Espacios de nombres
Variantes
Acciones

std::showpos, std::noshowpos

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< cpp | io | manip

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C++
 
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
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Streams
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Abstracciones
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Abstractions
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ios_base
basic_ios
basic_istream
basic_ostream
basic_iostream
File I / O
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File I/O
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basic_ifstream
basic_ofstream
basic_fstream
Cadena de I / O
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String I/O
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basic_istringstream
basic_ostringstream
basic_stringstream
Matriz I / O
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Array I/O
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istrstream(obsoleto)
ostrstream(obsoleto)
strstream(obsoleto)
Tipos
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Types
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streamoff
streamsize
fpos
Error interfaz categoría
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Error category interface
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iostream_category(C++11)
io_errc(C++11)
 
Entrada / salida manipuladores
De punto flotante de formato
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Floating-point formatting
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Formato Integer
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Integer formatting
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Formato booleano
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Boolean formatting
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boolalpha
noboolalpha
Ancho de campo y de control de llenado
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Field width and fill control
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Otros formatos
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Other formatting
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showpos
noshowpos
Los espacios en blanco de procesamiento
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Whitespace processing
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Salida de lavado
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Output flushing
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Indicadores de estado manipulación
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Status flags manipulation
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Tiempo y dinero I / O
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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>
std::ios_base& showpos( std::ios_base& str );
 (1)
std::ios_base& noshowpos( std::ios_base& str );
 (2)
Activa o desactiva la visualización de la '+' signo más en la no-negativo salida entero. No tiene ningún efecto sobre la entrada .
Original:
Enables or disables the display of the plus sign '+' in non-negative integer output. Has no effect on input.
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1)
permite a la bandera showpos en el str corriente como si se aplicase str.setf(std::ios_base::showpos)
Original:
enables the showpos flag in the stream str as if by calling str.setf(std::ios_base::showpos)
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2)
desactiva la bandera showpos en el str corriente como si se aplicase str.unsetf(std::ios_base::showpos)
Original:
disables the showpos flag in the stream str as if by calling str.unsetf(std::ios_base::showpos)
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Este es un manipulador de E / S, puede ser llamada con una expresión como out << std::showpos para cualquier out de std::basic_ostream tipo o con una expresión como in >> std::showpos 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::showpos for any out of type std::basic_ostream or with an expression such as in >> std::showpos 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>
int main()
{
        std::cout << "showpos: " << std::showpos << 42 << ' ' << 3.14 << ' ' << 0 << '\n'
                  << "noshowpos: " << std::noshowpos << 42 << ' ' << 3.14 << ' ' << 0 << '\n';
}

Output: 

showpos: +42 +3.14 +0
noshowpos: 42 3.14 0

[editar] Ver también
borra los indicadores ios_base especificados
Original:
clears the specified ios_base flags
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(función) [edit]
establece los indicadores de ios_base especificados
Original:
sets the specified ios_base flags
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(función) [edit]
Obtenido de «http://es.cppreference.com/mwiki/index.php?title=cpp/io/manip/showpos&oldid=21720»