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std::basic_filebuf::operator=

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< cpp‎ | io‎ | basic filebuf

 
 
De entrada / saída da biblioteca
I / O manipuladores
C estilo de I / O
Buffers
Original:
Buffers
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basic_streambuf
basic_filebuf
basic_stringbuf
strstreambuf(obsoleta)
Streams
Original:
Streams
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Abstrações
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
Cordas I / O
Original:
String I/O
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basic_istringstream
basic_ostringstream
basic_stringstream
Matriz de I / O
Original:
Array I/O
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istrstream(obsoleta)
ostrstream(obsoleta)
strstream(obsoleta)
Tipos
Original:
Types
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streamoff
streamsize
fpos
Interface de categoria de erro
Original:
Error category interface
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iostream_category(C++11)
io_errc(C++11)
 
std::basic_filebuf
Membro funções públicas
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
Protegido funções de membro
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
Não-membros funções
Original:
Non-member functions
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swap(std::basic_filebuf)(C++11)
 
(a partir do C++ 11)
std::basic_filebuf& operator=( const std::basic_filebuf& rhs ) = delete;
1)
Primeiro chama close() para fechar o arquivo associado, então move o conteúdo da rhs em *this: a colocar e obter buffers, o arquivo associado, a localidade, o openmode, a bandeira nome esta_aberta, e qualquer outro estado. Após a mudança, rhs não está associada a um ficheiro e rhs.is_open() == false.
Original:
First calls close() to close the associated file, then moves the contents of rhs into *this: the put and get buffers, the associated file, the locale, the openmode, the is_open flag, and any other state. After the move, rhs is not associated with a file and rhs.is_open() == false.
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2)
O operador de atribuição de cópia é apagado; basic_filebuf não é CopyAssignable.
Original:
The copy assignment operator is deleted; basic_filebuf is not CopyAssignable.
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Índice

[editar] Parâmetros

rhs -
outro basic_filebuf que será movido a partir de
Original:
another basic_filebuf that will be moved from
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[editar] Valor de retorno

*this

[editar] Exemplo

#include <fstream>
#include <string>
#include <iostream>
 
int main()
{
 
    std::ifstream fin("test.in"); // read-only
    std::ofstream fout("test.out"); // write-only
 
    std::string s;
    getline(fin, s);
    std::cout << s << '\n'; // output
 
    *fin.rdbuf() = std::move(*fout.rdbuf());
 
    getline(fin, s);
    std::cout << s << '\n'; // empty line
 
    std::cout << std::boolalpha << fout.is_open() << '\n'; // prints "false"
 
}


[editar] Veja também

constrói um objeto basic_filebuf
Original:
constructs a basic_filebuf object
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(função pública membro) [edit]
(C++11)
troca dois objetos basic_filebuf
Original:
swaps two basic_filebuf objects
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(função pública membro) [edit]