std::basic_stringbuf::str
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<tbody> </tbody> std::basic_string<CharT, Traits, Allocator> str() const; |
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void str( const std::basic_string<CharT, Traits, Allocator>& s); |
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Obtient et dfinit la chane sous-jacente .
Original:
Gets and sets the underlying string.
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1)
Cre et retourne un objet std::basic_string contenant une copie de cette squence
std::basic_stringbuf le caractre sous-jacent. Pour l'entre-seulement les flux, la chane retourne contient les caractres de l'[eback(), egptr()) gamme. Pour les flux d'entre / sortie ou de sortie uniquement, contient les caractres de pbase() le dernier caractre de la squence indpendamment de egptr() et epptr() .Original:
Creates and returns a std::basic_string object containing a copy of this
std::basic_stringbuf's underlying character sequence. For input-only streams, the returned string contains the characters from the range [eback(), egptr()). For input/output or output-only streams, contains the characters from pbase() to the last character in the sequence regardless of egptr() and epptr().The text has been machine-translated via Google Translate.
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2)
Supprime la squence de caractres entier sous-jacente de cette
std::basic_stringbuf puis configure une nouvelle squence de caractres sous-jacent contenant une copie du contenu de s. Les pointeurs de std::basic_streambuf sont initialises comme suit:Original:
Deletes the entire underlying character sequence of this
std::basic_stringbuf and then configures a new underlying character sequence containing a copy of the contents of s. The pointers of std::basic_streambuf are initialized as follows:The text has been machine-translated via Google Translate.
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- Pour les flux d'entre (
mode & ios_base::in == true),eback()points au premier caractre,gptr() == eback()etegptr() == eback() + s.size(): l'entre suivante va lire le premier caractre copi partirs.Original:For input streams (mode & ios_base::in == true),eback()points at the first character,gptr() == eback(), andegptr() == eback() + s.size(): the subsequent input will read the first character copied froms.The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions. - Pour les flux de sortie (
mode & ios_base::out == true),pbase()points au premier caractre etepptr() >= pbase() + s.size()(epptr est autoris pointer loin pour que lesputc()suivante serait pas immdiatementoverflow())Original:For output streams (mode & ios_base::out == true),pbase()points at the first character andepptr() >= pbase() + s.size()(epptr is allowed to point farther so that the followingsputc()wouldn't immediately calloverflow())The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.- Pour les flux append (
mode & ios_base::ate == true),pptr() == pbase() + s.size(), de sorte que la sortie suivante sera ajout au dernier caractre copi partirs(depuis C++11)Original:For append streams (mode & ios_base::ate == true),pptr() == pbase() + s.size(), so that subsequent output will be appended to the last character copied froms(depuis C++11)The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions. - Pour aucun-ajout flux de sortie,
pptr() == pbase(), de sorte que la production subsquente crasera les caractres copis partirs.Original:For no-appending output streams,pptr() == pbase(), so that subsequent output will overwrite the characters copied froms.The text has been machine-translated via Google Translate.
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Paramtres
| s | - | un objet chane de caractres contenant la squence de caractres de remplacement
Original: a string object holding the replacement character sequence The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
Retourne la valeur
1)
Un objet chane contenant une copie de cette squence tampon de caractre sous-jacent .
Original:
A string object holding a copy of this buffer's underlying character sequence.
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2)
(Aucun)
Original:
(none)
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Notes
Cette fonction est gnralement accessible via
std::basic_stringstream::str() .Original:
This function is typically accessed through
std::basic_stringstream::str().The text has been machine-translated via Google Translate.
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Exemple
#include <sstream>
#include <iostream>
int main()
{
int n;
std::istringstream in; // could also use in("1 2")
in.rdbuf()->str("1 2"); // set the get area
in >> n;
std::cout << "after reading the first int from \"1 2\", the int is "
<< n << ", str() = \"" << in.rdbuf()->str() << "\"\n"; // or in.str()
std::ostringstream out("1 2");
out << 3;
std::cout << "after writing the int '3' to output stream \"1 2\""
<< ", str() = \"" << out.str() << "\"\n";
std::ostringstream ate("1 2", std::ios_base::ate); // C++11
ate << 3;
std::cout << "after writing the int '3' to append stream \"1 2\""
<< ", str() = \"" << ate.str() << "\"\n";
}
Rsultat :
after reading the first int from "1 2", the int is 1, str() = "1 2"
after writing the int '3' to output stream "1 2", str() = "3 2"
after writing the int '3' to append stream "1 2", str() = "1 23"
Voir aussi
obtient ou dfinit le contenu de l'objet chane de priphrique sous-jacent Original: gets or sets the contents of underlying string device object The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (fonction membre publique de std::basic_stringstream)
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