libstdc++: std::ctype_byname< char > Class Reference (original) (raw)
#include <[locale_facets.h](a00596%5Fsource.html)>
| Public Types | |
|---|---|
| typedef const int * | __to_type |
| typedef char | char_type |
| typedef unsigned short | mask |
| Public Member Functions | |
|---|---|
| ctype_byname (const char *__s, size_t __refs=0) | |
| ctype_byname (const string &__s, size_t __refs=0) | |
| const char * | is (const char *__lo, const char *__hi, mask *__vec) const |
| bool | is (mask __m, char __c) const |
| char | narrow (char_type __c, char __dfault) const |
| const char_type * | narrow (const char_type *__lo, const char_type *__hi, char __dfault, char *__to) const |
| const char * | scan_is (mask __m, const char *__lo, const char *__hi) const |
| const char * | scan_not (mask __m, const char *__lo, const char *__hi) const |
| const mask * | table () const throw () |
| 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 |
| char_type | widen (char __c) const |
| const char * | widen (const char *__lo, const char *__hi, char_type *__to) const |
| Static Public Member Functions | |
|---|---|
| static const mask * | classic_table () throw () |
| Static Public Attributes | |
|---|---|
| static const mask | alnum |
| static const mask | alpha |
| static const mask | blank |
| static const mask | cntrl |
| static const mask | digit |
| static const mask | graph |
| static locale::id | id |
| static const mask | lower |
| static const mask | |
| static const mask | punct |
| static const mask | space |
| static const size_t | table_size |
| static const mask | upper |
| static const mask | xdigit |
| Protected Member Functions | |
|---|---|
| virtual char | do_narrow (char_type __c, char __dfault) const |
| virtual const char_type * | do_narrow (const char_type *__lo, const char_type *__hi, char __dfault, char *__to) 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 char_type | do_widen (char __c) const |
| virtual const char * | do_widen (const char *__lo, const char *__hi, char_type *__to) 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_ctype |
| bool | _M_del |
| char | _M_narrow [1+static_cast< unsigned char >(-1)] |
| char | _M_narrow_ok |
| const mask * | _M_table |
| __to_type | _M_tolower |
| __to_type | _M_toupper |
| char | _M_widen [1+static_cast< unsigned char >(-1)] |
| char | _M_widen_ok |
22.2.1.4 Class ctype_byname specializations.
Definition at line 1507 of file locale_facets.h.
◆ __to_type
| typedef const int* std::ctype_base::__to_type | inherited |
|---|
◆ char_type
◆ mask
| typedef unsigned short std::ctype_base::mask | inherited |
|---|
◆ classic_table()
| static const mask * std::ctype< char >::classic_table ( ) throw ( ) | staticinherited |
|---|
Returns a pointer to the C locale mask table.
◆ do_narrow() [1/2]
| virtual char std::ctype< char >::do_narrow ( char_type __c, char __dfault ) const | inlineprotectedvirtualinherited |
|---|
Narrow char.
This virtual function converts the char to char using the simplest reasonable transformation. If the conversion fails, dfault is returned instead. For an underived ctype facet, c will be returned unchanged.
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 to convert. |
|---|---|
| __dfault | Char to return if conversion fails. |
Returns
The converted char.
Definition at line 1142 of file locale_facets.h.
◆ do_narrow() [2/2]
Narrow char array to char array.
This virtual function converts each char in the range [lo,hi) to char using the simplest reasonable transformation and writes the results to the destination array. For any char in the input that cannot be converted, dfault is used instead. For an underived ctype facet, the argument will be copied unchanged.
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.
Definition at line 1168 of file locale_facets.h.
◆ do_tolower() [1/2]
Convert array to lowercase.
This virtual function converts each char in the range [lo,hi) to lowercase if possible. Other chars 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 first char in range. |
|---|---|
| __hi | Pointer to end of range. |
Returns
__hi.
◆ do_tolower() [2/2]
Convert to lowercase.
This virtual function converts the char 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
Returns
The lowercase char if convertible, else __c.
◆ do_toupper() [1/2]
Convert array to uppercase.
This virtual function converts each char in the range [lo,hi) to uppercase if possible. Other chars 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.
◆ do_toupper() [2/2]
Convert to uppercase.
This virtual function converts the char 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
Returns
The uppercase char if convertible, else __c.
◆ do_widen() [1/2]
| virtual char_type std::ctype< char >::do_widen ( char __c) const | inlineprotectedvirtualinherited |
|---|
Widen char.
This virtual function converts the char to char using the simplest reasonable transformation. For an underived ctype facet, the argument will be returned unchanged.
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
Returns
The converted character.
Definition at line 1092 of file locale_facets.h.
◆ do_widen() [2/2]
| virtual const char * std::ctype< char >::do_widen ( const char * __lo, const char * __hi, char_type * __to ) const | inlineprotectedvirtualinherited |
|---|
Widen char array.
This function converts each char in the range [lo,hi) to char using the simplest reasonable transformation. For an underived ctype facet, the argument will be copied unchanged.
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 of range. |
|---|---|
| __hi | Pointer to end of range. |
| __to | Pointer to the destination array. |
Returns
__hi.
Definition at line 1115 of file locale_facets.h.
◆ is() [1/2]
| const char * std::ctype< char >::is ( const char * __lo, const char * __hi, mask * __vec ) const | inlineinherited |
|---|
Return a mask array.
This function finds the mask for each char in the range [lo, hi) and successively writes it to vec. vec must have as many elements as the char array.
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 47 of file ctype_inline.h.
◆ is() [2/2]
| bool std::ctype< char >::is ( mask __m, char __c ) const | inlineinherited |
|---|
Test char classification.
This function compares the mask table[c] to __m.
Parameters
| __c | The char to compare the mask of. |
|---|---|
| __m | The mask to compare against. |
Returns
True if __m & table[__c] is true, false otherwise.
Definition at line 42 of file ctype_inline.h.
◆ narrow() [1/2]
Narrow char.
This function converts the char to char using the simplest reasonable transformation. If the conversion fails, dfault is returned instead. For an underived ctype facet, c will be returned unchanged.
This function works as if it returns ctype::do_narrow(c). 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 to convert. |
|---|---|
| __dfault | Char to return if conversion fails. |
Returns
The converted character.
Definition at line 939 of file locale_facets.h.
References std::ctype< _CharT >::do_narrow().
◆ narrow() [2/2]
Narrow char array.
This function converts each char in the input to char using the simplest reasonable transformation and writes the results to the destination array. For any char in the input that cannot be converted, dfault is used instead. For an underived ctype facet, the argument will be copied unchanged.
This function works as if it returns ctype::do_narrow(lo, hi, dfault, to). 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.
Definition at line 972 of file locale_facets.h.
References std::ctype< _CharT >::do_narrow().
◆ scan_is()
| const char * std::ctype< char >::scan_is ( mask __m, const char * __lo, const char * __hi ) const | inlineinherited |
|---|
Find char matching a mask.
This function searches for and returns the first char in [lo,hi) for which is(m,char) is true.
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 if found, else __hi.
Definition at line 56 of file ctype_inline.h.
◆ scan_not()
| const char * std::ctype< char >::scan_not ( mask __m, const char * __lo, const char * __hi ) const | inlineinherited |
|---|
Find char not matching a mask.
This function searches for and returns a pointer to the first char in [__lo,__hi) for which is(m,char) is false.
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 if found, else __hi.
Definition at line 66 of file ctype_inline.h.
◆ table()
| const mask * std::ctype< char >::table ( ) const throw ( ) | inlineinherited |
|---|
Returns a pointer to the mask table provided to the constructor, or the default from classic_table() if none was provided.
Definition at line 991 of file locale_facets.h.
◆ tolower() [1/2]
Convert array to lowercase.
This function converts each char in the range [lo,hi) to lowercase if possible. Other chars remain untouched.
tolower() acts as if it returns ctype:: do_tolower(__lo, __hi). do_tolower() must always return the same result for the same input.
Parameters
| __lo | Pointer to first char in range. |
|---|---|
| __hi | Pointer to end of range. |
Returns
__hi.
Definition at line 860 of file locale_facets.h.
References std::ctype< _CharT >::do_tolower().
◆ tolower() [2/2]
Convert to lowercase.
This function converts the char argument to lowercase if possible. If not possible (for example, '2'), returns the argument.
tolower() acts as if it returns ctype::do_tolower(__c). do_tolower() must always return the same result for the same input.
Parameters
Returns
The lowercase char if convertible, else __c.
Definition at line 843 of file locale_facets.h.
References std::ctype< _CharT >::do_tolower().
◆ toupper() [1/2]
Convert array to uppercase.
This function converts each char in the range [__lo,__hi) to uppercase if possible. Other chars remain untouched.
toupper() acts as if it returns ctype:: do_toupper(__lo, __hi). do_toupper() must always return the same result for the same input.
Parameters
| __lo | Pointer to first char in range. |
|---|---|
| __hi | Pointer to end of range. |
Returns
__hi.
Definition at line 827 of file locale_facets.h.
References std::ctype< _CharT >::do_toupper().
◆ toupper() [2/2]
Convert to uppercase.
This function converts the char argument to uppercase if possible. If not possible (for example, '2'), returns the argument.
toupper() acts as if it returns ctype::do_toupper(c). do_toupper() must always return the same result for the same input.
Parameters
Returns
The uppercase char if convertible, else __c.
Definition at line 810 of file locale_facets.h.
References std::ctype< _CharT >::do_toupper().
◆ widen() [1/2]
Widen char.
This function converts the char to char_type using the simplest reasonable transformation. For an underived ctype facet, the argument will be returned unchanged.
This function works as if it returns ctype::do_widen(c). 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
Returns
The converted character.
Definition at line 880 of file locale_facets.h.
References std::ctype< _CharT >::do_widen().
◆ widen() [2/2]
| const char * std::ctype< char >::widen ( const char * __lo, const char * __hi, char_type * __to ) const | inlineinherited |
|---|
Widen char array.
This function converts each char in the input to char using the simplest reasonable transformation. For an underived ctype facet, the argument will be copied unchanged.
This function works as if it returns ctype::do_widen(c). 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 first char in range. |
|---|---|
| __hi | Pointer to end of range. |
| __to | Pointer to the destination array. |
Returns
__hi.
Definition at line 907 of file locale_facets.h.
References std::ctype< _CharT >::do_widen().
◆ _M_c_locale_ctype
◆ _M_del
◆ _M_narrow
| char std::ctype< char >::_M_narrow[1+static_cast< unsigned char >(-1)] | mutableprotectedinherited |
|---|
◆ _M_narrow_ok
| | mutableprotectedinherited | | ---------------------------- |
◆ _M_table
◆ _M_tolower
◆ _M_toupper
◆ _M_widen
| char std::ctype< char >::_M_widen[1+static_cast< unsigned char >(-1)] | mutableprotectedinherited |
|---|
◆ _M_widen_ok
| | mutableprotectedinherited | | ---------------------------- |
◆ alnum
| const mask std::ctype_base::alnum | staticinherited |
|---|
◆ alpha
| const mask std::ctype_base::alpha | staticinherited |
|---|
◆ blank
| const mask std::ctype_base::blank | staticinherited |
|---|
◆ cntrl
| const mask std::ctype_base::cntrl | staticinherited |
|---|
◆ digit
| const mask std::ctype_base::digit | staticinherited |
|---|
◆ graph
| const mask std::ctype_base::graph | staticinherited |
|---|
◆ id
◆ lower
| const mask std::ctype_base::lower | staticinherited |
|---|
| const mask std::ctype_base::print | staticinherited |
|---|
◆ punct
| const mask std::ctype_base::punct | staticinherited |
|---|
◆ space
| const mask std::ctype_base::space | staticinherited |
|---|
◆ table_size
The size of the mask table. It is SCHAR_MAX + 1.
Definition at line 713 of file locale_facets.h.
◆ upper
| const mask std::ctype_base::upper | staticinherited |
|---|
◆ xdigit
| const mask std::ctype_base::xdigit | staticinherited |
|---|
The documentation for this class was generated from the following file: