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std::basic_istringstream::basic_istringstream

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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
Original:
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
Original:
Types
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streamoff
streamsize
fpos
Fehler Kategorie Schnittstelle
Original:
Error category interface
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iostream_category(C++11)
io_errc(C++11)
 
std::basic_istringstream
Member-Funktionen
Original:
Member functions
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basic_istringstream::basic_istringstream
basic_istringstream::operator=
basic_istringstream::swap
basic_istringstream::rdbuf
String-Operationen
Original:
String operations
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basic_istringstream::str
 
basic_istringstream( ios_base::openmode mode = ios_base::in );
(1)
basic_istringstream( const std::basic_string<CharT,Traits,Allocator>& str,
                     ios_base::openmode mode = ios_base::in );
(2)
basic_istringstream( basic_istringstream&& other );
(3) (seit C++11)
Konstruiert neuen String-Stream .
Original:
Constructs new string stream.
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1)
Konstruiert neuen zugrunde liegenden String-Gerät. Die zugrunde liegende basic_stringbuf Objekt wird als basic_stringbuf<Char,Traits,Allocator>(mode | ios_base::in). gebaut
Original:
Constructs new underlying string device. The underlying basic_stringbuf object is constructed as basic_stringbuf<Char,Traits,Allocator>(mode | ios_base::in).
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2)
Verwendet eine Kopie str als ursprünglichen Inhalt des zugrunde liegenden String-Gerät. Die zugrunde liegende basic_stringbuf Objekt wird als basic_stringbuf<Char,Traits,Allocator>(str, mode | ios_base::in). gebaut
Original:
Uses a copy of str as initial contents of the underlying string device. The underlying basic_stringbuf object is constructed as basic_stringbuf<Char,Traits,Allocator>(str, mode | ios_base::in).
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3)
Bewegen Konstruktor. Konstruiert den Datei-Stream mit dem Zustand der other mit move-Semantik .
Original:
Move constructor. Constructs the file stream with the state of other using move semantics.
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[Bearbeiten] Parameter

str -
String, der als ursprünglichen Inhalt des String-Stream verwenden
Original:
string to use as initial contents of the string stream
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mode -
legt Stream offenen Modus. Es ist Bitmaske Typ sind die folgenden Konstanten definiert:
Constant
Original:
Constant
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Explanation
app
versuchen Ende Strom vor jedem Schreibvorgang
Original:
seek to the end of stream before each write
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binary
Öffnen Sie im Binär-Modus
Original:
open in binary mode
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in
zum Lesen öffnen
Original:
open for reading
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out
zum Schreiben geöffnet
Original:
open for writing
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trunc
Verwerfen der Inhalt des Stroms beim Öffnen
Original:
discard the contents of the stream when opening
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ate
versuchen Ende Stromes unmittelbar nach geöffnet
Original:
seek to the end of stream immediately after open
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Original:
specifies stream open mode. It is bitmask type, the following constants are defined:
Constant
Original:
Constant
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Explanation
app
versuchen Ende Strom vor jedem Schreibvorgang
Original:
seek to the end of stream before each write
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binary
Öffnen Sie im Binär-Modus
Original:
open in binary mode
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in
zum Lesen öffnen
Original:
open for reading
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out
zum Schreiben geöffnet
Original:
open for writing
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trunc
Verwerfen der Inhalt des Stroms beim Öffnen
Original:
discard the contents of the stream when opening
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ate
versuchen Ende Stromes unmittelbar nach geöffnet
Original:
seek to the end of stream immediately after open
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other -
anderen String-Stream als Quelle zu verwenden
Original:
another string stream to use as source
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[Bearbeiten] Beispiel

#include <iostream>
#include <sstream>
int main()
{
    // default constructor (input/output stream)
    std::stringstream buf1;
    buf1 << 7;
    int n = 0;
    buf1 >> n;
    std::cout << "buf1 = " << buf1.str() << " n = " << n << '\n';
 
    // input stream
    std::istringstream inbuf("-10");
    inbuf >> n;
    std::cout << "n = " << n << '\n';
 
    // output stream in append mode (C++11)
    std::ostringstream buf2("test", std::ios_base::ate);
    buf2 << '1';
    std::cout << buf2.str() << '\n';
}

Output:

buf1 = 7 n = 7
n = -10
test1

[Bearbeiten] Siehe auch

Ruft den Inhalt der zugrunde liegenden String-Gerät Objekt
Original:
gets or sets the contents of underlying string device object
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(öffentliche Elementfunktion) [edit]
konstruiert eine basic_stringbuf Objekt
Original:
constructs a basic_stringbuf object
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(öffentliche Elementfunktion of std::basic_stringbuf) [edit]