std::basic_fstream::is_open

 

C++

Lenguaje

Cabeceras

Conceptos

Biblioteca de utilidades

Biblioteca de cadenas

Biblioteca de contenedores

Biblioteca de algoritmos

Biblioteca de iteradores

Biblioteca numérica

Biblioteca de entrada/salida

Biblioteca de localización

Biblioteca de expresiones regulares (C++11)

Biblioteca de operaciones atómicas (C++11)

Biblioteca de tareas/subprocesos (C++11)

 

Entrada / salida de la biblioteca

I / O manipuladores

C-estilo 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 (obsoleto)

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

Abstracciones 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

Cadena de 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 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 (obsoleto)

ostrstream (obsoleto)

strstream (obsoleto)

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

Error interfaz categoría 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_fstream

Las funciones miembro 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_fstream::basic_fstream

basic_fstream::operator= (C++11)

basic_fstream::swap (C++11)

basic_fstream::rdbuf

Las operaciones de archivo Original: File operations The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

basic_fstream::is_open

basic_fstream::open

basic_fstream::close

Terceros funciones 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.

basic_fstream::swap(std::basic_fstream) (C++11)

 

bool is_open() const;

Comprueba si el flujo de archivos tiene un archivo asociado .

Original:

Checks if the file stream has an associated file.

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

Efectivamente llama rdbuf()->is_open() .

Original:

Effectively calls rdbuf()->is_open().

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

Parámetros

(Ninguno)

Original:

(none)

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

Valor de retorno

true si la secuencia de archivo tiene un archivo asociado, false lo contrario

Original:

true if the file stream has an associated file, false otherwise

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

Ver también

open	abre un archivo y lo asocia con la corriente Original: opens a file and associates it with the stream The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (miembro público función)
close	cierra el archivo asociado Original: closes the associated file The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (miembro público función)