Espaces de noms
Variantes

    std::basic_string::empty

    De cppreference.com
    See More

    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

    <metanoindex/>

     
    C++
     
    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)
     
    <tbody> </tbody>
    bool empty() const;
    Vérifie si la chaîne comporte pas de caractères, c'est à dire si begin() == end() .
    Original:
    Checks if the string has no characters, i.e. whether begin() == end().
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.

    Paramètres

    (Aucun)
    Original:
    (none)
    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

    true si la chaîne est vide, false autrement
    Original:
    true if the string is empty, false otherwise
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.

    Complexité

    Constante
    Original:
    Constant
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.

    Voir aussi

    		 returns the number of characters
    (fonction membre publique) [edit]