Espacios de nombres
Variantes
Acciones

std::dec, std::hex, std::oct

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< cpp‎ | io‎ | manip

 
 
Entrada / salida de la biblioteca
I / O manipuladores
C-estilo I / O
Buffers
Original:
Buffers
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basic_streambuf
basic_filebuf
basic_stringbuf
strstreambuf(obsoleto)
Arroyos
Original:
Streams
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Abstracciones
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
Cadena de I / O
Original:
String I/O
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basic_istringstream
basic_ostringstream
basic_stringstream
Matriz I / O
Original:
Array I/O
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istrstream(obsoleto)
ostrstream(obsoleto)
strstream(obsoleto)
Tipos
Original:
Types
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streamoff
streamsize
fpos
Error interfaz categoría
Original:
Error category interface
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iostream_category(C++11)
io_errc(C++11)
 
Entrada / salida manipuladores
De punto flotante de formato
Original:
Floating-point formatting
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Formato Integer
Original:
Integer formatting
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dec
hex
oct
Formato booleano
Original:
Boolean formatting
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boolalpha
noboolalpha
Ancho de campo y de control de llenado
Original:
Field width and fill control
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Otros formatos
Original:
Other formatting
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Los espacios en blanco de procesamiento
Original:
Whitespace processing
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Salida de lavado
Original:
Output flushing
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Indicadores de estado manipulación
Original:
Status flags manipulation
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Tiempo y dinero I / O
Original:
Time and money I/O
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get_money(C++11)
get_time(C++11)
put_money(C++11)
put_time(C++11)
 
Defined in header <ios>
(1)
(2)
(3)
Modifica la base numérica predeterminada para el número entero I / O
Original:
Modifies the default numeric base for integer I/O
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1)
establece el basefield del str corriente a dec como si se aplicase str.setf(std::ios_base::dec, std::ios_base::basefield)
Original:
sets the basefield of the stream str to dec as if by calling str.setf(std::ios_base::dec, std::ios_base::basefield)
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2)
establece el basefield del str corriente a hex como si se aplicase str.setf(std::ios_base::hex, std::ios_base::basefield)
Original:
sets the basefield of the stream str to hex as if by calling str.setf(std::ios_base::hex, std::ios_base::basefield)
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3)
establece el basefield del str corriente a oct como si se aplicase str.setf(std::ios_base::oct, std::ios_base::basefield)
Original:
sets the basefield of the stream str to oct as if by calling str.setf(std::ios_base::oct, std::ios_base::basefield)
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Este es un manipulador de E / S, puede ser llamada con una expresión como out << std::hex para cualquier out de std::basic_ostream tipo o con una expresión como in >> std::hex para cualquier in de std::basic_istream tipo .
Original:
This is an I/O manipulator, it may be called with an expression such as out << std::hex for any out of type std::basic_ostream or with an expression such as in >> std::hex for any in of type std::basic_istream.
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Contenido

[editar] Parámetros

str -
referencia a la secuencia de E / S
Original:
reference to I/O stream
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[editar] Valor de retorno

str (referencia a la corriente después de la manipulación)
Original:
str (reference to the stream after manipulation)
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[editar] Ejemplo

#include <iostream>
#include <sstream>
int main()
{
    std::cout << "The number 42 in octal:   " << std::oct << 42 << '\n'
              << "The number 42 in decimal: " << std::dec << 42 << '\n'
              << "The number 42 in hex:     " << std::hex << 42 << '\n';
    int n;
    std::istringstream("2A") >> std::hex >> n;
    std::cout << std::dec << "Parsing \"2A\" as hex gives " << n << '\n';
}

Output:

The number 42 in octal:   52
The number 42 in decimal: 42
The number 42 in hex:     2a
Parsing "2A" as hex gives 42

[editar] Ver también

cambia la base utilizada para el número entero de I / O
Original:
changes the base used for integer I/O
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(función) [edit]
controla si prefijo se utiliza para indicar la base numérica
Original:
controls whether prefix is used to indicate numeric base
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(función) [edit]