请问class成员函数指针怎么用??
本帖最后由 weiwuyuan 于 2013-03-10 15:30:42 编辑
class CTest
{
public:
CTest()
{
CommandFunc p = NULL;
p = Test;
p(10);
}
typedef int (CTest::*CommandFunc)(int a);
int Test(int a)
{
return a;
}
};
#include <iostream>
using namespace std;
class Testpm {
public:
void m_func1() { cout << "m_func1\n"; }
int m_num;
};
// Define derived types pmfn and pmd.
// These types are pointers to members m_func1() and
// m_num, respectively.
void (Testpm::*pmfn)() = &Testpm::m_func1;
int Testpm::*pmd = &Testpm::m_num;
int main() {
Testpm ATestpm;
Testpm *pTestpm = new Testpm;
// Access the member function
(ATestpm.*pmfn)();
(pTestpm->*pmfn)(); // Parentheses required since * binds
// less tightly than the function call.
// Access the member data
ATestpm.*pmd = 1;
pTestpm->*pmd = 2;
cout << ATestpm.*pmd << endl
<< pTestpm->*pmd << endl;
delete pTestpm;
}