ES6 will almost certainly not cover syntax for defining class variables. Only methods and getters/setters can be defined using the class syntax. This means you’ll still have to go the MyClass.classVariable = 42; route for class variables. If you just want to initialize a class with some defaults, there is a rich new syntax set … Read more
You want this: typedef void (K::*MemFuncType)() const; If you want to still base MemFuncType on FuncType, you need to change FuncType: typedef void FuncType() const; typedef FuncType K::* MemFuncType;
If you’re using PowerShell 3.0/4.0 you can simplify your conversion using the ConvertFrom-Json cmdlet. Beyond that, if you have PS or .Net Object Types, the Add-Member cmdlet allows you to add arbitrary properties. The following shows how to add a property based on a Json block: $json = @” { “BlockA”: { “BlockB”: { “name”: … Read more
You cannot, at least it won’t be only a pointer to a function. Member functions are common for all instances of this class. All member functions have the implicit (first) parameter, this. In order to call a member function for a specific instance you need a pointer to this member function and this instance. class … Read more
Just specify explicitly what is the type of pictures: So instead of: let pictures = selectedRestaurant[“Pictures”] as! NSArray Write: let pictures: NSArray = selectedRestaurant[“Pictures”] as! NSArray
The rule is very simple: every object created with new must be destroyed exactly once with delete; every array created with new[] must be destroyed exactly once with delete[]; everything else must not be deleted. So your code is correct; you are deleting mc after creating it with new, and not deleting the members which … Read more
The initialization of non-static members could not be done like this prior to C++11. If you compile with a C++11 compiler, it should happily accept the code you have given. I imagine that the reason for not allowing it in the first place is because a data member declaration is not a definition. There is … Read more
Yes, your use of member function in initialization list is valid and complies with the standard. Data members are initialized in the order of their declaration (and that’s the reason why they should appear in the initialization list in the order of their declaration – the rule that you followed in your example). N_ is … Read more
In lieu of explicit initialization, initialization of members in classes works identically to initialization of local variables in functions. For objects, their default constructor is called. For example, for std::string, the default constructor sets it to an empty string. If the object’s class does not have a default constructor, it will be a compile error … Read more