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std::ios_base::ios_base

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< cpp‎ | io‎ | ios base

 
 
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::ios_base
Funções de membro
Original:
Member functions
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ios_base::ios_base
ios_base::~ios_base
Formatação
Original:
Formatting
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ios_base::flags
ios_base::setf
ios_base::unsetf
ios_base::precision
ios_base::width
Localidades
Original:
Locales
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ios_base::imbue
ios_base::getloc
Matriz extensível interno
Original:
Internal extensible array
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ios_base::xalloc
ios_base::iword
ios_base::pword
Diversos
Original:
Miscellaneous
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ios_base::register_callback
ios_base::sync_with_stdio
Aulas-Membros
Original:
Member classes
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ios_base::failure
ios_base::Init
Tipos de membro
Original:
Member types
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ios_base::openmode
ios_base::fmtflags
ios_base::iostate
ios_base::seekdir
ios_base::event
ios_base::event_callback
 
public:
ios_base( const ios_base& ) = delete;
(1)
protected:
ios_base();
(2)
1)
O construtor de cópia é apagado: fluxos não são copiável
Original:
The copy constuctor is deleted: streams are not copyable
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2)
O construtor padrão é protegido: apenas as classes derivadas pode construir std::ios_base. O estado interno é indefinido após a construção. A classe derivada deve chamar basic_ios::init() para concluir a inicialização antes da primeira utilização ou antes destruidor, caso contrário, o comportamento é indefinido.
Original:
The default constructor is protected: only derived classes may construct std::ios_base. The internal state is undefined after the construction. The derived class must call basic_ios::init() to complete initialization before first use or before destructor, otherwise the behavior is undefined.
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[editar] Notas

O mesmo se aplica para os construtores da classe seguinte na hierarquia de I / O, std::basic_ios. Além disso derivadas de classes (std::istream e std::ostream) são sempre construídos com um objeto concreto e streambuffer basic_ios::init() chamada, possivelmente mais do que uma vez, para concluir a inicialização de sua base virtual.
Original:
The same applies to the constructors of the next class in the I/O hierarchy, std::basic_ios. Further-derived classes (std::istream and std::ostream) are always constructed with a concrete streambuffer object and call basic_ios::init(), possibly more than once, to complete initialization of their virtual base.
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