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std::basic_filebuf

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< cpp‎ | io

 
 
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)
 
Defined in header <fstream>
template<

    class charT,
    class Traits = std::char_traits<CharT>,
    class Allocator = std::allocator<CharT>

> class basic_filebuf : public std::basic_streambuf<CharT, Traits>
std::basic_filebuf é um std::basic_streambuf cujo associado seqüência de caracteres é um arquivo. Tanto a sequência de entrada e a sequência de saída estão associados com o mesmo ficheiro, e uma posição de articulação de arquivo é mantida para ambas as operações.
Original:
std::basic_filebuf is a std::basic_streambuf whose associated character sequence is a file. Both the input sequence and the output sequence are associated with the same file, and a joint file position is maintained for both operations.
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O underflow funções () e overflow () / sync () realizar a I real / S entre o arquivo e as áreas de obter e colocar do buffer. Quando CharT não é char, a maioria das implementações de armazenar caracteres de vários bytes no arquivo e uma faceta std::codecvt é usado para realizar ampla / conversão de caracteres multibyte.
Original:
The functions underflow() and overflow()/sync() perform the actual I/O between the file and the get and put areas of the buffer. When CharT is not char, most implementations store multibyte characters in the file and a std::codecvt facet is used to perform wide/multibyte character conversion.
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Duas especializações para tipos de caracteres comuns também estão definidos:
Original:
Two specializations for common character types are also defined:
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Defined in header <streambuf>
Tipo
Original:
Type
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Definition
filebuf basic_filebuf<char>
wfilebuf basic_filebuf<wchar_t>

Índice

[editar] Tipos de membro

Tipo de membro
Original:
Member type
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Definition
char_type CharT[edit]
traits_type Traits[edit]
int_type Traits::int_type[edit]
pos_type
Traits::pos_type que é necessário para ser std::fpos<Traits::state_type>
Original:
Traits::pos_type which is required to be std::fpos<Traits::state_type>
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off_type Traits::off_type[edit]

[editar] Funções de membro

Membro funções públicas
Original:
Public member functions
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constrói um objeto basic_filebuf
Original:
constructs a basic_filebuf object
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(função pública membro) [edit]
(C++11)
atribui um objeto basic_filebuf
Original:
assigns 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]
[virtual]
destrói um objeto basic_filebuf e fecha o arquivo, se ele estiver aberto
Original:
destructs a basic_filebuf object and closes the file if it is open
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(função pública virtual membro) [edit]
checks if the associated file is open
(função pública membro) [edit]
abre um arquivo e configura como a seqüência de caracteres associado
Original:
opens a file and configures it as the associated character sequence
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(função pública membro) [edit]
esvaziará o buffer área e colocar fecha o arquivo associado
Original:
flushes the put area buffer and closes the associated file
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(função pública membro) [edit]

Protegido funções de membro
Original:
Protected member functions
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[virtual]
opcionalmente fornece o número de caracteres disponíveis para a entrada do arquivo
Original:
optionally provides the number of characters available for input from the file
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(virtual protegido função de membro) [edit]
[virtual]
lê o arquivo associado
Original:
reads from the associated file
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(virtual protegido função de membro) [edit]
[virtual]
lê o arquivo associado e avanços o ponteiro próximo da região get
Original:
reads from the associated file and advances the next pointer in the get area
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(virtual protegido função de membro) [edit]
[virtual]
coloca de volta o personagem na área get, não afetando o arquivo associado
Original:
puts back the character in the get area, not affecting the associated file
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(virtual protegido função de membro) [edit]
[virtual]
escreve caracteres para o arquivo associado da área de venda
Original:
writes characters to the associated file from the put area
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(virtual protegido função de membro) [edit]
[virtual]
fornece fornecido pelo usuário tampão ou transforma este filebuf unbuffered
Original:
provides user-supplied buffer or turns this filebuf unbuffered
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(virtual protegido função de membro) [edit]
[virtual]
reposiciona a posição do arquivo, usando endereçamento relativo
Original:
repositions the file position, using relative addressing
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(virtual protegido função de membro) [edit]
[virtual]
reposiciona a posição do arquivo, usando o endereçamento absoluto
Original:
repositions the file position, using absolute addressing
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(virtual protegido função de membro) [edit]
[virtual]
escreve caracteres para o arquivo associado da área de venda
Original:
writes characters to the associated file from the put area
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(virtual protegido função de membro) [edit]
[virtual]
altera o local associado
Original:
changes the associated locale
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(virtual protegido função de membro) [edit]

[editar] Não-membros funções

o algoritmo especializado std::swap
Original:
specializes the std::swap algorithm
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(modelo de função) [edit]

Inherited from std::basic_streambuf

Member types

Tipo de membro
Original:
Member type
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Definition
char_type CharT[edit]
traits_type Traits[edit]
int_type Traits::int_type[edit]
pos_type Traits::pos_type[edit]
off_type Traits::off_type[edit]

Member functions

[virtual]
destrói o objeto basic_streambuf
Original:
destructs the basic_streambuf object
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(of std::basic_streambuf função pública virtual membro) [edit]
Localidades
Original:
Locales
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Invoca imbue()
Original:
invokes imbue()
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(of std::basic_streambuf função pública membro) [edit]
obtém uma cópia do local associado
Original:
obtains a copy of the associated locale
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(of std::basic_streambuf função pública membro) [edit]
Posicionamento
Original:
Positioning
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Invoca setbuf()
Original:
invokes setbuf()
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(of std::basic_streambuf função pública membro) [edit]
Invoca seekoff()
Original:
invokes seekoff()
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(of std::basic_streambuf função pública membro) [edit]
Invoca seekpos()
Original:
invokes seekpos()
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(of std::basic_streambuf função pública membro) [edit]
Invoca sync()
Original:
invokes sync()
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(of std::basic_streambuf função pública membro) [edit]
Obter área
Original:
Get area
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obtém o número de caracteres disponíveis imediatamente na área get
Original:
obtains the number of characters immediately available in the get area
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(of std::basic_streambuf função pública membro) [edit]
avança a seqüência de entrada, em seguida, lê um caractere sem avançar novamente
Original:
advances the input sequence, then reads one character without advancing again
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(of std::basic_streambuf função pública membro) [edit]
lê um caractere da seqüência de entrada e avança a seqüência
Original:
reads one character from the input sequence and advances the sequence
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(of std::basic_streambuf função pública membro) [edit]
stossc
(obsoleta)
avança a seqüência de entrada, como se chamando sbumpc() e descartando o resultado
Original:
advances the input sequence as if by calling sbumpc() and discarding the result
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(função pública membro) [edit]
lê um caractere da seqüência de entrada sem avançar na seqüência
Original:
reads one character from the input sequence without advancing the sequence
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(of std::basic_streambuf função pública membro) [edit]
Invoca xsgetn()
Original:
invokes xsgetn()
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(of std::basic_streambuf função pública membro) [edit]
Coloque área
Original:
Put area
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escreve um personagem para a área de largada e avança o ponteiro seguinte
Original:
writes one character to the put area and advances the next pointer
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(of std::basic_streambuf função pública membro) [edit]
Invoca xsputn()
Original:
invokes xsputn()
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(of std::basic_streambuf função pública membro) [edit]
Putback
Original:
Putback
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coloca um personagem de volta na seqüência de entrada
Original:
puts one character back in the input sequence
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(of std::basic_streambuf função pública membro) [edit]
move o ponteiro próximo da sequência de entrada volta a um
Original:
moves the next pointer in the input sequence back by one
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(of std::basic_streambuf função pública membro) [edit]

Protected member functions

constrói um objeto basic_streambuf
Original:
constructs a basic_streambuf object
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(protegido função de membro) [edit]
(C++11)
substitui um objeto basic_streambuf
Original:
replaces a basic_streambuf object
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(protegido função de membro) [edit]
(C++11)
troca dois objetos basic_streambuf
Original:
swaps two basic_streambuf objects
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(protegido função de membro) [edit]
Localidades
Original:
Locales
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[virtual]
altera o local associado
Original:
changes the associated locale
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(virtual protegido of std::basic_streambuf função de membro) [edit]
Posicionamento
Original:
Positioning
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[virtual]
substitui o buffer com matriz definida pelo usuário, se for permitido
Original:
replaces the buffer with user-defined array, if permitted
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(virtual protegido of std::basic_streambuf função de membro) [edit]
[virtual]
reposiciona ponteiro a seguinte na sequência de entrada, de saída de sequência, ou ambos, usando endereçamento relativo
Original:
repositions the next pointer in the input sequence, output sequence, or both, using relative addressing
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(virtual protegido of std::basic_streambuf função de membro) [edit]
[virtual]
reposiciona o ponteiro próximo na seqüência de entrada, a seqüência de saída, ou ambos, usando endereçamento absoluto
Original:
repositions the next pointer in the input sequence, output sequence, or both using absolute addressing
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(virtual protegido of std::basic_streambuf função de membro) [edit]
[virtual]
sincroniza os buffers com a seqüência de caracteres associado
Original:
synchronizes the buffers with the associated character sequence
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(virtual protegido of std::basic_streambuf função de membro) [edit]
Obter área
Original:
Get area
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[virtual]
obtém o número de caracteres disponíveis para a entrada da sequência de entrada associada, se conhecida
Original:
obtains the number of characters available for input in the associated input sequence, if known
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(virtual protegido of std::basic_streambuf função de membro) [edit]
[virtual]
lê caracteres da seqüência de entrada associado para a área get
Original:
reads characters from the associated input sequence to the get area
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(virtual protegido of std::basic_streambuf função de membro) [edit]
[virtual]
lê caracteres da seqüência de entrada associado à área de get e avança o ponteiro seguinte
Original:
reads characters from the associated input sequence to the get area and advances the next pointer
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(virtual protegido of std::basic_streambuf função de membro) [edit]
[virtual]
lê vários personagens da seqüência de entrada
Original:
reads multiple characters from the input sequence
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(virtual protegido of std::basic_streambuf função de membro) [edit]
retorna um ponteiro para o início, o personagem de corrente e o fim da área get
Original:
returns a pointer to the beginning, current character and the end of the get area
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(protegido função de membro) [edit]
avança o ponteiro próximo na seqüência de entrada
Original:
advances the next pointer in the input sequence
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(protegido função de membro) [edit]
reposiciona ponteiros o início, ao lado, e no fim da seqüência de entrada
Original:
repositions the beginning, next, and end pointers of the input sequence
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(protegido função de membro) [edit]
Coloque área
Original:
Put area
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[virtual]
writes multiple characters to the output sequence
(virtual protegido of std::basic_streambuf função de membro) [edit]
[virtual]
escreve caracteres para a seqüência de saída associado da área de venda
Original:
writes characters to the associated output sequence from the put area
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(virtual protegido of std::basic_streambuf função de membro) [edit]
retorna um ponteiro para o início, o personagem de corrente e o fim da área de venda
Original:
returns a pointer to the beginning, current character and the end of the put area
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(protegido função de membro) [edit]
avanços ponteiro o próximo da seqüência de saída
Original:
advances the next pointer of the output sequence
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(protegido função de membro) [edit]
reposiciona ponteiros o início, ao lado, e no fim da seqüência de saída
Original:
repositions the beginning, next, and end pointers of the output sequence
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(protegido função de membro) [edit]
Putback
Original:
Putback
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[virtual]
coloca um caractere de volta para a sequência de entrada, possivelmente modificando a sequência de entrada
Original:
puts a character back into the input sequence, possibly modifying the input sequence
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(virtual protegido of std::basic_streambuf função de membro) [edit]