std::dec, std::hex, std::oct
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<metanoindex/>
<tbody> </tbody>| definiert in Header <ios>
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std::ios_base& dec( std::ios_base& str ); |
(1) | |
std::ios_base& hex( std::ios_base& str ); |
(2) | |
std::ios_base& oct( std::ios_base& str ); |
(3) | |
Ändert die standardmäßige numerische Basis für Integer-I / O
Original:
Modifies the default numeric base for integer I/O
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1)
setzt die
basefield des Baches str um dec, als ob durch den Aufruf 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)The text has been machine-translated via Google Translate.
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2)
setzt die
basefield des Baches str um hex, als ob durch den Aufruf 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)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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3)
setzt die
basefield des Baches str um oct, als ob durch den Aufruf 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)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::hex für jede out vom Typ std::basic_ostream oder mit einem Expressionsvektor wie in >> std::hex 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::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.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 <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
Siehe auch
ändert sich die Basis für die ganze I / O verwendet Original: changes the base used for integer I/O The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (Funktion) | |
steuert, ob Präfix verwendet wird, um numerische Basis anzugeben Original: controls whether prefix is used to indicate numeric base The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (Funktion) | |
