std::basic_stringbuf::basic_stringbuf
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<metanoindex/>
<tbody> </tbody> explicit basic_stringbuf(std::ios_base::openmode which = std::ios_base::in | std::ios_base::out); |
(1) | |
explicit basic_stringbuf (const std::basic_string<CharT, traits, Allocator>& new_str, std::ios_base::openmode which = std::ios_base::in | std::ios_base::out); |
(2) | |
basic_stringbuf(const basic_stringbuf& rhs) = delete; |
(3) | |
basic_stringbuf(basic_stringbuf&& rhs); |
(4) | (seit C++11) |
1)
Erzeugt ein
std::basic_stringbuf Objekt: initialisiert die Basisklasse durch Aufruf des Default-Konstruktor der std::basic_streambuf, initialisiert die Zeichenfolge mit einer leeren Zeichenfolge und setzt den Modus auf which .Original:
Constructs a
std::basic_stringbuf object: initializes the base class by calling the default constructor of std::basic_streambuf, initializes the character sequence with an empty string, and sets the mode to which.The text has been machine-translated via Google Translate.
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2)
Konstruiert eine
std::basic_stringbuf Objekts indem dasselbe Initialisierung wie 1), durch Initialisierung der zugehörigen Zeichensequenz wie von anrufenden str (new_str)
gefolgt .Original:
str(new_str)
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Original:
Constructs a
std::basic_stringbuf object by performing the same initialization as 1), followed by initializing the associated character sequence as if by calling str (new_str)
.Original:
str(new_str)
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3)
Der Copy-Konstruktor wird gestrichen;
std::basic_stringbuf nicht CopyConstructibleOriginal:
The copy constructor is deleted;
std::basic_stringbuf is not CopyConstructibleThe text has been machine-translated via Google Translate.
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4)
Move-baut eine
std::basic_stringbuf Objekt, indem alle staatlichen anderen std::basic_stringbuf Objekt rhs, einschließlich der zugehörigen String, der offenen Modus, der locale, und alle anderen Zustand. Nach dem Verschieben werden die sechs Zeiger std::basic_streambuf in *this garantiert unterschiedlich von den entsprechenden Zeigern in der eingefahrenen aus rhs sofern null .Original:
Move-constructs a
std::basic_stringbuf object by moving all state from another std::basic_stringbuf object rhs, including the associated string, the open mode, the locale, and all other state. After the move, the six pointers of std::basic_streambuf in *this are guaranteed to be different from the corresponding pointers in the moved-from rhs unless null.The text has been machine-translated via Google Translate.
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Parameter
| new_str | - | ein
basic_string verwendet, um den Puffer zu initialisieren Original: a basic_string used to initialize the buffer The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| rhs | - | anderen
basic_stringbuf Original: another basic_stringbuf The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| mode | - | legt Stream offenen Modus. Es ist Bitmaske Typ sind die folgenden Konstanten definiert:
Original: specifies stream open mode. It is bitmask type, the following constants are defined:
The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Notes
Typischerweise vom Konstruktor std::basic_stringstream genannt .
Original:
Typically called by the constructor of std::basic_stringstream.
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Die Höhe der Unterstützung für den offenen Modi außer std::ios_base::in und std::ios_base::out variiert zwischen Implementierungen. C + 11 explizit die Unterstützung für std::ios_base::ate in
str() und in diesem Konstruktor, aber std::ios_base::app, std::ios_base::trunc und std::ios_base::binary haben unterschiedliche Auswirkungen auf verschiedene Implementierungen .Original:
The level of support for the open modes other than std::ios_base::in and std::ios_base::out varies among implementations. C++11 explicitly specifies the support for std::ios_base::ate in
str() and in this constructor, but std::ios_base::app, std::ios_base::trunc, and std::ios_base::binary have different effects on different implementations.The text has been machine-translated via Google Translate.
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Beispiel
Veranschaulicht den Aufruf der Konstruktor basic_stringbuf direkt .
Original:
Demonstrates calling the constructor of basic_stringbuf directly.
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#include <iostream>
#include <sstream>
int main()
{
// default constructor (mode = in|out)
std::stringbuf buf1;
buf1.sputc('1');
std::cout << &buf1 << '\n';
// string constructor in at-end mode (C++11)
std::stringbuf buf2("test", std::ios_base::in
| std::ios_base::out
| std::ios_base::ate);
buf2.sputc('1');
std::cout << &buf2 << '\n';
// append mode test (results differ among compilers)
std::stringbuf buf3("test", std::ios_base::in
| std::ios_base::out
| std::ios_base::app);
buf3.sputc('1');
buf3.pubseekpos(1);
buf3.sputc('2');
std::cout << &buf3 << '\n';
}
Output:
1
test1
est12 (Sun Studio) 2st1 (GCC)
Siehe auch
baut die String-Stream Original: constructs the string stream The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (öffentliche Elementfunktion of std::basic_stringstream)
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