Espaços nominais
Variantes
Acções

std::basic_istream::unget

Da cppreference.com
< cpp‎ | io‎ | basic istream

 
 
De entrada / saída da biblioteca
I / O manipuladores
C estilo de I / O
Buffers
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(obsoleta)
Streams
Original:
Streams
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Abstrações
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
File I / 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
Cordas 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
Matriz de 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(obsoleta)
ostrstream(obsoleta)
strstream(obsoleta)
Tipos
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 de categoria de erro
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_istream
Objetos globais
Original:
Global objects
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
cin
wcin
Funções de membro
Original:
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_istream::basic_istream
basic_istream::~basic_istream
basic_istream::operator=(C++11)
Entrada formatada
Original:
Formatted input
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
basic_istream::operator>>
Entrada não formatado
Original:
Unformatted input
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
basic_istream::get
basic_istream::peek
basic_istream::unget
basic_istream::putback
basic_istream::getline
basic_istream::ignore
basic_istream::read
basic_istream::readsome
basic_istream::gcount
Posicionamento
Original:
Positioning
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
basic_istream::tellg
basic_istream::seekg
Diversos
Original:
Miscellaneous
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
basic_istream::sync
basic_istream::swap(C++11)
Aulas-Membros
Original:
Member classes
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
basic_istream::sentry
Não-membros funções
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.
operator>>(std::basic_istream)
 
basic_istream& unget();
Faz o personagem mais recentemente extraído disponível novamente.
Original:
Makes the most recently extracted character available again.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Primeiro limpa eofbit, em seguida, se comporta como UnformattedInputFunction. Depois de construir e verificar o objeto de sentinela, chama rdbuf()->sungetc().
Original:
First clears eofbit, then behaves as UnformattedInputFunction. After constructing and checking the sentry object, calls rdbuf()->sungetc().
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Se rdbuf()->sungetc() retornos Traits::eof(), chama setstate(badbit).
Original:
If rdbuf()->sungetc() returns Traits::eof(), calls setstate(badbit).
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Em qualquer caso, define o gcount() contador a zero.
Original:
In any case, sets the gcount() counter to zero.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

Índice

[editar] Parâmetros

(Nenhum)
Original:
(none)
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

[editar] Valor de retorno

*this

[editar] Exemplo

#include <sstream>
#include <iostream>
int main()
{
    std::istringstream s1("Hello, world.");
    char c1 = s1.get();
    if(s1.unget())
    {
        char c2 = s1.get();
        std::cout << "Got: " << c1 << " got again: " << c2 << '\n';
    }
}

Output:

Got: H got again: H

[editar] Veja também

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

(função pública membro) [edit]
lê o próximo caractere sem extraí-lo
Original:
reads the next character without extracting it
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(função pública membro) [edit]
coloca personagem em fluxo de entrada
Original:
puts character into input stream
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(função pública membro) [edit]