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std::basic_filebuf

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< cpp‎ | io

 
 
D'entrée / sortie de bibliothèque
I / O manipulateurs
C-style I / O
Tampons
Original:
Buffers
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basic_streambuf
basic_filebuf
basic_stringbuf
strstreambuf (obsolète)
Cours d'eau
Original:
Streams
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Abstractions
Original:
Abstractions
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ios_base
basic_ios
basic_istream
basic_ostream
basic_iostream
Fichier E / O
Original:
File I/O
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basic_ifstream
basic_ofstream
basic_fstream
Chaîne I / O
Original:
String I/O
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basic_istringstream
basic_ostringstream
basic_stringstream
Tableau I / O
Original:
Array I/O
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istrstream (obsolète)
ostrstream (obsolète)
strstream (obsolète)
Types
Original:
Types
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streamoff
streamsize
fpos
Interface catégorie d'erreur
Original:
Error category interface
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iostream_category (C++11)
io_errc (C++11)
 
std::basic_filebuf
Fonctions membres publiques
Original:
Public member functions
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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
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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
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swap(std::basic_filebuf) (C++11)
 
Defined in header <fstream>
template<

    class charT,
    class Traits = std::char_traits<CharT>,
    class Allocator = std::allocator<CharT>

> class basic_filebuf : public std::basic_streambuf<CharT, Traits>
std::basic_filebuf est un std::basic_streambuf dont associée séquence de caractères est une image. À la fois la séquence d'entrée et la séquence de sortie sont associés à un même fichier, et une position de fichier joint est maintenu pendant les deux opérations .
Original:
std::basic_filebuf is a std::basic_streambuf whose associated character sequence is a file. Both the input sequence and the output sequence are associated with the same file, and a joint file position is maintained for both operations.
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La sous-verse fonctions () et de débordement () / sync () effectuent le même E / S entre le dossier et les zones GET et PUT de la mémoire tampon. Lorsque CharT n'est pas char, la plupart des implémentations stocker caractères multi-octets dans le fichier et une facette std::codecvt est utilisé pour effectuer la conversion de caractères larges / multi-octets .
Original:
The functions underflow() and overflow()/sync() perform the actual I/O between the file and the get and put areas of the buffer. When CharT is not char, most implementations store multibyte characters in the file and a std::codecvt facet is used to perform wide/multibyte character conversion.
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Deux spécialisations pour les types de caractères communs sont également définis:
Original:
Two specializations for common character types are also defined:
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Defined in header <streambuf>
Type d'
Original:
Type
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Definition
filebuf basic_filebuf<char>
wfilebuf basic_filebuf<wchar_t>

Sommaire

[modifier] Types de membres

Type du membre Définition
char_type CharT[edit]
traits_type Traits[edit]
int_type Traits::int_type[edit]
pos_type
Traits::pos_type qui doit être std::fpos<Traits::state_type>
Original:
Traits::pos_type which is required to be std::fpos<Traits::state_type>
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off_type Traits::off_type[edit]

[modifier] Fonctions membres

Fonctions membres publiques
Original:
Public member functions
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construit un objet basic_filebuf
Original:
constructs a basic_filebuf object
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(fonction membre publique) [edit]
(C++11)
assigne un objet basic_filebuf
Original:
assigns a basic_filebuf object
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(fonction membre publique) [edit]
(C++11)
swaps de deux objets basic_filebuf
Original:
swaps two basic_filebuf objects
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(fonction membre publique) [edit]
[
virtuel
Original:
virtual
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Détruit un objet basic_filebuf et ferme le fichier si elle est ouverte
Original:
destructs a basic_filebuf object and closes the file if it is open
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(function membre virtuelle publique) [edit]
checks if the associated file is open
(fonction membre publique) [edit]
ouvre un fichier et le configure comme la séquence de caractères associé
Original:
opens a file and configures it as the associated character sequence
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(fonction membre publique) [edit]
le tampon des mises région et ferme le fichier associé
Original:
flushes the put area buffer and closes the associated file
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(fonction membre publique) [edit]

Protégé fonctions membres
Original:
Protected member functions
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[
virtuel
Original:
virtual
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fournit éventuellement le nombre de caractères disponibles pour l'entrée à partir du fichier
Original:
optionally provides the number of characters available for input from the file
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(fonction membre virtuelle protégée) [edit]
[
virtuel
Original:
virtual
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lit le fichier associé
Original:
reads from the associated file
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(fonction membre virtuelle protégée) [edit]
[
virtuel
Original:
virtual
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lit le fichier associé et des avances Le pointeur dans la zone get
Original:
reads from the associated file and advances the next pointer in the get area
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(fonction membre virtuelle protégée) [edit]
[
virtuel
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virtual
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remet le caractère dans la zone de get, sans incidence sur le fichier associé
Original:
puts back the character in the get area, not affecting the associated file
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(fonction membre virtuelle protégée) [edit]
[
virtuel
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virtual
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écrit des caractères dans le fichier associé à partir de la zone de mise
Original:
writes characters to the associated file from the put area
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(fonction membre virtuelle protégée) [edit]
[
virtuel
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virtual
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fourni par l'utilisateur fournit tampon ou désactive cette filebuf mémoire sans tampon
Original:
provides user-supplied buffer or turns this filebuf unbuffered
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(fonction membre virtuelle protégée) [edit]
[
virtuel
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virtual
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repositionne la position du fichier, en utilisant un adressage relatif
Original:
repositions the file position, using relative addressing
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(fonction membre virtuelle protégée) [edit]
[
virtuel
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virtual
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repositionne la position du fichier, à l'aide d'adressage absolu
Original:
repositions the file position, using absolute addressing
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(fonction membre virtuelle protégée) [edit]
[
virtuel
Original:
virtual
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écrit des caractères dans le fichier associé à partir de la zone de mise
Original:
writes characters to the associated file from the put area
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(fonction membre virtuelle protégée) [edit]
[
virtuel
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virtual
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modifie les paramètres régionaux associés
Original:
changes the associated locale
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(fonction membre virtuelle protégée) [edit]

[modifier] Fonctions annexes

l'algorithme spécialisé std::swap
Original:
specializes the std::swap algorithm
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(fonction générique) [edit]

Inherited from std::basic_streambuf

Member types

Type du membre Définition
char_type CharT[edit]
traits_type Traits[edit]
int_type Traits::int_type[edit]
pos_type Traits::pos_type[edit]
off_type Traits::off_type[edit]

Member functions

[
virtuel
Original:
virtual
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Détruit l'objet basic_streambuf
Original:
destructs the basic_streambuf object
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(function membre virtuelle publique de std::basic_streambuf) [edit]
Locales
Original:
Locales
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Invoque imbue()
Original:
invokes imbue()
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(fonction membre publique de std::basic_streambuf) [edit]
obtient une copie de l'environnement local associé
Original:
obtains a copy of the associated locale
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(fonction membre publique de std::basic_streambuf) [edit]
Positionnement
Original:
Positioning
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Invoque setbuf()
Original:
invokes setbuf()
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(fonction membre publique de std::basic_streambuf) [edit]
Invoque seekoff()
Original:
invokes seekoff()
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(fonction membre publique de std::basic_streambuf) [edit]
Invoque seekpos()
Original:
invokes seekpos()
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(fonction membre publique de std::basic_streambuf) [edit]
Invoque sync()
Original:
invokes sync()
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(fonction membre publique de std::basic_streambuf) [edit]
Obtenez région
Original:
Get area
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obtient le nombre de caractères disponibles immédiatement dans la zone d'obtention
Original:
obtains the number of characters immediately available in the get area
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(fonction membre publique de std::basic_streambuf) [edit]
les progrès de la séquence d'entrée, puis lit un caractère sans avancer de nouveau
Original:
advances the input sequence, then reads one character without advancing again
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(fonction membre publique de std::basic_streambuf) [edit]
lit un caractère de la séquence d'entrée et avance la séquence
Original:
reads one character from the input sequence and advances the sequence
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(fonction membre publique de std::basic_streambuf) [edit]
stossc
(obsolète)
les progrès de la séquence d'entrée, comme si en appelant sbumpc() et en rejetant le résultat
Original:
advances the input sequence as if by calling sbumpc() and discarding the result
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(fonction membre publique) [edit]
lire une séquence de caractères à partir de l'entrée, sans faire avancer la séquence
Original:
reads one character from the input sequence without advancing the sequence
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(fonction membre publique de std::basic_streambuf) [edit]
Invoque xsgetn()
Original:
invokes xsgetn()
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(fonction membre publique de std::basic_streambuf) [edit]
Mettez région
Original:
Put area
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écrit un caractère vers la zone de mise et avance le pointeur suivant
Original:
writes one character to the put area and advances the next pointer
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(fonction membre publique de std::basic_streambuf) [edit]
Invoque xsputn()
Original:
invokes xsputn()
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(fonction membre publique de std::basic_streambuf) [edit]
Putback
Original:
Putback
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met un caractère en arrière dans la séquence d'entrée
Original:
puts one character back in the input sequence
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(fonction membre publique de std::basic_streambuf) [edit]
déplace le pointeur suivant de l'arrière par une séquence d'entrée
Original:
moves the next pointer in the input sequence back by one
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(fonction membre publique de std::basic_streambuf) [edit]

Protected member functions

construit un objet basic_streambuf
Original:
constructs a basic_streambuf object
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(fonction membre protégée) [edit]
(C++11)
remplace un objet basic_streambuf
Original:
replaces a basic_streambuf object
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(fonction membre protégée) [edit]
(C++11)
swaps de deux objets basic_streambuf
Original:
swaps two basic_streambuf objects
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(fonction membre protégée) [edit]
Locales
Original:
Locales
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[
virtuel
Original:
virtual
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modifie les paramètres régionaux associés
Original:
changes the associated locale
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(fonction membre virtuelle protégée de std::basic_streambuf) [edit]
Positionnement
Original:
Positioning
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[
virtuel
Original:
virtual
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remplace le tampon de matrice définie par l'utilisateur, si cela est autorisé
Original:
replaces the buffer with user-defined array, if permitted
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(fonction membre virtuelle protégée de std::basic_streambuf) [edit]
[
virtuel
Original:
virtual
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repositionne le pointeur suivant de la séquence d'entrée, la séquence de sortie, ou les deux, en utilisant un adressage relatif
Original:
repositions the next pointer in the input sequence, output sequence, or both, using relative addressing
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(fonction membre virtuelle protégée de std::basic_streambuf) [edit]
[
virtuel
Original:
virtual
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repositionne le pointeur suivant de la séquence d'entrée, la séquence de sortie, ou les deux en utilisant l'adressage absolu
Original:
repositions the next pointer in the input sequence, output sequence, or both using absolute addressing
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(fonction membre virtuelle protégée de std::basic_streambuf) [edit]
[
virtuel
Original:
virtual
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synchronise les tampons avec la séquence de caractères associée
Original:
synchronizes the buffers with the associated character sequence
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(fonction membre virtuelle protégée de std::basic_streambuf) [edit]
Obtenez région
Original:
Get area
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[
virtuel
Original:
virtual
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obtient le nombre de caractères disponibles pour l'entrée dans la séquence d'entrée associée, si elle est connue
Original:
obtains the number of characters available for input in the associated input sequence, if known
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(fonction membre virtuelle protégée de std::basic_streambuf) [edit]
[
virtuel
Original:
virtual
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lit les caractères à partir de la séquence d'entrée associée à la zone d'obtention
Original:
reads characters from the associated input sequence to the get area
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(fonction membre virtuelle protégée de std::basic_streambuf) [edit]
[
virtuel
Original:
virtual
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lit les caractères à partir de la séquence d'entrée associée à la zone get et avance le pointeur suivant
Original:
reads characters from the associated input sequence to the get area and advances the next pointer
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(fonction membre virtuelle protégée de std::basic_streambuf) [edit]
[
virtuel
Original:
virtual
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lit les caractères multiples de la séquence d'entrée
Original:
reads multiple characters from the input sequence
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(fonction membre virtuelle protégée de std::basic_streambuf) [edit]
renvoie un pointeur sur le début, le caractère courant et la fin de la zone d'obtention
Original:
returns a pointer to the beginning, current character and the end of the get area
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(fonction membre protégée) [edit]
avancer le pointeur suivant de la séquence d'entrée
Original:
advances the next pointer in the input sequence
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(fonction membre protégée) [edit]
repositionne le début des pointeurs, à côté, et à la fin de la séquence d'entrée
Original:
repositions the beginning, next, and end pointers of the input sequence
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(fonction membre protégée) [edit]
Mettez région
Original:
Put area
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[
virtuel
Original:
virtual
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writes multiple characters to the output sequence
(fonction membre virtuelle protégée de std::basic_streambuf) [edit]
[
virtuel
Original:
virtual
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écrit des caractères de la séquence de sortie associé à partir de la zone de vente
Original:
writes characters to the associated output sequence from the put area
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(fonction membre virtuelle protégée de std::basic_streambuf) [edit]
renvoie un pointeur sur le début, le caractère courant et la fin de la zone de mise
Original:
returns a pointer to the beginning, current character and the end of the put area
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(fonction membre protégée) [edit]
avancer le pointeur suivant de la séquence de sortie
Original:
advances the next pointer of the output sequence
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(fonction membre protégée) [edit]
repositionne le début des pointeurs, à côté, et à la fin de la séquence de sortie
Original:
repositions the beginning, next, and end pointers of the output sequence
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(fonction membre protégée) [edit]
Putback
Original:
Putback
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[
virtuel
Original:
virtual
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]
met un caractère en arrière dans la séquence d'entrée, éventuellement de modifier la séquence d'entrée
Original:
puts a character back into the input sequence, possibly modifying the input sequence
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(fonction membre virtuelle protégée de std::basic_streambuf) [edit]