class bar { public: // If you want to store a pointer to each type of function you'll // need two different pointers here: void (*freeFunctionPointer)(); void (foo::*memberFunctionPointer)(); }; class foo { public: bar myBar; void hello(){ cout << "hello" << endl; } }; ...
Just like pointers to normal variables and functions, we can have C++ pointers to class member functions and member variables. Tutorial to learn Pointer to Members
class Car { public: int speed; }; int main() { int Car::*pSpeed = &Car::speed; return 0; } Why does C++ have this pointer to a non-static data member of a class? What is the use of this strange pointer in real code?c++...
The result of the.*or->*pointer-to-member operators is an object or function of the type specified in the declaration of the pointer to member. So, in the preceding example, the result of the expressionADerived.*pmfnFunc1()is a pointer to a function that returnsvoid. This result is an...
参考资料: http://stackoverflow.com/questions/3050805/pointer-to-const-member-function-typedef http://www.cplusplus.com/reference/functional/mem_fun1_t/ http://www.cnblogs.com/taobataoma/archive/2007/08/30/875743.html http://www.cplusplus.com/reference/functional/mem_fun/ ...
4、Pointer to member function.成员函数指针。5、Pointer to member.指向成员的指针。6、The decorated naming convention for pointers to member functions was changed in visual c version 4.0.4.0版中对指向成员函数的指针的修饰命名约定进行了更改。7、It's difficult to see pointer to member ...
every C++ programmer are pointer to member functions (ptmf).ptmfs are diffent than their C counterparts - function pointers (fp). Using function pointers in C is a common practice and gives the programmer a powerful technique for a good pice of software. When used correctly,fps can help to...
Raw pointers don't have member functions, so C++ programmers' eyes are not habituated to detect and distinguish dot calls from arrow calls. The compiler does a good job at that: If you use a dot after a raw pointer, the compiler will yield an error. Therefore, it is easy to imagine,...
Initialization of function pointer in C: We have already discussed that a function pointer is similar to normal pointers. So after the declaration of a function pointer, we need to initialize it like normal pointers. A function pointer is initialized to the address of a function but the signatu...
intn;int*p=&n;// pointer p is pointing to n*p=7;// stores 7 in nprintf("%d\n",*p);// lvalue-to-rvalue conversion reads the value from n Pointers to objects ofstructanduniontype may also appear as the left-hand operands of themember access through pointeroperator->. ...