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std::basic_fstream

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C++
 
De entrada / saída da biblioteca
I / O manipuladores
C estilo de I / O
Buffers
Original:
Buffers
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(obsoleta)
Streams
Original:
Streams
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Abstrações
Original:
Abstractions
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File I / O
Original:
File I/O
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basic_fstream
Cordas I / O
Original:
String I/O
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Matriz de I / O
Original:
Array I/O
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(obsoleta)
(obsoleta)
(obsoleta)
Tipos
Original:
Types
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Interface de categoria de erro
Original:
Error category interface
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(C++11)
(C++11)
 
std::basic_fstream
Funções de membro
Original:
Member functions
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basic_fstream::basic_fstream
basic_fstream::operator=(C++11)
basic_fstream::swap(C++11)
basic_fstream::rdbuf
Operações de arquivo
Original:
File operations
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basic_fstream::is_open
basic_fstream::open
basic_fstream::close
Não-membros funções
Original:
Non-member functions
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basic_fstream::swap(std::basic_fstream)(C++11)
 
Definido no cabeçalho <fstream>
template<

    class CharT,
    class Traits = std::char_traits<CharT>

> class basic_fstream : public std::basic_iostream<CharT, Traits>
O basic_fstream modelo de classe implementa alto nível de entrada / saída operações em arquivos correntes baseados. Ele interage um streambuffer baseado em arquivo (std::basic_filebuf) com a interface de alto nível de (std::basic_iostream).
Original:
The class template basic_fstream implements high-level input/output operations on file based streams. It interfaces a file-based streambuffer (std::basic_filebuf) with the high-level interface of (std::basic_iostream).
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Uma implementação típica de std::basic_fstream detém apenas um não-membro derivado de dados: uma instância de std::basic_filebuf<CharT, Traits>.
Original:
A typical implementation of std::basic_fstream holds only one non-derived data member: an instance of std::basic_filebuf<CharT, Traits>.
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cpp/io/ios basecpp/io/basic ioscpp/io/basic istreamcpp/io/basic ostreamcpp/io/basic iostreamstd-basic fstream-inheritance.svg
Sobre esta imagem

Inheritance diagram

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 <fstream>
Tipo
Original:
Type
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 Definition
fstream basic_fstream<char>
wfstream basic_fstream<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[edit]
off_type Traits::off_type[edit]

[editar] Funções de membro
constrói o fluxo de arquivo
Original:
constructs the file stream
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(função pública membro) [edit]
(destructor)
[virtual] (declarada implicitamente)
 destructs the basic_fstream and the associated buffer, closes the file
(função pública virtual membro) [edit]
(C++11)
move o fluxo de arquivo
Original:
moves the file stream
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(função pública membro) [edit]
(C++11)
troca dois fluxos de arquivo
Original:
swaps two file streams
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(função pública membro) [edit]
retorna o objeto dispositivo subjacente de arquivo RAW
Original:
returns the underlying raw file device object
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(função pública membro) [edit]
Operações de arquivo
Original:
File operations
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Verifica se o fluxo tem um arquivo associado
Original:
checks if the stream has an associated file
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(função pública membro) [edit]
abre um arquivo e associa com o fluxo
Original:
opens a file and associates it with the stream
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(função pública membro) [edit]
fecha o arquivo associado
Original:
closes the associated file
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(função pública membro) [edit]

[editar] Não-membros funções

(C++11)
o algoritmo especializado std::swap
Original:
specializes the std::swap algorithm
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(modelo de função) [edit]

Herdado de std::basic_istream

Member functions

Entrada formatada
Original:
Formatted input
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extratos dados formatados
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extracts formatted data
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(of std::basic_istream função pública membro) [edit]
Entrada não formatado
Original:
Unformatted input
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extratos personagens
Original:
extracts characters
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(of std::basic_istream função pública membro) [edit]
lê o próximo caractere sem extraí-lo
Original:
reads the next character without extracting it
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(of std::basic_istream função pública membro) [edit]
unextracts um personagem
Original:
unextracts a character
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(of std::basic_istream função pública membro) [edit]
coloca personagem em fluxo de entrada
Original:
puts character into input stream
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(of std::basic_istream função pública membro) [edit]
extratos de caracteres até o caráter dado foi encontrado
Original:
extracts characters until the given character is found
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(of std::basic_istream função pública membro) [edit]
extratos e personagens descarta até o caráter dado foi encontrado
Original:
extracts and discards characters until the given character is found
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(of std::basic_istream função pública membro) [edit]
extrai blocos de caracteres
Original:
extracts blocks of characters
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(of std::basic_istream função pública membro) [edit]
extrai blocos já disponíveis de caracteres
Original:
extracts already available blocks of characters
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(of std::basic_istream função pública membro) [edit]
retorna o número de caracteres extraídos por operação de entrada passado não formatado
Original:
returns number of characters extracted by last unformatted input operation
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(of std::basic_istream função pública membro) [edit]
Posicionamento
Original:
Positioning
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retorna o indicador de posição de entrada
Original:
returns the input position indicator
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(of std::basic_istream função pública membro) [edit]
sets the input position indicator
(of std::basic_istream função pública membro) [edit]
Diversos
Original:
Miscellaneous
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sincroniza com o dispositivo de armazenamento subjacente
Original:
synchronizes with the underlying storage device
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(of std::basic_istream função pública membro) [edit]

Member classes

 implements basic logic for preparation of the stream for input operations
(of std::basic_istream public class membro) [edit]


Herdado de std::basic_ostream

Member functions

Entrada formatada
Original:
Formatted input
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insere dados formatados
Original:
inserts formatted data
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(of std::basic_ostream função pública membro) [edit]
Entrada não formatado
Original:
Unformatted input
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insere um caractere
Original:
inserts a character
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(of std::basic_ostream função pública membro) [edit]
insere blocos de caracteres
Original:
inserts blocks of characters
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(of std::basic_ostream função pública membro) [edit]
Posicionamento
Original:
Positioning
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retorna o indicador de posição de saída
Original:
returns the output position indicator
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(of std::basic_ostream função pública membro) [edit]
define o indicador de posição de saída
Original:
sets the output position indicator
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(of std::basic_ostream função pública membro) [edit]
Diversos
Original:
Miscellaneous
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sincroniza com o dispositivo de armazenamento subjacente
Original:
synchronizes with the underlying storage device
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(of std::basic_ostream função pública membro) [edit]

Member classes
implementa a lógica de base para a preparação do fluxo de saída para as operações
Original:
implements basic logic for preparation of the stream for output operations
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(of std::basic_ostream public class membro) [edit]

Herdado de std::basic_ios

Member types

Tipo de membro
Original:
Member type
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 Definition
char_type CharT
traits_type Traits
int_type Traits::int_type
pos_type Traits::pos_type
off_type Traits::off_type
Funções do Estado
Original:
State functions
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verifica se não ocorreu nenhum erro ou seja, I / O operações estão disponíveis
Original:
checks if no error has occurred i.e. I/O operations are available
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(of std::basic_ios função pública membro) [edit]
verifica se fim-de-arquivo foi atingido
Original:
checks if end-of-file has been reached
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(of std::basic_ios função pública membro) [edit]
verifica se um erro recuperável ocorreu
Original:
checks if a recoverable error has occurred
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(of std::basic_ios função pública membro) [edit]
verifica se um erro não-recuperável ocorreu
Original:
checks if a non-recoverable error has occurred
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(of std::basic_ios função pública membro) [edit]
Verifica se um erro ocorreu (sinônimo de fail())
Original:
checks if an error has occurred (synonym of fail())
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(of std::basic_ios função pública membro) [edit]
(até C++11)
(desde C++11)
verifica se não ocorreu nenhum erro (sinônimo de !fail())
Original:
checks if no error has occurred (synonym of !fail())
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(of std::basic_ios função pública membro) [edit]
retorna bandeiras estaduais
Original:
returns state flags
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(of std::basic_ios função pública membro) [edit]
define bandeiras estaduais
Original:
sets state flags
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(of std::basic_ios função pública membro) [edit]
apaga bandeiras de erro e eof
Original:
clears error and eof flags
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(of std::basic_ios função pública membro) [edit]
Formatação
Original:
Formatting
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cópias formatar informações
Original:
copies formatting information
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(of std::basic_ios função pública membro) [edit]
gerencia o caractere de preenchimento
Original:
manages the fill character
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(of std::basic_ios função pública membro) [edit]
Diversos
Original:
Miscellaneous
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 manages exception mask
(of std::basic_ios função pública membro) [edit]
define a localidade
Original:
sets the locale
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(of std::basic_ios função pública membro) [edit]
administra buffer de fluxo associado
Original:
manages associated stream buffer
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(of std::basic_ios função pública membro) [edit]
gerencia fluxo amarrado
Original:
manages tied stream
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(of std::basic_ios função pública membro) [edit]
estreita caracteres
Original:
narrows characters
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(of std::basic_ios função pública membro) [edit]
widens characters
(of std::basic_ios função pública membro) [edit]

Herdado de std::ios_base

Member functions

Formatação
Original:
Formatting
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administra sinalizadores de formato
Original:
manages format flags
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(of std::ios_base função pública membro) [edit]
define como formato específico
Original:
sets specific format flag
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(of std::ios_base função pública membro) [edit]
clears specific format flag
(of std::ios_base função pública membro) [edit]
gerencia precisão decimal de operações de ponto flutuante
Original:
manages decimal precision of floating point operations
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(of std::ios_base função pública membro) [edit]
manages field width
(of std::ios_base função pública membro) [edit]
Localidades
Original:
Locales
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define localidade
Original:
sets locale
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(of std::ios_base função pública membro) [edit]
retorna local atual
Original:
returns current locale
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(of std::ios_base função pública membro) [edit]
Matriz extensível interno
Original:
Internal extensible array
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[estática]
retorna um inteiro todo o programa original que é seguro para utilização como índice para pword () e iword ()
Original:
returns a program-wide unique integer that is safe to use as index to pword() and iword()
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(of std::ios_base função public static membro) [edit]
redimensiona a armazenagem privada, se necessário e acesso ao elemento long no índice fornecido
Original:
resizes the private storage if necessary and access to the long element at the given index
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(of std::ios_base função pública membro) [edit]
redimensiona a armazenagem privada, se necessário e acesso ao elemento void* no índice fornecido
Original:
resizes the private storage if necessary and access to the void* element at the given index
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(of std::ios_base função pública membro) [edit]
Diversos
Original:
Miscellaneous
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 registers event callback function
(of std::ios_base função pública membro) [edit]
[estática]
define se C + + e bibliotecas C IO são interoperáveis
Original:
sets whether C++ and C IO libraries are interoperable
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Aulas-Membros
Original:
Member classes
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exceção fluxo
Original:
stream exception
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(of std::ios_base public class membro) [edit]
inicializa objetos de fluxo padrão
Original:
initializes standard stream objects
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(of std::ios_base public class membro) [edit]

Tipos de membro e constantes
Original:
Member types and constants
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Tipo
Original:
Type
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 Explanation
fluxo tipo de modo aberto

As constantes também estão definidos:

Constante
Original:
Constant
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 Explanation[edit]
app
procurar o fim do fluxo antes de cada gravação
Original:
seek to the end of stream before each write
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[edit]
binary
abrir em modo binário
Original:
open in binary mode
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[edit]
in
Abrir para leitura
Original:
open for reading
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[edit]
out
abrir para escrita
Original:
open for writing
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[edit]
trunc
descartar o conteúdo da corrente durante a abertura
Original:
discard the contents of the stream when opening
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[edit]
ate
procurar o fim do fluxo imediatamente depois de aberto
Original:
seek to the end of stream immediately after open
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[edit]
Original:
stream open mode type

The following constants are also defined:

Constante
Original:
Constant
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 Explanation[edit]
app
procurar o fim do fluxo antes de cada gravação
Original:
seek to the end of stream before each write
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[edit]
binary
abrir em modo binário
Original:
open in binary mode
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[edit]
in
Abrir para leitura
Original:
open for reading
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[edit]
out
abrir para escrita
Original:
open for writing
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[edit]
trunc
descartar o conteúdo da corrente durante a abertura
Original:
discard the contents of the stream when opening
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[edit]
ate
procurar o fim do fluxo imediatamente depois de aberto
Original:
seek to the end of stream immediately after open
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[edit]
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(typedef) [edit]
Tipo de bandeiras formatação

As constantes também estão definidos:

Constante
Original:
Constant
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 Explanation[edit]
dec
usar base decimal para o inteiro I / O
Original:
use decimal base for integer I/O
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[edit]
oct
usar octal de base para o inteiro I / O
Original:
use octal base for integer I/O
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[edit]
hex
usar base hexadecimal para inteiro I / O
Original:
use hexadecimal base for integer I/O
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[edit]
basefield
dec|oct|hex|0. Útil para mascarar operações
Original:
dec|oct|hex|0. Useful for masking operations
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[edit]
left
ajuste de esquerda (adiciona caracteres de preenchimento para a direita)
Original:
left adjustment (adds fill characters to the right)
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[edit]
right
ajuste certo (adiciona caracteres de preenchimento para a esquerda)
Original:
right adjustment (adds fill characters to the left)
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[edit]
internal
ajuste interno (adiciona caracteres de preenchimento para o ponto interno designado)
Original:
internal adjustment (adds fill characters to the internal designated point)
The text has been machine-translated via Google Translate.
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[edit]
adjustfield
left|right|internal. Útil para mascarar operações
Original:
left|right|internal. Useful for masking operations
The text has been machine-translated via Google Translate.
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[edit]
scientific
gerar tipos de ponto flutuante utilizando notação científica, ou notação hex se combinado com fixo
Original:
generate floating point types using scientific notation, or hex notation if combined with fixed
The text has been machine-translated via Google Translate.
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[edit]
fixed
gerar tipos de ponto flutuante usando a notação fixa, ou notação hexadecimal, se combinada com a científica
Original:
generate floating point types using fixed notation, or hex notation if combined with scientific
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[edit]
floatfield
scientific|fixed|(scientific|fixed)|0. Útil para mascarar operações
Original:
scientific|fixed|(scientific|fixed)|0. Useful for masking operations
The text has been machine-translated via Google Translate.
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[edit]
boolalpha
inserir e extrair tipo bool em formato alfanumérico
Original:
insert and extract bool type in alphanumeric format
The text has been machine-translated via Google Translate.
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[edit]
showbase
gerar um prefixo que indica a base numérica para a saída inteiro, exigem o indicador de moeda em monetária I / O
Original:
generate a prefix indicating the numeric base for integer output, require the currency indicator in monetary I/O
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[edit]
showpoint
gerar um caráter de ponto decimal incondicionalmente para ponto flutuante de produção número
Original:
generate a decimal-point character unconditionally for floating-point number output
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[edit]
showpos
gerar um personagem + para não-negativo de saída numérico
Original:
generate a + character for non-negative numeric output
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[edit]
skipws
pular espaços em branco à esquerda antes de operações de entrada certas
Original:
skip leading whitespace before certain input operations
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[edit]
unitbuf
lave a saída após cada operação de saída
Original:
flush the output after each output operation
The text has been machine-translated via Google Translate.
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[edit]
uppercase
substituir certas letras minúsculas com seus uppercase
equivalents em certas operações de saída de saída
Original:
replace certain lowercase letters with their uppercase
equivalents in certain output output operations
The text has been machine-translated via Google Translate.
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[edit]
Original:
formatting flags type

The following constants are also defined:

Constante
Original:
Constant
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 Explanation[edit]
dec
usar base decimal para o inteiro I / O
Original:
use decimal base for integer I/O
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[edit]
oct
usar octal de base para o inteiro I / O
Original:
use octal base for integer I/O
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[edit]
hex
usar base hexadecimal para inteiro I / O
Original:
use hexadecimal base for integer I/O
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[edit]
basefield
dec|oct|hex|0. Útil para mascarar operações
Original:
dec|oct|hex|0. Useful for masking operations
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
[edit]
left
ajuste de esquerda (adiciona caracteres de preenchimento para a direita)
Original:
left adjustment (adds fill characters to the right)
The text has been machine-translated via Google Translate.
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[edit]
right
ajuste certo (adiciona caracteres de preenchimento para a esquerda)
Original:
right adjustment (adds fill characters to the left)
The text has been machine-translated via Google Translate.
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[edit]
internal
ajuste interno (adiciona caracteres de preenchimento para o ponto interno designado)
Original:
internal adjustment (adds fill characters to the internal designated point)
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
[edit]
adjustfield
left|right|internal. Útil para mascarar operações
Original:
left|right|internal. Useful for masking operations
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
[edit]
scientific
gerar tipos de ponto flutuante utilizando notação científica, ou notação hex se combinado com fixo
Original:
generate floating point types using scientific notation, or hex notation if combined with fixed
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
[edit]
fixed
gerar tipos de ponto flutuante usando a notação fixa, ou notação hexadecimal, se combinada com a científica
Original:
generate floating point types using fixed notation, or hex notation if combined with scientific
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
[edit]
floatfield
scientific|fixed|(scientific|fixed)|0. Útil para mascarar operações
Original:
scientific|fixed|(scientific|fixed)|0. Useful for masking operations
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
[edit]
boolalpha
inserir e extrair tipo bool em formato alfanumérico
Original:
insert and extract bool type in alphanumeric format
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
[edit]
showbase
gerar um prefixo que indica a base numérica para a saída inteiro, exigem o indicador de moeda em monetária I / O
Original:
generate a prefix indicating the numeric base for integer output, require the currency indicator in monetary I/O
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
[edit]
showpoint
gerar um caráter de ponto decimal incondicionalmente para ponto flutuante de produção número
Original:
generate a decimal-point character unconditionally for floating-point number output
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
[edit]
showpos
gerar um personagem + para não-negativo de saída numérico
Original:
generate a + character for non-negative numeric output
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
[edit]
skipws
pular espaços em branco à esquerda antes de operações de entrada certas
Original:
skip leading whitespace before certain input operations
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
[edit]
unitbuf
lave a saída após cada operação de saída
Original:
flush the output after each output operation
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
[edit]
uppercase
substituir certas letras minúsculas com seus uppercase
equivalents em certas operações de saída de saída
Original:
replace certain lowercase letters with their uppercase
equivalents in certain output output operations
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
[edit]
The text has been machine-translated via Google Translate.
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(typedef) [edit]
estado do tipo de fluxo

As constantes também estão definidos:

Constante
Original:
Constant
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 Explanation[edit]
goodbit
nenhum erro
Original:
no error
The text has been machine-translated via Google Translate.
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[edit]
badbit
erro de fluxo de irrecuperável
Original:
irrecoverable stream error
The text has been machine-translated via Google Translate.
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[edit]
failbit
entrada / saída de operação falhou (formatação ou erro de extração)
Original:
input/output operation failed (formatting or extraction error)
The text has been machine-translated via Google Translate.
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[edit]
eofbit
seqüência de entrada associado atingiu o fim-de-arquivo
Original:
associated input sequence has reached end-of-file
The text has been machine-translated via Google Translate.
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[edit]
Original:
state of the stream type

The following constants are also defined:

Constante
Original:
Constant
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
 Explanation[edit]
goodbit
nenhum erro
Original:
no error
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
[edit]
badbit
erro de fluxo de irrecuperável
Original:
irrecoverable stream error
The text has been machine-translated via Google Translate.
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[edit]
failbit
entrada / saída de operação falhou (formatação ou erro de extração)
Original:
input/output operation failed (formatting or extraction error)
The text has been machine-translated via Google Translate.
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[edit]
eofbit
seqüência de entrada associado atingiu o fim-de-arquivo
Original:
associated input sequence has reached end-of-file
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
[edit]
The text has been machine-translated via Google Translate.
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(typedef) [edit]
seeking direction type

The following constants are also defined:

Constante
Original:
Constant
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
 Explanation[edit]
beg
o início de um fluxo
Original:
the beginning of a stream
The text has been machine-translated via Google Translate.
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[edit]
end
o fim de um córrego
Original:
the ending of a stream
The text has been machine-translated via Google Translate.
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[edit]
cur
a posição atual do indicador de posição de fluxo
Original:
the current position of stream position indicator
The text has been machine-translated via Google Translate.
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[edit]

(typedef) [edit]
especifica o tipo de evento
Original:
specifies event type
The text has been machine-translated via Google Translate.
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(enum) [edit]
callback tipo de função
Original:
callback function type
The text has been machine-translated via Google Translate.
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(typedef) [edit]
Obtida de "https://pt.cppreference.com/mwiki/index.php?title=cpp/io/basic_fstream&oldid=26680"