Namespace
Varianti

std::ios_base::ios_base

Da cppreference.com.
< cpp‎ | io‎ | ios base

 
 
Ingresso / libreria di output
I / O manipolatori
C-style I / O
Buffer
Original:
Buffers
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basic_streambuf
basic_filebuf
basic_stringbuf
strstreambuf(deprecato)
Streams
Original:
Streams
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Astrazioni
Original:
Abstractions
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ios_base
basic_ios
basic_istream
basic_ostream
basic_iostream
File I / O
Original:
File I/O
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basic_ifstream
basic_ofstream
basic_fstream
String I / O
Original:
String I/O
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basic_istringstream
basic_ostringstream
basic_stringstream
Array I / O
Original:
Array I/O
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istrstream(deprecato)
ostrstream(deprecato)
strstream(deprecato)
Tipi
Original:
Types
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streamoff
streamsize
fpos
Errore categoria interfaccia
Original:
Error category interface
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iostream_category(C++11)
io_errc(C++11)
 
std::ios_base
Membri funzioni
Original:
Member functions
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ios_base::ios_base
ios_base::~ios_base
Formattazione
Original:
Formatting
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ios_base::flags
ios_base::setf
ios_base::unsetf
ios_base::precision
ios_base::width
Versioni locali
Original:
Locales
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ios_base::imbue
ios_base::getloc
Interno di matrice estensibile
Original:
Internal extensible array
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ios_base::xalloc
ios_base::iword
ios_base::pword
Varie
Original:
Miscellaneous
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ios_base::register_callback
ios_base::sync_with_stdio
Membri classi
Original:
Member classes
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ios_base::failure
ios_base::Init
Membri tipi
Original:
Member types
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ios_base::openmode
ios_base::fmtflags
ios_base::iostate
ios_base::seekdir
ios_base::event
ios_base::event_callback
 
public:
ios_base( const ios_base& ) = delete;
(1)
protected:
ios_base();
(2)
1)
Il constuctor copia viene cancellato: i flussi non sono copiabili
Original:
The copy constuctor is deleted: streams are not copyable
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2)
Il costruttore di default è protetto: solo le classi derivate possono std::ios_base costruire. Lo stato interno è definito dopo la costruzione. La classe derivata deve chiamare basic_ios::init() per completare l'inizializzazione prima del primo utilizzo o prima di distruttore, altrimenti il ​​comportamento è indefinito.
Original:
The default constructor is protected: only derived classes may construct std::ios_base. The internal state is undefined after the construction. The derived class must call basic_ios::init() to complete initialization before first use or before destructor, otherwise the behavior is undefined.
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[modifica] Note

Lo stesso vale per i costruttori della classe successiva del I / O gerarchia, std::basic_ios. Ulteriori classi derivate (std::istream e std::ostream) sono sempre costruiti con un oggetto streambuffer concreto e basic_ios::init() chiamata, possibilmente più di una volta, per completare l'inizializzazione della loro base virtuale.
Original:
The same applies to the constructors of the next class in the I/O hierarchy, std::basic_ios. Further-derived classes (std::istream and std::ostream) are always constructed with a concrete streambuffer object and call basic_ios::init(), possibly more than once, to complete initialization of their virtual base.
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