std::showbase, std::noshowbase
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<metanoindex/>
<tbody> </tbody>| definiert in Header <ios>
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std::ios_base& showbase( std::ios_base& str ); |
(1) | |
std::ios_base& noshowbase( std::ios_base& str ); |
(2) | |
1)
ermöglicht die
showbase Flagge in den Strom str, als ob durch den Aufruf str.setf(std::ios_base::showbase)Original:
enables the
showbase flag in the stream str as if by calling str.setf(std::ios_base::showbase)The text has been machine-translated via Google Translate.
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2)
deaktiviert die
showbase Flagge in den Strom str, als ob durch den Aufruf str.unsetf(std::ios_base::showbase)Original:
disables the
showbase flag in the stream str as if by calling str.unsetf(std::ios_base::showbase)The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
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Dies ist ein I / O-Manipulators, kann es mit einem Expressionsvektor wie
out << std::showbase für jede out vom Typ std::basic_ostream oder mit einem Expressionsvektor wie in >> std::showbase für jede in vom Typ std::basic_istream aufgerufen werden .Original:
This is an I/O manipulator, it may be called with an expression such as
out << std::showbase for any out of type std::basic_ostream or with an expression such as in >> std::showbase for any in of type std::basic_istream.The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
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Parameter
| str | - | Verweisen auf I / O-Strom
Original: reference to I/O stream The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
Rückgabewert
str (Verweis auf den Stream nach Manipulation)Original:
str (reference to the stream after manipulation)The text has been machine-translated via Google Translate.
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Beispiel
#include <sstream>
#include <locale>
#include <iostream>
#include <iomanip>
int main()
{
// showbase affects the output of octals and hexadecimals
std::cout << std::hex
<< "showbase: " << std::showbase << 42 << '\n'
<< "noshowbase: " << std::noshowbase << 42 << '\n';
// and both input and output of monetary values
std::locale::global(std::locale("en_US.utf8"));
long double val = 0;
std::istringstream is("3.14");
is >> std::showbase >> std::get_money(val);
std::cout << "With showbase, parsing 3.14 as money gives " << val << '\n';
is.seekg(0);
is >> std::noshowbase >> std::get_money(val);
std::cout << "Without showbase, parsing 3.14 as money gives " << val << '\n';
}
Output:
showbase: 0x2a
noshowbase: 2a
With showbase, parsing 3.14 as money gives 0
Without showbase, parsing 3.14 as money gives 314
Siehe auch
löscht die angegebene ios_base Fahnen Original: clears the specified ios_base flags The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (Funktion) | |
Legt die angegebene ios_base Fahnen Original: sets the specified ios_base flags The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (Funktion) | |
