std::basic_filebuf::seekpos

 

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)

 

D'entrée / sortie de bibliothèque

I / O manipulateurs

C-style I / O

Tampons Original: Buffers The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

basic_streambuf

basic_filebuf

basic_stringbuf

strstreambuf (obsolète)

Cours d'eau Original: Streams The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

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

ios_base

basic_ios

basic_istream

basic_ostream

basic_iostream

Fichier E / O Original: File I/O The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

basic_ifstream

basic_ofstream

basic_fstream

Chaîne I / O Original: String I/O The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

basic_istringstream

basic_ostringstream

basic_stringstream

Tableau I / O Original: Array I/O The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

istrstream (obsolète)

ostrstream (obsolète)

strstream (obsolète)

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

streamoff

streamsize

fpos

Interface catégorie d'erreur Original: Error category interface The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

iostream_category (C++11)

io_errc (C++11)

 

std::basic_filebuf

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

basic_filebuf::basic_filebuf

basic_filebuf::~basic_filebuf

basic_filebuf::operator= (C++11)

basic_filebuf::swap (C++11)

basic_filebuf::is_open

basic_filebuf::open

basic_filebuf::close

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

basic_filebuf::showmanyc

basic_filebuf::underflow

basic_filebuf::uflow

basic_filebuf::pbackfail

basic_filebuf::overflow

basic_filebuf::setbuf

basic_filebuf::seekoff

basic_filebuf::seekpos

basic_filebuf::sync

basic_filebuf::imbue

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

swap(std::basic_filebuf) (C++11)

 

protected: virtual pos_type seekpos( pos_type sp,                           std::ios_base::openmode which = std::ios_base::in | std::ios_base::out );

Repositionne le pointeur de fichier, si possible, à la position indiquée par sp .

Original:

Repositions the file pointer, if possible, to the position indicated by sp.

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Si le fichier associé n'est pas ouvert (is_open()==false), ne parvient pas immédiatement .

Original:

If the associated file is not open (is_open()==false), fails immediately.

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Si le fichier est ouvert en écriture, écrit d'abord la zone de mise et toutes les séquences unshift requis par la locale courante imprégnée, en utilisant overflow()

Original:

If the file is open for writing, first writes the put area and any unshift sequences required by the currently imbued locale, using overflow()

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Puis repositionne le pointeur de fichier, comme en appelant std::fseek

Original:

Then repositions the file pointer, as by calling std::fseek

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Si le fichier est ouvert en lecture, met à jour la zone obtenir si nécessaire .

Original:

If the file is open for reading, updates the get area if necessary.

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Si sp n'a pas été obtenu par seekoff() appel ou seekpos() sur le même fichier, le comportement est indéfini .

Original:

If sp was not obtained by calling seekoff() or seekpos() on the same file, the behavior is undefined.

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Paramètres

sp	-	position dans le fichier obtenu par seekoff() ou seekpos() appelé plus tôt sur le même fichier Original: file position obtained by seekoff() or seekpos() called earlier on the same file The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
which	-	qui définit de l'entrée et / ou de séquences de sortie à affecter. Il peut y avoir un ou une combinaison des constantes suivantes: Constante Original: Constant The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. Explanation in affecter la séquence d'entrée Original: affect the input sequence The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. out affecter la séquence de sortie Original: affect the output sequence The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. Original: defines which of the input and/or output sequences to affect. It can be one or a combination of the following constants: Constante Original: Constant The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. Explanation in affecter la séquence d'entrée Original: affect the input sequence The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. out affecter la séquence de sortie Original: affect the output sequence The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

Retourne la valeur

sp en cas de succès ou d'échec .. pos_type(off_type(-1)) sur

Original:

sp on success or pos_type(off_type(-1)) on failure.

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Notes

seekpos() est appelé par std::basic_streambuf::pubseekpos, qui est appelé par les versions mono-arguments de std::basic_istream::seekg et std::basic_ostream::seekp

Original:

seekpos() is called by std::basic_streambuf::pubseekpos, which is called by the single-argument versions of std::basic_istream::seekg and std::basic_ostream::seekp

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Voir aussi

pubseekpos	Invoque seekpos() Original: invokes seekpos() The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (fonction membre publique de std::basic_streambuf)
seekoff [ 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. ]	repositionne la position du fichier, en utilisant un adressage relatif Original: repositions the file position, using relative addressing 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)
fseek	déplace l'indicateur de position de fichier à un emplacement spécifique dans un fichier Original: moves the file position indicator to a specific location in a file The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (fonction)