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std::strstreambuf

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C++
 
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::strstreambuf
Funzioni membro pubbliche
Original:
Public member functions
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strstreambuf::strstreambuf
strstreambuf::~strstreambuf
strstreambuf::freeze
strstreambuf::str
strstreambuf::pcount
Protetto funzioni membro
Original:
Protected member functions
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strstreambuf::underflow
strstreambuf::pbackfail
strstreambuf::overflow
strstreambuf::setbuf
strstreambuf::seekoff
strstreambuf::seekpos
 
Elemento definito nell'header <strstream>
class strstreambuf : public std::basic_streambuf<char>
 (deprecato)
std::strstreambuf std::basic_streambuf cui è associato sequenza di caratteri è un array di caratteri, che può essere costante (ad esempio una stringa), ma non modifyable dinamici (per esempio una pila-assegnati array), o dinamico, nel qual caso il std::strstreambuf può essere consentito di riassegnare la matrice come necessari per il posizionamento di uscita (ad esempio, chiamando delete[] e new[] o forniti dall'utente funzioni).
Original:
std::strstreambuf is a std::basic_streambuf whose associated character sequence is a character array, which may be constant (e.g. a string literal), modifyable but not dynamic (e.g. a stack-allocated array), or dynamic, in which case the std::strstreambuf may be allowed to reallocate the array as necessary to accomodate output (e.g. by calling delete[] and new[] or user-provided functions).
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Applicazione tipica di un std::strstreambuf contiene quattro membri privati ​​di dati:
Original:
Typical implementation of a std::strstreambuf holds four private data members:
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1)
buffer di stato, un tipo di maschera di bit che può rappresentare una qualsiasi combinazione delle quattro valori "attribuiti" (distruttore si deallocare), "costante" (uscita non consentito), "dinamico" (uscita può ripartire), o "congelato" (uscita, deallocazione , la riassegnazione non sono ammessi)
Original:
buffer state, a bitmask type which can represent any combination of the four values "allocated" (destructor will deallocate), "constant" (output not allowed), "dynamic" (output may reallocate), or "frozen" (output, deallocation, reallocation are not allowed)
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2)
dimensione del buffer allocato
Original:
allocated buffer size
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3)
puntatore fornito dall'utente funzione di allocazione
Original:
pointer to user-provided allocation function
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4)
puntatore fornito dall'utente funzione deallocazione.
Original:
pointer to user-provided deallocation function.
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Indice

[modifica] Note

Dopo ogni chiamata a str(), una chiamata a freeze(false) è necessario per consentire il distruttore strstreambuf per deallocare il buffer in caso di necessità.
Original:
After any call to str(), a call to freeze(false) is required to allow the strstreambuf destructor to deallocate the buffer when necessary.
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[modifica] Membri funzioni

Funzioni membro pubbliche
Original:
Public member functions
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costruisce un oggetto strstreambuf
Original:
constructs a strstreambuf object
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(metodo pubblico)
[virtuale]
distrugge un oggetto strstreambuf, eventualmente deallocazione l'array di caratteri
Original:
destructs a strstreambuf object, optionally deallocating the character array
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(metodo pubblico virtuale)
imposta / cancella lo stato congelato del buffer
Original:
sets/clears the frozen state of the buffer
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(metodo pubblico)
segna il buffer congelati e restituisce il puntatore di inizio della sequenza di input
Original:
marks the buffer frozen and returns the beginning pointer of the input sequence
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(metodo pubblico)
restituisce il puntatore successivo meno il puntatore all'inizio della sequenza di uscita: il numero di caratteri scritti
Original:
returns the next pointer minus the beginning pointer in the output sequence: the number of characters written
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(metodo pubblico)

Protetto funzioni membro
Original:
Protected member functions
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[virtuale]
legge un carattere dalla sequenza di input senza avanzare l'indicatore accanto
Original:
reads a character from the input sequence without advancing the next pointer
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(virtuale protetto funzione membro)
[virtuale]
rimette un carattere nella sequenza di input
Original:
puts back a character into the input sequence
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(virtuale protetto funzione membro)
[virtuale]
aggiunge un carattere alla sequenza di uscita, possono riassegnare o inizialmente allocare il buffer se congelato e non dinamica
Original:
appends a character to the output sequence, may reallocate or initially allocate the buffer if dynamic and not frozen
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(virtuale protetto funzione membro)
[virtuale]
i tentativi di sostituire la sequenza di caratteri controllata con un array
Original:
attempts to replace the controlled character sequence with an array
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(virtuale protetto funzione membro)
[virtuale]
riposiziona il puntatore successivo nella sequenza di input, sequenza di emissione, o entrambi, utilizzando l'indirizzamento relativo
Original:
repositions the next pointer in the input sequence, output sequence, or both, using relative addressing
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(virtuale protetto funzione membro)
[virtuale]
riposiziona il puntatore successivo nella sequenza di input, sequenza di emissione, o entrambi utilizzando indirizzamento assoluto
Original:
repositions the next pointer in the input sequence, output sequence, or both using absolute addressing
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(virtuale protetto funzione membro)

Inherited from std::basic_streambuf

Member types

Membro tipo
Original:
Member type
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 Definition
char_type CharT[modifica]
traits_type Traits[modifica]
int_type Traits::int_type[modifica]
pos_type Traits::pos_type[modifica]
off_type Traits::off_type[modifica]

Member functions

[virtuale]
distrugge l'oggetto basic_streambuf
Original:
destructs the basic_streambuf object
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(metodo pubblico virtuale) [modifica]
Versioni locali
Original:
Locales
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Invoca imbue()
Original:
invokes imbue()
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(metodo pubblico) [modifica]
ottiene una copia del locale associato
Original:
obtains a copy of the associated locale
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(metodo pubblico) [modifica]
Posizionamento
Original:
Positioning
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Invoca setbuf()
Original:
invokes setbuf()
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(metodo pubblico) [modifica]
Invoca seekoff()
Original:
invokes seekoff()
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(metodo pubblico) [modifica]
Invoca seekpos()
Original:
invokes seekpos()
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(metodo pubblico) [modifica]
Invoca sync()
Original:
invokes sync()
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(metodo pubblico) [modifica]
Prendi zona
Original:
Get area
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ottiene il numero di caratteri immediatamente disponibili nella zona get
Original:
obtains the number of characters immediately available in the get area
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(metodo pubblico) [modifica]
avanza la sequenza di input, quindi legge un carattere senza avanzare di nuovo
Original:
advances the input sequence, then reads one character without advancing again
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(metodo pubblico) [modifica]
legge un carattere dalla sequenza di input e fa avanzare la sequenza
Original:
reads one character from the input sequence and advances the sequence
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(metodo pubblico) [modifica]
stossc
(deprecato)
avanza la sequenza di ingresso come se chiamando sbumpc() e scartando il risultato
Original:
advances the input sequence as if by calling sbumpc() and discarding the result
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(metodo pubblico) [modifica]
legge un carattere dalla sequenza di input senza avanzare la sequenza
Original:
reads one character from the input sequence without advancing the sequence
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(metodo pubblico) [modifica]
Invoca xsgetn()
Original:
invokes xsgetn()
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(metodo pubblico) [modifica]
Mettere zona
Original:
Put area
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scrive un carattere alla zona mettere e fa avanzare il puntatore successivo
Original:
writes one character to the put area and advances the next pointer
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(metodo pubblico) [modifica]
Invoca xsputn()
Original:
invokes xsputn()
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(metodo pubblico) [modifica]
Putback
Original:
Putback
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mette un carattere indietro nella sequenza di input
Original:
puts one character back in the input sequence
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(metodo pubblico) [modifica]
sposta il puntatore successivo nella sequenza di input retro di uno
Original:
moves the next pointer in the input sequence back by one
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(metodo pubblico) [modifica]

Protected member functions
costruisce un oggetto basic_streambuf
Original:
constructs a basic_streambuf object
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(protetto funzione membro) [modifica]
(C++11)
sostituisce un oggetto basic_streambuf
Original:
replaces a basic_streambuf object
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(protetto funzione membro) [modifica]
(C++11)
swap due oggetti basic_streambuf
Original:
swaps two basic_streambuf objects
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(protetto funzione membro) [modifica]
Versioni locali
Original:
Locales
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[virtuale]
cambia il linguaggio associato
Original:
changes the associated locale
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(virtuale protetto funzione of std::basic_streambuf membro) [modifica]
Posizionamento
Original:
Positioning
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[virtuale]
sostituisce il buffer definite dall'utente matrice, se consentito
Original:
replaces the buffer with user-defined array, if permitted
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(virtuale protetto funzione of std::basic_streambuf membro) [modifica]
[virtuale]
riposiziona il puntatore successivo nella sequenza di input, sequenza di emissione, o entrambi, utilizzando l'indirizzamento relativo
Original:
repositions the next pointer in the input sequence, output sequence, or both, using relative addressing
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(virtuale protetto funzione of std::basic_streambuf membro) [modifica]
[virtuale]
riposiziona il puntatore successivo nella sequenza di input, sequenza di emissione, o entrambi utilizzando indirizzamento assoluto
Original:
repositions the next pointer in the input sequence, output sequence, or both using absolute addressing
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(virtuale protetto funzione of std::basic_streambuf membro) [modifica]
[virtuale]
sincronizza i buffer con la sequenza di caratteri associata
Original:
synchronizes the buffers with the associated character sequence
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(virtuale protetto funzione of std::basic_streambuf membro) [modifica]
Prendi zona
Original:
Get area
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[virtuale]
ottiene il numero di caratteri disponibili per l'ingresso nella sequenza di input associato, se noto
Original:
obtains the number of characters available for input in the associated input sequence, if known
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(virtuale protetto funzione of std::basic_streambuf membro) [modifica]
[virtuale]
legge caratteri dalla sequenza di input associato alla zona get
Original:
reads characters from the associated input sequence to the get area
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(virtuale protetto funzione of std::basic_streambuf membro) [modifica]
[virtuale]
legge i caratteri della sequenza di input associato alla zona get e fa avanzare il puntatore successivo
Original:
reads characters from the associated input sequence to the get area and advances the next pointer
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(virtuale protetto funzione of std::basic_streambuf membro) [modifica]
[virtuale]
legge più caratteri dalla sequenza di input
Original:
reads multiple characters from the input sequence
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(virtuale protetto funzione of std::basic_streambuf membro) [modifica]
restituisce un puntatore all'inizio, carattere corrente e la fine dell'area get
Original:
returns a pointer to the beginning, current character and the end of the get area
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(protetto funzione membro) [modifica]
fa avanzare il puntatore successivo nella sequenza di input
Original:
advances the next pointer in the input sequence
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(protetto funzione membro) [modifica]
riposiziona puntatori l'inizio, poi, e la fine della sequenza di input
Original:
repositions the beginning, next, and end pointers of the input sequence
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(protetto funzione membro) [modifica]
Mettere zona
Original:
Put area
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[virtuale]
 writes multiple characters to the output sequence
(virtuale protetto funzione of std::basic_streambuf membro) [modifica]
[virtuale]
scrive caratteri della sequenza di emissione associato dalla zona put
Original:
writes characters to the associated output sequence from the put area
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(virtuale protetto funzione of std::basic_streambuf membro) [modifica]
restituisce un puntatore all'inizio, carattere corrente e la fine dell'area messo
Original:
returns a pointer to the beginning, current character and the end of the put area
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(protetto funzione membro) [modifica]
avanza il puntatore successiva della sequenza di emissione
Original:
advances the next pointer of the output sequence
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(protetto funzione membro) [modifica]
riposiziona puntatori l'inizio, poi, e la fine della sequenza di emissione
Original:
repositions the beginning, next, and end pointers of the output sequence
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(protetto funzione membro) [modifica]
Putback
Original:
Putback
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[virtuale]
mette un carattere indietro nella sequenza di ingresso, eventualmente modificando la sequenza di ingresso
Original:
puts a character back into the input sequence, possibly modifying the input sequence
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(virtuale protetto funzione of std::basic_streambuf membro) [modifica]
Estratto da "https://it.cppreference.com/mwiki/index.php?title=cpp/io/strstreambuf&oldid=25868"