libstdc++
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Common base for ctype facet.
This template class provides implementations of the public functions that forward to the protected virtual functions.
This template also provides abstract stubs for the protected virtual functions.
Definition at line 145 of file locale_facets.h.
typedef _CharT std::__ctype_abstract_base< _CharT >::char_type |
Typedef for the template parameter.
Reimplemented in std::ctype< wchar_t >, and std::ctype< _CharT >.
Definition at line 150 of file locale_facets.h.
virtual bool std::__ctype_abstract_base< _CharT >::do_is | ( | mask | __m, |
char_type | __c | ||
) | const [protected, pure virtual] |
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.
__c | The char_type to find the mask of. |
__m | The mask to compare against. |
Implemented in std::ctype< wchar_t >, and std::ctype< _CharT >.
Referenced by std::__ctype_abstract_base< wchar_t >::is().
virtual const char_type* std::__ctype_abstract_base< _CharT >::do_is | ( | const char_type * | __lo, |
const char_type * | __hi, | ||
mask * | __vec | ||
) | const [protected, pure virtual] |
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.
__lo | Pointer to start of range. |
__hi | Pointer to end of range. |
__vec | Pointer to an array of mask storage. |
Implemented in std::ctype< wchar_t >, and std::ctype< _CharT >.
virtual char std::__ctype_abstract_base< _CharT >::do_narrow | ( | char_type | __c, |
char | __dfault | ||
) | const [protected, pure virtual] |
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.
__c | The char_type to convert. |
__dfault | Char to return if conversion fails. |
Implemented in std::ctype< wchar_t >, and std::ctype< _CharT >.
Referenced by std::__ctype_abstract_base< wchar_t >::narrow().
virtual const char_type* std::__ctype_abstract_base< _CharT >::do_narrow | ( | const char_type * | __lo, |
const char_type * | __hi, | ||
char | __dfault, | ||
char * | __to | ||
) | const [protected, pure virtual] |
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.
__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. |
Implemented in std::ctype< wchar_t >, and std::ctype< _CharT >.
virtual const char_type* std::__ctype_abstract_base< _CharT >::do_scan_is | ( | mask | __m, |
const char_type * | __lo, | ||
const char_type * | __hi | ||
) | const [protected, pure virtual] |
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.
__m | The mask to compare against. |
__lo | Pointer to start of range. |
__hi | Pointer to end of range. |
Implemented in std::ctype< wchar_t >, and std::ctype< _CharT >.
Referenced by std::__ctype_abstract_base< wchar_t >::scan_is().
virtual const char_type* std::__ctype_abstract_base< _CharT >::do_scan_not | ( | mask | __m, |
const char_type * | __lo, | ||
const char_type * | __hi | ||
) | const [protected, pure virtual] |
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.
__m | The mask to compare against. |
__lo | Pointer to start of range. |
__hi | Pointer to end of range. |
Implemented in std::ctype< wchar_t >, and std::ctype< _CharT >.
Referenced by std::__ctype_abstract_base< wchar_t >::scan_not().
virtual char_type std::__ctype_abstract_base< _CharT >::do_tolower | ( | char_type | __c | ) | const [protected, pure virtual] |
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.
__c | The char_type to convert. |
Implemented in std::ctype< wchar_t >, and std::ctype< _CharT >.
Referenced by std::__ctype_abstract_base< wchar_t >::tolower().
virtual const char_type* std::__ctype_abstract_base< _CharT >::do_tolower | ( | char_type * | __lo, |
const char_type * | __hi | ||
) | const [protected, pure virtual] |
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.
__lo | Pointer to start of range. |
__hi | Pointer to end of range. |
Implemented in std::ctype< wchar_t >, and std::ctype< _CharT >.
virtual char_type std::__ctype_abstract_base< _CharT >::do_toupper | ( | char_type | __c | ) | const [protected, pure virtual] |
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.
__c | The char_type to convert. |
Implemented in std::ctype< wchar_t >, and std::ctype< _CharT >.
Referenced by std::__ctype_abstract_base< wchar_t >::toupper().
virtual const char_type* std::__ctype_abstract_base< _CharT >::do_toupper | ( | char_type * | __lo, |
const char_type * | __hi | ||
) | const [protected, pure virtual] |
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.
__lo | Pointer to start of range. |
__hi | Pointer to end of range. |
Implemented in std::ctype< wchar_t >, and std::ctype< _CharT >.
virtual char_type std::__ctype_abstract_base< _CharT >::do_widen | ( | char | __c | ) | const [protected, pure virtual] |
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.
__c | The char to convert. |
Implemented in std::ctype< wchar_t >, and std::ctype< _CharT >.
Referenced by std::__ctype_abstract_base< wchar_t >::widen().
virtual const char* std::__ctype_abstract_base< _CharT >::do_widen | ( | const char * | __lo, |
const char * | __hi, | ||
char_type * | __to | ||
) | const [protected, pure virtual] |
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.
__lo | Pointer to start range. |
__hi | Pointer to end of range. |
__to | Pointer to the destination array. |
Implemented in std::ctype< wchar_t >, and std::ctype< _CharT >.
bool std::__ctype_abstract_base< _CharT >::is | ( | mask | __m, |
char_type | __c | ||
) | const [inline] |
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().
__c | The char_type to compare the mask of. |
__m | The mask to compare against. |
Definition at line 164 of file locale_facets.h.
Referenced by std::regex_traits< _Ch_type >::isctype(), and std::basic_istream< _CharT, _Traits >::sentry::sentry().
const char_type* std::__ctype_abstract_base< _CharT >::is | ( | const char_type * | __lo, |
const char_type * | __hi, | ||
mask * | __vec | ||
) | const [inline] |
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().
__lo | Pointer to start of range. |
__hi | Pointer to end of range. |
__vec | Pointer to an array of mask storage. |
Definition at line 181 of file locale_facets.h.
char std::__ctype_abstract_base< _CharT >::narrow | ( | char_type | __c, |
char | __dfault | ||
) | const [inline] |
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.
__c | The char_type to convert. |
__dfault | Char to return if conversion fails. |
Definition at line 326 of file locale_facets.h.
Referenced by std::time_put< _CharT, _OutIter >::put().
const char_type* std::__ctype_abstract_base< _CharT >::narrow | ( | const char_type * | __lo, |
const char_type * | __hi, | ||
char | __dfault, | ||
char * | __to | ||
) | const [inline] |
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.
__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. |
Definition at line 348 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] |
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().
__m | The mask to compare against. |
__lo | Pointer to start of range. |
__hi | Pointer to end of range. |
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] |
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().
__m | The mask to compare against. |
__lo | Pointer to first char in range. |
__hi | Pointer to end of range. |
Definition at line 213 of file locale_facets.h.
char_type std::__ctype_abstract_base< _CharT >::tolower | ( | char_type | __c | ) | const [inline] |
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).
__c | The char_type to convert. |
Definition at line 256 of file locale_facets.h.
const char_type* std::__ctype_abstract_base< _CharT >::tolower | ( | char_type * | __lo, |
const char_type * | __hi | ||
) | const [inline] |
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).
__lo | Pointer to start of range. |
__hi | Pointer to end of range. |
Definition at line 271 of file locale_facets.h.
char_type std::__ctype_abstract_base< _CharT >::toupper | ( | char_type | __c | ) | const [inline] |
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().
__c | The char_type to convert. |
Definition at line 227 of file locale_facets.h.
const char_type* std::__ctype_abstract_base< _CharT >::toupper | ( | char_type * | __lo, |
const char_type * | __hi | ||
) | const [inline] |
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).
__lo | Pointer to start of range. |
__hi | Pointer to end of range. |
Definition at line 242 of file locale_facets.h.
char_type std::__ctype_abstract_base< _CharT >::widen | ( | char | __c | ) | const [inline] |
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.
__c | The char to convert. |
Definition at line 288 of file locale_facets.h.
Referenced by std::money_get< _CharT, _InIter >::do_get(), std::time_put< _CharT, _OutIter >::do_put(), std::money_put< _CharT, _OutIter >::do_put(), std::regex_traits< _Ch_type >::isctype(), std::tr2::operator<<(), and std::operator<<().
const char* std::__ctype_abstract_base< _CharT >::widen | ( | const char * | __lo, |
const char * | __hi, | ||
char_type * | __to | ||
) | const [inline] |
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.
__lo | Pointer to start of range. |
__hi | Pointer to end of range. |
__to | Pointer to the destination array. |
Definition at line 307 of file locale_facets.h.