#include <locale_facets.h>
Inheritance diagram for std::collate< CharT >:
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. | |
Static Public Attributes | |
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. |
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 2469 of file locale_facets.h.
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Public typedefs. Definition at line 2475 of file locale_facets.h. |
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Public typedefs. Definition at line 2476 of file locale_facets.h. Referenced by std::collate< CharT >::do_compare(), and std::collate< CharT >::do_transform(). |
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Constructor performs initialization. This is the constructor provided by the standard.
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Internal constructor. Not for general use. This is a constructor for use by the library itself to set up new locales.
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Destructor. Definition at line 2573 of file locale_facets.h. |
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Compare two strings. This function compares two strings and returns the result by calling collate::do_compare().
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Compare two strings. This function is a hook for derived classes to change the value returned.
References std::collate< CharT >::string_type. |
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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.
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Transform string to comparable form. This function is a hook for derived classes to change the value returned.
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(), std::basic_string< CharT, Traits, Alloc >::push_back(), and std::collate< CharT >::string_type. |
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Return hash of a string. This function computes and returns a hash on the input string. It does so by returning collate::do_hash().
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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().
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Numpunct facet id. Definition at line 2622 of file locale_facets.h. |