Boost Assign

Boost Assign-26
Obwohl Sie dabei auf ein anderes Objekt und nicht auf den Container zugreifen, ändern Sie durch den Proxy den Container. Assign provides helper functions to initialize containers or add elements to containers.Dank Initialisierungslisten sind Sie in C 11 nicht auf Boost. Diese Hilfsfunktionen können auch in einer C 11-Entwicklungsumgebung nützlich sein.

If the value type is known to be a built-in type, the const variant should return by value.

Where direct access to the elements of the container is not wanted or not possible or distinguishing between lvalue , operator[] has to return a reference to a 2D plane, which has to have its own operator[] which returns a reference to a 1D row, which has to have operator[] which returns a reference to the element.

Enfin range permet d'insrer un intervalle d'itrateur voire un conteneur en entier (dans ce cas l'intervalle ira de begin() end() ) ref_list_of permet de crer trs rapidement un intervalle anonyme partir de diffrentes variables. cref_list_of() fait la mme chose que ref_list_of() , l'attribut const en plus.

ptr_push_back, ptr_push_front, ptr_insert and ptr_map_insert ont le mme rle que leurs homologues, sauf qu'elles travaillent avec des pointeurs et ont une rsistance aux exceptions. Ainsi le code devient: qui pour but de vous simplifier la vie en vous rendant la tche d'affectation plus facile.

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).These functions are especially helpful if many elements need to be stored in a container. Assign, you don’t need to call a member function like repeatedly to insert elements one by one into a container.If you work with a development environment that supports C 11, you can benefit from initializer lists.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.I wrote the code in C and am using the Boost libraries.Okay so inside my Archer Armor.cpp, I'm trying to figure out why the map initializer list isn't working, but for some reason I keep getting "Error C2593: 'operator =' is ambiguous".operator = Il permet de remplir un conteneur de faon intuitive en faisant conteneur =valeur0,valeur1,valeurn ; operator() Inversement operator =() que l'on appelait directement sur le conteneur, on va passer par un objet proxy pour utiliser operator()().La fonction pouvant utiliser operator() sur un conteneur tire son nom d'aprs la fonction membre d'insertion dans le conteneur.// operator = // 优点: 可应用与stl中定义的标准容器(vector, list, set, map等) // 缺点: 对于其他类型的容器(如boost新容器)则无能为力 void test_assign_plus() // operator() // 优点: operator =使用上有些小的限制,而且在处理map容器也显麻烦,操作符operator()更通用.// 不能直接使用operator(), 而应当使用assign库提供三个辅助函数insert(),push_front(),push_back().


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