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std::basic_ios::init

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< cpp‎ | io‎ | basic ios

 
 
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_ios
Les fonctions membres
Original:
Member functions
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basic_ios::basic_ios
basic_ios::~basic_ios
Fonctions de l'État
Original:
State functions
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basic_ios::good
basic_ios::eof
basic_ios::fail
basic_ios::bad
basic_ios::operator!
basic_ios::operator bool
basic_ios::rdstate
basic_ios::setstate
basic_ios::clear
Mise en forme
Original:
Formatting
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basic_ios::copyfmt
basic_ios::fill
Divers
Original:
Miscellaneous
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basic_ios::exceptions
basic_ios::imbue
basic_ios::rdbuf
basic_ios::tie
basic_ios::narrow
basic_ios::widen
Protégé fonctions membres
Original:
Protected member functions
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basic_ios::init
basic_ios::move
basic_ios::swap
basic_ios::set_rdbuf
 
protected:
void init(std::basic_streambuf<CharT,Traits>* sb );
Définit le tampon de flux associé à sb et initialise l'état interne .
Original:
Sets the associated stream buffer to sb and initializes the internal state.
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Les post-conditions sont les suivantes:
Original:
The postconditions are as follows:
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Element Value
rdbuf()sb
tie()NULL
rdstate()goodbit if sb is not NULL, otherwise badbit
exceptions()goodbit
flags()skipws | dec
width()0
precision()6
fill()widen(' ')
getloc() a copy of the value returned by std::locale()
Cette fonction membre est protégé: il est appelé par les constructeurs des classes de flux dérivés std::basic_istream et std::basic_ostream une fois que le tampon de flux associé est connu. Jusqu'à ce que cette fonction est appelée, chaque fonction membre (autre que le destructeur) de la std::basic_ios par défaut construit invoque un comportement indéfini. Notez que basic_ios est une classe de base virtuelle, et donc de son constructeur n'est pas appelé par les constructeurs de ces classes directement dérivées, ce qui explique pourquoi deux étapes d'initialisation est nécessaire .
Original:
This member function is protected: it is called by the constructors of the derived stream classes std::basic_istream and std::basic_ostream once the associated stream buffer is known. Until this function is called, every member function (other than the destructor) of the default-constructed std::basic_ios invokes undefined behavior. Note that basic_ios is a virtual base class, and therefore its constructor is not called by the constructors of those directly derived classes, which is why two-stage initialization is necessary.
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[modifier]Paramètres

sb -
tampon de flux d'associer à
Original:
stream buffer to associate to
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[modifier]Voir aussi

Construit l'objet
Original:
constructs the object
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(fonction membre publique)[edit]
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