lo, const char_type *__hi) const

const char_type * scan_not (mask __m, const char_type *__lo, const char_type *__hi) const

const char_type * tolower (char_type *__lo, const char_type *__hi) const

char_type tolower (char_type __c) const

const char_type * toupper (char_type *__lo, const char_type *__hi) const

char_type toupper (char_type __c) const

const char * widen (const char *__lo, const char *__hi, char_type *__to) const

char_type widen (char __c) const

Static Public Attributes

static const mask alnum

static const mask alpha

static const mask cntrl

static const mask digit

static const mask graph

static locale::id id

static const mask lower

static const mask print

static const mask punct

static const mask space

static const mask upper

static const mask xdigit

Protected Member Functions

virtual const char_type * do_is (const char_type *__lo, const char_type *__hi, mask *__vec) const

virtual bool do_is (mask __m, char_type __c) const

virtual const char_type * do_narrow (const char_type *__lo, const char_type *__hi, char __dfault, char *__dest) const

virtual char do_narrow (char_type, char __dfault) const

virtual const char_type * do_scan_is (mask __m, const char_type *__lo, const char_type *__hi) const

virtual const char_type * do_scan_not (mask __m, const char_type *__lo, const char_type *__hi) const

virtual const char_type * do_tolower (char_type *__lo, const char_type *__hi) const

virtual char_type do_tolower (char_type __c) const

virtual const char_type * do_toupper (char_type *__lo, const char_type *__hi) const

virtual char_type do_toupper (char_type __c) const

virtual const char * do_widen (const char *__lo, const char *__hi, char_type *__dest) const

virtual char_type do_widen (char __c) const

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> class std::ctype_byname< _CharT >

Definition at line 1510 of file locale_facets.h.

Member Typedef Documentation

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

Typedef for the template parameter.

Reimplemented from std::ctype< _CharT >.

Definition at line 1513 of file locale_facets.h.

Member Function Documentation

virtual const char_type* std::ctype< _CharT >::do_is (const char_type * __lo, const char_type * __hi, mask * __vec) const [protected, virtual, inherited]

Return a mask array.

This function finds the mask for each char_type in the range [lo,hi) and successively writes it to vec. vec must have as many elements as the input.

do_is() is a hook for a derived facet to change the behavior of classifying. do_is() must always return the same result for the same input.

Parameters:

lo Pointer to start of range.
hi Pointer to end of range.
vec Pointer to an array of mask storage.

Returns:

hi.

Implements std::__ctype_abstract_base< _CharT >.

virtual bool std::ctype< _CharT >::do_is (mask __m, char_type __c) const [protected, virtual, inherited]

Test char_type classification.

This function finds a mask M for c and compares it to mask m.

do_is() is a hook for a derived facet to change the behavior of classifying. do_is() must always return the same result for the same input.

Parameters:

c The char_type to find the mask of.
m The mask to compare against.

Returns:

(M & m) != 0.

Implements std::__ctype_abstract_base< _CharT >.

virtual const char_type* std::ctype< _CharT >::do_narrow (const char_type * __lo, const char_type * __hi, char __dfault, char * __dest) const [protected, virtual, inherited]

Narrow char_type array to char.

This virtual function converts each char_type in the range [lo,hi) to char using the simplest reasonable transformation and writes the results to the destination array. For any element in the input that cannot be converted, dfault is used instead.

do_narrow() is a hook for a derived facet to change the behavior of narrowing. do_narrow() must always return the same result for the same input.

Note: this is not what you want for codepage conversions. See codecvt for that.

Parameters:

lo Pointer to start of range.
hi Pointer to end of range.
dfault Char to use if conversion fails.
to Pointer to the destination array.

Returns:

hi.

Implements std::__ctype_abstract_base< _CharT >.

virtual char std::ctype< _CharT >::do_narrow (char_type, char __dfault) const [protected, virtual, inherited]

Narrow char_type to char.

This virtual function converts the argument to char using the simplest reasonable transformation. If the conversion fails, dfault is returned instead.

do_narrow() is a hook for a derived facet to change the behavior of narrowing. do_narrow() must always return the same result for the same input.

Note: this is not what you want for codepage conversions. See codecvt for that.

Parameters:

c The char_type to convert.
dfault Char to return if conversion fails.

Returns:

The converted char.

Implements std::__ctype_abstract_base< _CharT >.

virtual const char_type* std::ctype< _CharT >::do_scan_is (mask __m, const char_type * __lo, const char_type * __hi) const [protected, virtual, inherited]

Find char_type matching mask.

This function searches for and returns the first char_type c in [lo,hi) for which is(m,c) is true.

do_scan_is() is a hook for a derived facet to change the behavior of match searching. do_is() must always return the same result for the same input.

Parameters:

m The mask to compare against.
lo Pointer to start of range.
hi Pointer to end of range.

Returns:

Pointer to a matching char_type if found, else hi.

Implements std::__ctype_abstract_base< _CharT >.

virtual const char_type* std::ctype< _CharT >::do_scan_not (mask __m, const char_type * __lo, const char_type * __hi) const [protected, virtual, inherited]

Find char_type not matching mask.

This function searches for and returns a pointer to the first char_type c of [lo,hi) for which is(m,c) is false.

do_scan_is() is a hook for a derived facet to change the behavior of match searching. do_is() must always return the same result for the same input.

Parameters:

m The mask to compare against.
lo Pointer to start of range.
hi Pointer to end of range.

Returns:

Pointer to a non-matching char_type if found, else hi.

Implements std::__ctype_abstract_base< _CharT >.

virtual const char_type* std::ctype< _CharT >::do_tolower (char_type * __lo, const char_type * __hi) const [protected, virtual, inherited]

Convert array to lowercase.

This virtual function converts each char_type in the range [lo,hi) to lowercase if possible. Other elements remain untouched.

do_tolower() is a hook for a derived facet to change the behavior of lowercasing. do_tolower() must always return the same result for the same input.

Parameters:

lo Pointer to start of range.
hi Pointer to end of range.

Returns:

hi.

Implements std::__ctype_abstract_base< _CharT >.

virtual char_type std::ctype< _CharT >::do_tolower (char_type) const [protected, virtual, inherited]

Convert to lowercase.

This virtual function converts the argument to lowercase if possible. If not possible (for example, '2'), returns the argument.

do_tolower() is a hook for a derived facet to change the behavior of lowercasing. do_tolower() must always return the same result for the same input.

Parameters:

c The char_type to convert.

Returns:

The lowercase char_type if convertible, else c.

Implements std::__ctype_abstract_base< _CharT >.

virtual const char_type* std::ctype< _CharT >::do_toupper (char_type * __lo, const char_type * __hi) const [protected, virtual, inherited]

Convert array to uppercase.

This virtual function converts each char_type in the range [lo,hi) to uppercase if possible. Other elements remain untouched.

do_toupper() is a hook for a derived facet to change the behavior of uppercasing. do_toupper() must always return the same result for the same input.

Parameters:

lo Pointer to start of range.
hi Pointer to end of range.

Returns:

hi.

Implements std::__ctype_abstract_base< _CharT >.

virtual char_type std::ctype< _CharT >::do_toupper (char_type) const [protected, virtual, inherited]

Convert to uppercase.

This virtual function converts the char_type argument to uppercase if possible. If not possible (for example, '2'), returns the argument.

do_toupper() is a hook for a derived facet to change the behavior of uppercasing. do_toupper() must always return the same result for the same input.

Parameters:

c The char_type to convert.

Returns:

The uppercase char_type if convertible, else c.

Implements std::__ctype_abstract_base< _CharT >.

virtual const char* std::ctype< _CharT >::do_widen (const char * __lo, const char * __hi, char_type * __dest) const [protected, virtual, inherited]

Widen char array.

This function converts each char in the input to char_type using the simplest reasonable transformation.

do_widen() is a hook for a derived facet to change the behavior of widening. do_widen() must always return the same result for the same input.

Note: this is not what you want for codepage conversions. See codecvt for that.

Parameters:

lo Pointer to start range.
hi Pointer to end of range.
to Pointer to the destination array.

Returns:

hi.

Implements std::__ctype_abstract_base< _CharT >.

virtual char_type std::ctype< _CharT >::do_widen (char) const [protected, virtual, inherited]

Widen char.

This virtual function converts the char to char_type using the simplest reasonable transformation.

do_widen() is a hook for a derived facet to change the behavior of widening. do_widen() must always return the same result for the same input.

Note: this is not what you want for codepage conversions. See codecvt for that.

Parameters:

c The char to convert.

Returns:

The converted char_type

Implements std::__ctype_abstract_base< _CharT >.

const char_type* std::__ctype_abstract_base< _CharT >::is (const char_type * __lo, const char_type * __hi, mask * __vec) const [inline, inherited]

Return a mask array.

This function finds the mask for each char_type in the range [lo,hi) and successively writes it to vec. vec must have as many elements as the char array. It does so by returning the value of ctype<char_type>::do_is().

Parameters:

lo Pointer to start of range.
hi Pointer to end of range.
vec Pointer to an array of mask storage.

Returns:

hi.

Definition at line 181 of file locale_facets.h.

bool std::__ctype_abstract_base< _CharT >::is (mask __m, char_type __c) const [inline, inherited]

Test char_type classification.

This function finds a mask M for c and compares it to mask m. It does so by returning the value of ctype<char_type>::do_is().

Parameters:

c The char_type to compare the mask of.
m The mask to compare against.

Returns:

(M & m) != 0.

Definition at line 164 of file locale_facets.h.

const char_type* std::__ctype_abstract_base< _CharT >::narrow (const char_type * __lo, const char_type * __hi, char __dfault, char * __to) const [inline, inherited]

Narrow array to char array.

This function converts each char_type in the input to char using the simplest reasonable transformation and writes the results to the destination array. For any char_type in the input that cannot be converted, dfault is used instead. It does so by returning ctype<char_type>::do_narrow(lo, hi, dfault, to).

Note: this is not what you want for codepage conversions. See codecvt for that.

Parameters:

lo Pointer to start of range.
hi Pointer to end of range.
dfault Char to use if conversion fails.
to Pointer to the destination array.

Returns:

hi.

Definition at line 348 of file locale_facets.h.

char std::__ctype_abstract_base< _CharT >::narrow (char_type __c, char __dfault) const [inline, inherited]

Narrow char_type to char.

This function converts the char_type to char using the simplest reasonable transformation. If the conversion fails, dfault is returned instead. It does so by returning ctype<char_type>::do_narrow(c).

Note: this is not what you want for codepage conversions. See codecvt for that.

Parameters:

c The char_type to convert.
dfault Char to return if conversion fails.

Returns:

The converted char.

Definition at line 326 of file locale_facets.h.

const char_type* std::__ctype_abstract_base< _CharT >::scan_is (mask __m, const char_type * __lo, const char_type * __hi) const [inline, inherited]

Find char_type matching a mask.

This function searches for and returns the first char_type c in [lo,hi) for which is(m,c) is true. It does so by returning ctype<char_type>::do_scan_is().

Parameters:

m The mask to compare against.
lo Pointer to start of range.
hi Pointer to end of range.

Returns:

Pointer to matching char_type if found, else hi.

Definition at line 197 of file locale_facets.h.

const char_type* std::__ctype_abstract_base< _CharT >::scan_not (mask __m, const char_type * __lo, const char_type * __hi) const [inline, inherited]

Find char_type not matching a mask.

This function searches for and returns the first char_type c in [lo,hi) for which is(m,c) is false. It does so by returning ctype<char_type>::do_scan_not().

Parameters:

m The mask to compare against.
lo Pointer to first char in range.
hi Pointer to end of range.

Returns:

Pointer to non-matching char if found, else hi.

Definition at line 213 of file locale_facets.h.

const char_type* std::__ctype_abstract_base< _CharT >::tolower (char_type * __lo, const char_type * __hi) const [inline, inherited]

Convert array to lowercase.

This function converts each char_type in the range [lo,hi) to lowercase if possible. Other elements remain untouched. It does so by returning ctype<char_type>:: do_tolower(lo, hi).

Parameters:

lo Pointer to start of range.
hi Pointer to end of range.

Returns:

hi.

Definition at line 271 of file locale_facets.h.

char_type std::__ctype_abstract_base< _CharT >::tolower (char_type __c) const [inline, inherited]

Convert to lowercase.

This function converts the argument to lowercase if possible. If not possible (for example, '2'), returns the argument. It does so by returning ctype<char_type>::do_tolower(c).

Parameters:

c The char_type to convert.

Returns:

The lowercase char_type if convertible, else c.

Definition at line 256 of file locale_facets.h.

const char_type* std::__ctype_abstract_base< _CharT >::toupper (char_type * __lo, const char_type * __hi) const [inline, inherited]

Convert array to uppercase.

This function converts each char_type in the range [lo,hi) to uppercase if possible. Other elements remain untouched. It does so by returning ctype<char_type>:: do_toupper(lo, hi).

Parameters:

lo Pointer to start of range.
hi Pointer to end of range.

Returns:

hi.

Definition at line 242 of file locale_facets.h.

char_type std::__ctype_abstract_base< _CharT >::toupper (char_type __c) const [inline, inherited]

Convert to uppercase.

This function converts the argument to uppercase if possible. If not possible (for example, '2'), returns the argument. It does so by returning ctype<char_type>::do_toupper().

Parameters:

c The char_type to convert.

Returns:

The uppercase char_type if convertible, else c.

Definition at line 227 of file locale_facets.h.

const char* std::__ctype_abstract_base< _CharT >::widen (const char * __lo, const char * __hi, char_type * __to) const [inline, inherited]

Widen array to char_type.

This function converts each char in the input to char_type using the simplest reasonable transformation. It does so by returning ctype<char_type>::do_widen(c).

Note: this is not what you want for codepage conversions. See codecvt for that.

Parameters:

lo Pointer to start of range.
hi Pointer to end of range.
to Pointer to the destination array.

Returns:

hi.

Definition at line 307 of file locale_facets.h.

char_type std::__ctype_abstract_base< _CharT >::widen (char __c) const [inline, inherited]

Widen char to char_type.

This function converts the char argument to char_type using the simplest reasonable transformation. It does so by returning ctype<char_type>::do_widen(c).

Note: this is not what you want for codepage conversions. See codecvt for that.

Parameters:

c The char to convert.

Returns:

The converted char_type.

Definition at line 288 of file locale_facets.h.

Member Data Documentation

locale::id std::ctype< _CharT >::id [static, inherited]

The facet id for ctype<char_type>.

Definition at line 615 of file locale_facets.h.

Author

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