When an operator appears in an expression, and at least one of its operands has a class type or an enumeration type, then overload resolution is used to determine the user-defined function to be called among all the functions whose signatures match the following: Note: for overloading user-defined conversion functions, user-defined literals, allocation and deallocation see their respective articles.Overloaded operators (but not the built-in operators) can be called using function notation: Other than the restrictions above, the language puts no other constraints on what the overloaded operators do, or on the return type (it does not participate in overload resolution), but in general, overloaded operators are expected to behave as similar as possible to the built-in operators: do the same addition-like operation).
Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. I am wondering if there is a better way anyone can recommend.
I feel like there should be, but have been unable to think of one or find one online.
Donc pour utiliser operator() sur un vecteur nomm vec, on ferra push_back(vec)(objet0)(objet1)(objet N); alors que sur une map, on utilisera insert (conteneur) (objet); Par dfaut, jusqu' 5 arguments sont supports par operator() mais il est possible de changer cela en dfinissant la macro BOOST_ASSIGN_MAX_PARAMS list_of: Contrairement a ce que l'on vu avant, list_of ne sert pas remplir un conteneur mais bien l'initialiser, c'est dire lui donner des valeurs de dpart.
Avec list_of, on crer une liste anonyme automatiquement convertie pour n'importe quel conteneur squentiel (vector,list,...) .
Usually you can pass any number of values to the constructor to initialize containers. Assign provides helper functions to add multiple values to an existing container.
Thanks to initializer lists, you don’t have to depend on Boost. These helper functions can be useful in C 11 development environments. You can call this operator multiple times to save values in the container.
Dank Initialisierungslisten sind Sie in C 11 nicht auf Boost. Diese Hilfsfunktionen können auch in einer C 11-Entwicklungsumgebung nützlich sein.
Im Beispiel 70.1 werden einige Funktionen vorgestellt, mit denen Container initialisiert werden können. Sie können diesen Operator mehrfach aufrufen, um Werte im Container zu speichern.
ptr_list_of: La seule diffrence avec son homologue est en cas d'utilisation avec un adaptateur de conteneur, l il faut passer le conteneur en paramtre to_adapter. Voyons tout de suite ce que peut donner cette bibliothque. En effet, votre vecteur attend (et donc list_of) attend des objets de type S. Mais il faut savoir elle risque de devenir obsolte avec les avances de C 0x dans ce domaine, comme le prouve cette vido, confrence de B. Enfin cette facilit actuelle est considre par certaines personnes , tort ou raison, comme de l'obfuscation.
Remerciements: Je tiens remercier Luc Hermitte ainsi que Alp pour leurs conseils et soutiens.
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