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std::showpoint, std::noshowpoint

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< cpp‎ | io‎ | manip

 
 
Input / Output-Bibliothek
I / O-Manipulatoren
C-style I / O
Puffern
Original:
Buffers
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basic_streambuf
basic_filebuf
basic_stringbuf
strstreambuf(veraltet)
Streams
Original:
Streams
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Abstraktionen
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Abstractions
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ios_base
basic_ios
basic_istream
basic_ostream
basic_iostream
Datei-I / O
Original:
File I/O
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basic_ifstream
basic_ofstream
basic_fstream
String I / O
Original:
String I/O
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basic_istringstream
basic_ostringstream
basic_stringstream
Array I / O
Original:
Array I/O
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istrstream(veraltet)
ostrstream(veraltet)
strstream(veraltet)
Types
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Types
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streamoff
streamsize
fpos
Fehler Kategorie Schnittstelle
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Error category interface
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iostream_category(C++11)
io_errc(C++11)
 
Eingang / Ausgang Manipulatoren
Gleitkomma-Formatierung
Original:
Floating-point formatting
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showpoint
noshowpoint
setprecision
Integer-Formatierung
Original:
Integer formatting
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Boolean Formatierung
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Boolean formatting
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boolalpha
noboolalpha
Feldbreite und fill Kontrolle
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Field width and fill control
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Andere Formatierungen
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Other formatting
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Whitespace-Verarbeitung
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Whitespace processing
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Output Spülung
Original:
Output flushing
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Statusflags Manipulation
Original:
Status flags manipulation
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Zeit und Geld 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>
std::ios_base& showpoint( std::ios_base& str );
(1)
std::ios_base& noshowpoint( std::ios_base& str );
(2)
Aktiviert oder deaktiviert die bedingungslose Aufnahme des Dezimalzeichen in Floating-Point-Leistung. Hat keine Auswirkung auf Eingang .
Original:
Enables or disables the unconditional inclusion of the decimal point character in floating-point output. Has no effect on input.
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1)
ermöglicht die showpoint Flagge in den Strom str, als ob durch den Aufruf str.setf(std::ios_base::showpoint)
Original:
enables the showpoint flag in the stream str as if by calling str.setf(std::ios_base::showpoint)
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2)
deaktiviert die showpoint Flagge in den Strom str, als ob durch den Aufruf str.unsetf(std::ios_base::showpoint)
Original:
disables the showpoint flag in the stream str as if by calling str.unsetf(std::ios_base::showpoint)
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Dies ist ein I / O-Manipulators, kann es mit einem Expressionsvektor wie out << std::showpoint für jede out vom Typ std::basic_ostream oder mit einem Expressionsvektor wie in >> std::showpoint 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::showpoint for any out of type std::basic_ostream or with an expression such as in >> std::showpoint for any in of type std::basic_istream.
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Inhaltsverzeichnis

[Bearbeiten] Parameter

str -
Verweisen auf I / O-Strom
Original:
reference to I/O stream
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[Bearbeiten] Rückgabewert

str (Verweis auf den Stream nach Manipulation)
Original:
str (reference to the stream after manipulation)
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[Bearbeiten] Beispiel

#include <iostream>
int main()
{
    std::cout << "1.0 with showpoint: " << std::showpoint << 1.0 << '\n'
              << "1.0 with noshowpoint: " << std::noshowpoint << 1.0 << '\n';
}

Output:

1.0 with showpoint: 1.00000
1.0 with noshowpoint: 1

[Bearbeiten] Siehe auch

löscht die angegebene ios_base Fahnen
Original:
clears the specified ios_base flags
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(Funktion) [edit]
Legt die angegebene ios_base Fahnen
Original:
sets the specified ios_base flags
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(Funktion) [edit]