#include <locale_facets.h>
Public Types | |
typedef CharT | char_type |
Public typedefs. | |
typedef basic_string < CharT > | string_type |
Public typedefs. | |
Public Member Functions | |
collate (size_t __refs=0) | |
Constructor performs initialization. | |
collate (c_locale cloc, size_t __refs=0) | |
Internal constructor. Not for general use. | |
int | compare (const CharT *__lo1, const CharT *__hi1, const CharT *__lo2, const CharT *__hi2) const |
Compare two strings. | |
string_type | transform (const CharT *__lo, const CharT *__hi) const |
Transform string to comparable form. | |
long | hash (const CharT *__lo, const CharT *__hi) const |
Return hash of a string. | |
int | M_compare (const CharT *, const CharT *) const |
size_t | M_transform (CharT *, const CharT *, size_t) const |
Static Public Attributes | |
static locale::id | id |
Numpunct facet id. | |
Protected Member Functions | |
virtual | ~collate () |
Destructor. | |
virtual int | do_compare (const CharT *__lo1, const CharT *__hi1, const CharT *__lo2, const CharT *__hi2) const |
Compare two strings. | |
virtual string_type | do_transform (const CharT *__lo, const CharT *__hi) const |
Transform string to comparable form. | |
virtual long | do_hash (const CharT *__lo, const CharT *__hi) const |
Return hash of a string. | |
Static Protected Member Functions | |
static c_locale | S_get_c_locale () |
static const char * | S_get_c_name () |
Protected Attributes | |
c_locale | M_c_locale_collate |
Friends | |
class | locale::Impl |
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 2465 of file locale_facets.h.
typedef CharT std::collate< CharT >::char_type |
Public typedefs.
Reimplemented in std::collate_byname< CharT >.
Definition at line 2471 of file locale_facets.h.
typedef basic_string<CharT> std::collate< CharT >::string_type |
Public typedefs.
Reimplemented in std::collate_byname< CharT >.
Definition at line 2472 of file locale_facets.h.
std::collate< CharT >::collate | ( | size_t | __refs = 0 |
) | [inline, explicit] |
Constructor performs initialization.
This is the constructor provided by the standard.
refs | Passed to the base facet class. |
Definition at line 2492 of file locale_facets.h.
std::collate< CharT >::collate | ( | c_locale | cloc, | |
size_t | __refs = 0 | |||
) | [inline, explicit] |
Internal constructor. Not for general use.
This is a constructor for use by the library itself to set up new locales.
cloc | The "C" locale. | |
refs | Passed to the base facet class. |
Definition at line 2506 of file locale_facets.h.
virtual std::collate< CharT >::~collate | ( | ) | [inline, protected, virtual] |
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().
lo1 | Start of string 1. | |
hi1 | End of string 1. | |
lo2 | Start of string 2. | |
hi2 | End of string 2. |
Definition at line 2523 of file locale_facets.h.
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().
lo | Start of string. | |
hi | End of string. |
Definition at line 2542 of file locale_facets.h.
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().
lo | Start of string. | |
hi | End of string. |
Definition at line 2556 of file locale_facets.h.
int std::collate< CharT >::do_compare | ( | const CharT * | __lo1, | |
const CharT * | __hi1, | |||
const CharT * | __lo2, | |||
const CharT * | __hi2 | |||
) | const [inline, protected, virtual] |
Compare two strings.
This function is a hook for derived classes to change the value returned.
lo1 | Start of string 1. | |
hi1 | End of string 1. | |
lo2 | Start of string 2. | |
hi2 | End of string 2. |
Definition at line 2285 of file locale_facets.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().
collate< CharT >::string_type std::collate< CharT >::do_transform | ( | const CharT * | __lo, | |
const CharT * | __hi | |||
) | const [inline, protected, virtual] |
Transform string to comparable form.
This function is a hook for derived classes to change the value returned.
lo1 | Start of string 1. | |
hi1 | End of string 1. | |
lo2 | Start of string 2. | |
hi2 | End of string 2. |
Definition at line 2324 of file locale_facets.tcc.
References std::basic_string< CharT, Traits, Alloc >::append(), std::basic_string< CharT, Traits, Alloc >::c_str(), std::basic_string< CharT, Traits, Alloc >::data(), std::basic_string< CharT, Traits, Alloc >::length(), and std::basic_string< CharT, Traits, Alloc >::push_back().
long std::collate< CharT >::do_hash | ( | const CharT * | __lo, | |
const CharT * | __hi | |||
) | const [inline, protected, virtual] |
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.
lo | Start of string. | |
hi | End of string. |
Definition at line 2368 of file locale_facets.tcc.
References __gnu_cxx::__val.
locale::id std::collate< CharT >::id [inline, static] |