function pointers

[shiftwik]

I can't seem to get the function pointers working?

anybody see what's wrong? I just want to call the print()method

#include "stdio.h"
class TMyClass
{
public:
void print(){ printf("Print!\n"); };
void (TMyClass::*pt2Member)();
TMyClass(void);
};
TMyClass::TMyClass(void)
{
pt2Member = &TMyClass::print;
};
int main(int argc, char* argv[])
{
TMyClass instance1;
instance1.pt2Member;
return 0;
}

[_Superman_]

To call a member function using pointers you have to use the pointer to member operators (.* or ->* or ::*). But declaring the function pointer inside the class is not very helpful. Usually the function pointer is declared outside the class like this -

void (TMyClass::*pt2Member)() = &TMyClass::print;

The above declaration may be done globally or inside the main function. In this case, the function call would be as follows -

TMyClass instance1;
(instance1.*pt2Member)();

If, however, you do wish to declare the pointer inside the class like you've done here, the calling syntax would be a little weird and would look like this -

TMyClass instance1;
(instance1.*instance1.pt2Member)();

«_Superman_»  _I love work. It gives me something to do between weekends.

_Microsoft MVP (Visual C++)

Polymorphism in C

[shiftwik]

you earned your title 'superman' thank you!!! works like a charm