call to member function on non object

Standard C ++ does not have real Object-Oriented function pointers. This is a pity, because Object-Oriented function pointers (sometimes called delegates) have proved their value in other languages. In Delphi (Object-Oriented PASCAL Language),

Abstract: This section describes how to obtain the member function address and call the address. Keyword: C ++ member function this pointer call Convention I. Usage of member function pointers In C ++, the pointer to a member function is special.

PHP static member variables and non-static member variables, php static. PHP static member variables and non-static member variables. php static data members can be divided into static variables and non-static variables. static Member: the static

Reading Notes Objective c ++ Item 23 would rather use non-member, non-friend functions than member functions. Objective tiveitem1. is non-member membership good or is the member function good? Imagine a class that represents a web browser. Such a

In this regard, let me begin by saying something about:The callback function must be a static member function or a global function to implement a callback function, presumably because a normal C + + member function implies a function parameter, the

Reading Notes Objective c ++ Item 24 if all parameters of a function require type conversion, declare the function as a non-member function. objective is a non-member function.1. If you declare a function that requires implicit type conversion as a

PHP static member variables and non-static member variables, php static Data members can be divided into static variables and non-static variables. Static member: A member in a static class is added with a static modifier, which is a static member.

C + + static member functions Like a data member, a member function can also be defined as static, and the preceding addition of a function in a class becomes a static member function. Such as static int volume (); As with static

Data members can be divided into static variables, non-static variables. This article mainly describes the PHP static member variables and non-static member variables, the need for friends can refer to the following Data members can be divided into

1 General class static member functions cannot call non-static member functions2 can a static member function call a constructor?The answer is yes, because the static member function does not have this pointer, the general static member function