Espaces de noms
Variantes
Affichages
Actions

operator<<<div class="t-tr-text">(Std :: basic_ostream)<div class="t-tr-dropdown"><div><div><div class="t-tr-dropdown-arrow-border"></div><div class="t-tr-dropdown-arrow"></div><div class="t-tr-dropdown-h">Original:</div><div class="t-tr-dropdown-orig">(std::basic_ostream)</div><div class="t-tr-dropdown-notes">The text has been machine-translated via [http://translate.google.com Google Translate].<br/> You can help to correct and verify the translation. Click [http://en.cppreference.com/w/Cppreference:MachineTranslations here] for instructions.</div></div></div></div></div>

De cppreference.com
< cpp‎ | io‎ | basic ostream

This page has been machine-translated from the English version of the wiki using Google Translate.

The translation may contain errors and awkward wording. Hover over text to see the original version. You can help to fix errors and improve the translation. For instructions click here.

Click here for the English version of this page

 
C++
 
D'entrée / sortie de bibliothèque
I / O manipulateurs
C-style I / O
Tampons
Original:
Buffers
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
basic_streambuf
basic_filebuf
basic_stringbuf
strstreambuf (obsolète)
Cours d'eau
Original:
Streams
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Abstractions
Original:
Abstractions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
ios_base
basic_ios
basic_istream
basic_ostream
basic_iostream
Fichier E / O
Original:
File I/O
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
basic_ifstream
basic_ofstream
basic_fstream
Chaîne I / O
Original:
String I/O
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
basic_istringstream
basic_ostringstream
basic_stringstream
Tableau I / O
Original:
Array I/O
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
istrstream (obsolète)
ostrstream (obsolète)
strstream (obsolète)
Types
Original:
Types
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
streamoff
streamsize
fpos
Interface catégorie d'erreur
Original:
Error category interface
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
iostream_category (C++11)
io_errc (C++11)
 
std::basic_ostream
Les objets globaux
Original:
Global objects
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Les fonctions membres
Original:
Member functions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
basic_ostream::basic_ostream
basic_ostream::~basic_ostream
basic_ostream::operator= (C++11)
Entrée formaté
Original:
Formatted input
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
basic_ostream::operator<<
Entrée non formaté
Original:
Unformatted input
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
basic_ostream::put
basic_ostream::write
Positionnement
Original:
Positioning
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
basic_ostream::tellp
basic_ostream::seekp
Divers
Original:
Miscellaneous
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
basic_ostream::flush
basic_ostream::swap (C++11)
Classes de membres
Original:
Member classes
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
basic_ostream::sentry
Tiers fonctions
Original:
Non-member functions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
operator<<(std::basic_ostream)
 
template< class CharT, class Traits>

basic_ostream<CharT,Traits>& operator<<( basic_ostream<CharT,Traits>& os,
                                         CharT ch );
template< class CharT, class Traits>
basic_ostream<CharT,Traits>& operator<<( basic_ostream<CharT,Traits>& os,
                                         char ch );
template< class Traits >
basic_ostream<char,Traits>& operator<<( basic_ostream<char,Traits>& os,
                                        char ch );
template< class Traits >
basic_ostream<char,Traits>& operator<<( basic_ostream<char,Traits>& os,
                                        signed char ch );
template< class Traits >
basic_ostream<char,Traits>& operator<<( basic_ostream<char,Traits>& os,

                                        unsigned char ch );
 (1)
template< class CharT, class Traits >

basic_ostream<CharT,Traits>& operator<<( basic_ostream<CharT,Traits>& os,
                                         const CharT* s );
template< class CharT, class Traits >
basic_ostream<CharT,Traits>& operator<<( basic_ostream<CharT,Traits>& os,
                                         const char* s );
template< class Traits >
basic_ostream<char,Traits>& operator<<( basic_ostream<char,Traits>& os,  
                                        const char* s );
template< class Traits >
basic_ostream<char,Traits>& operator<<( basic_ostream<char,Traits>& os,
                                        const signed char* s );
template< class Traits >
basic_ostream<char,Traits>& operator<<( basic_ostream<char,traits>& os,

                                        const unsigned char* s );
 (2)
template< class CharT, class Traits, class T >

basic_ostream< charT, traits >& operator<<( basic_ostream<CharT,Traits>&& os,

                                            const T& value );
 (3) (depuis C++11)
Insère un caractère ou une chaîne de caractères .
Original:
Inserts a character or a character string.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
1-2)
sont formatés fonctions de sortie: ils commencent l'exécution par la construction d'un objet de sentry type, qui vide les tampons de sortie tie()'d si nécessaire et vérifie les erreurs de flux. Après la construction, si les rendements objet sentinelle false, ces fonctions renvoient sans tenter aucune sortie. Si une erreur se produit lors de la sortie, ces fonctions setstate(ios_base::failbit) appeler. Si une exception est levée lors de la sortie, puis ios :: BadBit est activé (l'exception est supprimée, sauf exceptions()&badbit) != 0, auquel cas il est relancée)
Original:
are formatted output functions: they begin execution by constructing an object of type sentry, which flushes the tie()'d output buffers if necessary and checks the stream errors. After construction, if the sentry object returns false, these functions return without attempting any output. If an error occurs during output, these functions call setstate(ios_base::failbit). If an exception is thrown during output, then ios::badbit is set (the exception is suppressed unless exceptions()&badbit) != 0, in which case it is rethrown)
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
1)
Insère un caractère ch. Si le type de caractère n'est pas CharT, il est tout d'abord converti en os.widen(ch). Le remplissage est déterminé comme si au stade 3 de num_put::put(). Après l'insertion, width(0) est appelé .
Original:
Inserts a character ch. If the type of the character is not CharT, it is first converted with os.widen(ch). Padding is determined as if by Stage 3 of num_put::put(). After insertion, width(0) is called.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
2)
Insère des caractères successifs du tableau de caractères dont le premier élément est pointé par s .
Original:
Inserts successive characters from the character array whose first element is pointed to by s.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
  • pour les surcharges premier et troisième (où CharT correspond au type de ch), exactement traits::length(s) caractères sont insérés .
    Original:
    for the first and third overloads (where CharT matches the type of ch), exactly traits::length(s) characters are inserted.
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
  • pour la deuxième surcharge, exactement std::char_traits<char>::length(s) caractères sont insérés .
    Original:
    for the second overload, exactly std::char_traits<char>::length(s) characters are inserted.
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
  • pour les deux dernières surcharges, exactement traits::length(reinterpret_cast<const char*>(s)) sont insérés .
    Original:
    for the last two overloads, exactly traits::length(reinterpret_cast<const char*>(s)) are inserted.
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
Le remplissage est déterminé comme si au stade 3 de num_put::put(). Tous les caractères sont élargies à l'aide os.widen() avant l'insertion. Après l'insertion, width(0) est appelé .
Original:
Padding is determined as if by Stage 3 of num_put::put(). All characters are widened using os.widen() before insertion. After insertion, width(0) is called.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
3)
Appelle l'opérateur d'insertion approprié, compte tenu d'une référence rvalue à un objet flux de sortie (équivalent à os << value) .
Original:
Calls the appropriate insertion operator, given an rvalue reference to an output stream object (equivalent to os << value).
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

Sommaire

[modifier] Paramètres

os -
flux de sortie d'insérer les données
Original:
output stream to insert data to
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
ch -
une référence à un caractère à insérer
Original:
reference to a character to insert
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
s -
pointeur vers une chaîne de caractères à insérer
Original:
pointer to a character string to insert
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

[modifier] Retourne la valeur

st

[modifier] Exemple

#include <iostream>
#include <sstream>
int main()
{
    std::cout << "Hello, world" // the const char* overlaod
              << '\n';          // the char overload
    std::string s = (std::ostringstream() << 1.2).str(); // rvalue overload
    std::cout << s << '\n';
}

Résultat : 

Hello, world
1.2

[modifier] Voir aussi
inserts en forme des données
Original:
inserts formatted data
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) [edit]
Récupérée de « https://fr.cppreference.com/mwiki/index.php?title=cpp/io/basic_ostream/operator_ltlt2&oldid=48274 »