Espaces de noms
Variantes
Affichages
Actions

std::getline

De cppreference.com
< cpp‎ | string‎ | basic string


 
 
Bibliothèque de chaînes de caractères
Chaînes à zéro terminal
Original:
Null-terminated strings
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Les chaînes d'octets
Chaines multi-octets
Les chaînes étendues
Classes
Original:
Classes
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
basic_string
char_traits
 
std::basic_string
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_string::basic_string
basic_string::operator=
basic_string::assign
basic_string::get_allocator
Elément d'accès
Original:
Element access
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
basic_string::at
basic_string::operator[]
basic_string::front (C++11)
basic_string::back (C++11)
basic_string::data
basic_string::c_str
Les itérateurs
Original:
Iterators
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
basic_string::begin
basic_string::cbegin

(C++11)
basic_string::end
basic_string::cend

(C++11)
basic_string::rbegin
basic_string::crbegin

(C++11)
basic_string::rend
basic_string::crend

(C++11)
Capacité
Original:
Capacity
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
basic_string::empty
basic_string::size
basic_string::length
basic_string::max_size
basic_string::reserve
basic_string::capacity
basic_string::shrink_to_fit (C++11)
Opérations
Original:
Operations
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
basic_string::clear
basic_string::insert
basic_string::erase
basic_string::push_back
basic_string::pop_back (C++11)
basic_string::append
basic_string::operator+=
basic_string::compare
basic_string::replace
basic_string::substr
basic_string::copy
basic_string::resize
basic_string::swap
Recherche
Original:
Search
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
basic_string::find
basic_string::rfind
basic_string::find_first_of
basic_string::find_first_not_of
basic_string::find_last_of
basic_string::find_last_not_of
Constantes
Original:
Constants
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
basic_string::npos
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+
operator==
operator!=
operator<
operator>
operator<=
operator>=
swap(std::basic_string)
operator<<
operator>>
getline
stoi
stol
stoll
(C++11)
(C++11)
(C++11)
stoul
stoull
(C++11)
(C++11)
stof
stod
stold
(C++11)
(C++11)
(C++11)
to_string (C++11)
to_wstring (C++11)
Classes d'aide
Original:
Helper classes
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
hash<std::string>
hash<std::wstring>
hash<std::u32string>
hash<std::u16string>
(C++11)
 
Defined in header <string>
template< class CharT, class Traits, class Allocator >

std::basic_istream<CharT,Traits>& getline( std::basic_istream<CharT,Traits>& input,
                                           std::basic_string<CharT,Traits,Allocator>& str,

                                           CharT delim );
(1)
template< class CharT, class Traits, class Allocator >

std::basic_istream<CharT,Traits>& getline( std::basic_istream<CharT,Traits>&& input,
                                           std::basic_string<CharT,Traits,Allocator>& str,

                                           CharT delim );
(1) (depuis C++11)
template< class CharT, class Traits, class Allocator >

std::basic_istream<CharT,Traits>& getline( std::basic_istream<CharT,Traits>& input,

                                           std::basic_string<CharT,Traits,Allocator>& str );
(2)
template< class CharT, class Traits, class Allocator >

std::basic_istream<CharT,Traits>& getline( std::basic_istream<CharT,Traits>&& input,

                                           std::basic_string<CharT,Traits,Allocator>& str );
(2) (depuis C++11)
getline lit les caractères à partir d'un flux d'entrée et les place dans une chaîne:
Original:
getline reads characters from an input stream and places them into a string:
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
1)
Se comporte comme UnformattedInputFunction, sauf que input.gcount() n'est pas affectée. Après la construction et la vérification de l'objet sentinelle, effectue les opérations suivantes:
Original:
Behaves as UnformattedInputFunction, except that input.gcount() is not affected. After constructing and checking the sentry object, performs the following:
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
1)
Appels str.erase()
Original:
Calls str.erase()
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
2)
Extrait les caractères de input et les ajoute à str jusqu'à ce qu'un des événements suivants se produit (vérifié dans l'ordre indiqué)
Original:
Extracts characters from input and appends them to str until one of the following occurs (checked in the order listed)
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
a)
fin-de-fichier sur la situation input, dans ce cas, getline ensembles eofbit et retours .
Original:
end-of-file condition on input, in which case, getline sets eofbit and returns.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
b)
le caractère d'entrée suivant est disponible delim, telle que mesurée par Traits::eq(c, delim), dans ce cas, le caractère de délimitation est extrait de input, mais n'est pas ajouté à str .
Original:
the next available input character is delim, as tested by Traits::eq(c, delim), in which case the delimiter character is extracted from input, but is not appended to str.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
c)
str.max_size() caractères ont été stockés, dans ce cas, getline ensembles failbit et retours .
Original:
str.max_size() characters have been stored, in which case getline sets failbit and returns.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
3)
Si aucun caractère ont été extraites pour une raison quelconque (même pas jeté le délimiteur), getline ensembles failbit et retours .
Original:
If no characters were extracted for whatever reason (not even the discarded delimiter), getline sets failbit and returns.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
2)
Même que getline(input, str, input.widen(’\n’)), soit le délimiteur par défaut est le caractère fin de ligne .
Original:
Same as getline(input, str, input.widen(’\n’)), that is, the default delimiter is the endline character.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

[modifier] Paramètres

input -
le flux pour obtenir les données
Original:
the stream to get data from
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
str -
la chaîne pour mettre les données
Original:
the string to put the data into
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
delim -
le caractère délimiteur
Original:
the delimiter character
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

input

[modifier] Exemple

Le code suivant demande à l'utilisateur son nom, puis les salue l'aide de ce nom .
Original:
The following code asks the user for their name, then greets them using that name.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

#include <string>
#include <iostream>
 
int main()
{
    std::string name;
    std::cout << "What is your name? ";
    std::getline(std::cin, name);
    std::cout << "Hello " << name << ", nice to meet you.";
}

Résultat possible :

What is your name? John Q. Public
Hello John Q. Public, nice to meet you.