std::codecvt::unshift, std::codecvt::do_unshift

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C++

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Concepts

Bibliothèque d'utilitaires

Bibliothèque pour les chaînes de caractères

Bibliothèque de conteneurs

Bibliothèque d'algorithmes

Bibliothèque d'itérateurs

Bibliothèque pour le calcul numérique

Bibliothèque pour les entrées/sorties

Bibliothèque pour la régionalisation

Bibliothèque pour les expressions régulières (C++11)

Bibliothèque pour les opérations atomiques (C++11)

Bibliothèque pour les processus légers (threads) (C++11)

 

Bibliothèque localisations

Locales et facettes Original: Locales and facets The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
locale
use_facet	has_facet
Classification des caractères Original: Character classification The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
isspace isblank (C++11) iscntrl isupper islower isalpha	isdigit ispunct isxdigit isalnum isprint isgraph
Conversions Original: Conversions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
toupper tolower	wstring_convert (C++11) wbuffer_convert (C++11)
Classes de facettes catégorie de base Original: Facet category base classes The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
ctype_base codecvt_base messages_base	time_base money_base
Catégories de facettes Original: Facet categories The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
ctype ctype<char> codecvt collate messages time_get time_put	num_get num_put numpunct money_get money_put moneypunct
Spécifique aux paramètres régionaux facettes Original: Locale-specific facets The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
ctype_byname ctype_byname<char> codecvt_byname messages_byname collate_byname	time_get_byname time_put_byname numpunct_byname moneypunct_byname
Facettes de conversion de code Original: Code conversion facets The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
codecvt_utf8 (C++11) codecvt_utf16 (C++11)	codecvt_utf8_utf16 (C++11) codecvt_mode (C++11)
C locale Original: C locale The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
setlocale localeconv lconv	LC_ALL LC_COLLATE LC_CTYPE LC_MONETARY LC_NUMERIC LC_TIME

 

std::codecvt

Les fonctions membres Original: Member functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

codecvt::codecvt

codecvt::~codecvt

codecvt::out codecvt::do_out

codecvt::in codecvt::do_in

codecvt::unshift codecvt::do_unshift

codecvt::encoding codecvt::do_encoding

codecvt::always_noconv codecvt::do_always_noconv

codecvt::length codecvt::do_length

codecvt::max_length codecvt::do_max_length

 

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Déclaré dans l'en-tête <locale>
public: result unshift( stateT& state, externT* to, externT* to_end, externT*& to_next) const	(1)
protected: result do_unshift( stateT& state, externT* to, externT* to_end, externT*& to_next) const	(2)

1)

fonction de membre du public, appelle le do_unshift fonction membre de la classe la plus dérivée .

Original:

public member function, calls the member function do_unshift of the most derived class.

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2)

si le codage représenté par cette facette codecvt est dépendant de l'état, et state représente un état de conversion qui n'est pas l'état de décalage initial, écrire les caractères nécessaires pour revenir à l'état initial. Les caractères sont écrits sur un tableau de caractères dont le premier élément est pointé par to. Pas plus que les caractères sont écrits to_end-to. Le to_next paramètre est mis à jour pour pointer un passé le dernier caractère écrit .

Original:

if the encoding represented by this codecvt facet is state-dependent, and state represents a conversion state that is not the initial shift state, writes the characters necessary to return to the initial shift state. The characters are written to a character array whose first element is pointed to by to. No more than to_end-to characters are written. The parameter to_next is updated to point one past the last character written.

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Retourne la valeur

Une valeur de std::codecvt_base::result type, qui indique l'état de réussite comme suit:

Original:

A value of type std::codecvt_base::result, indicating the success status as follows:

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ok	tous les caractères nécessaires ont été écrites. state représente désormais état initial Original: all necessary characters were written. state now represents initial shift state The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
partial	pas assez d'espace dans la mémoire tampon de sortie. to_next == to_end Original: not enough space in the output buffer. to_next == to_end The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
error	erreur non spécifiée s'est produite Original: unspecified error occurred The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
noconv	l'encodage n'est pas dépendant de l'état, aucune séquence de terminaison nécessaire Original: the encoding is not state-dependent, no termination sequence necessary The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

La spécialisation non-conversion std::codecvt<char, char, std::mbstate_t> renvoie toujours std::codecvt_base::noconv

Original:

The non-converting specialization std::codecvt<char, char, std::mbstate_t> always returns std::codecvt_base::noconv

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Notes

Cette fonction est appelée par std::basic_filebuf::close() et dans d'autres situations lors de la finalisation d'une séquence multi-octets dépendant de l'état caractère .

Original:

This function is called by std::basic_filebuf::close() and in other situations when finalizing a state-dependent multibyte character sequence.

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Voir aussi

wcrtomb	convertit le caractère large de sa représentation multi-octets, état donné Original: converts a wide character to its multibyte representation, given state The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (fonction)
do_out [ virtuel Original: virtual The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. ]	convertit une chaîne de Internt à Externt, comme lors de l'écriture dans un fichier Original: converts a string from internT to externT, such as when writing to file The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (fonction membre virtuelle protégée)