class SomeClass {
public:
void some_member_func(int x, char *p) {
printf("In SomeClass"); };
};
class DerivedClass : public SomeClass {
public:
// If you uncomment the next line, the code at line (*) will fail!
// void some_member_func(int x, char *p) { printf("In DerivedClass"); };
};
int main() {
// Declare a member function pointer for SomeClass
typedef void (SomeClass::*SomeClassMFP)(int, char *);
SomeClassMFP my_memfunc_ptr;
my_memfunc_ptr = &DerivedClass::some_member_func; // ---- line (*)
DerivedClass *dc;
dc->*my_memfunc_ptr(1,"");
}
struct X {
int foo() { return 0; }
} x;
struct Y
{
static int (X::*p)();
};
int (X::*Y::p)()=&X::foo;
int main(int argc, char *argv[])
{
printf("Hello, world\n");
(x.*Y::p)();
// (x->*Y::p)();
// (Y::p)(x);
// (Y::x.*p)();
// (x.Y::p)();
return 0;
}
原文链接: https://www.cnblogs.com/cutepig/archive/2011/02/17/1956804.html
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