指向函数的指针

第一种类型:

 

int max(int a, int b)
{
    if (a >= b)
    {
        return a;
    }
    else
    {
        return b;
    }
}
typedef int(*getMax)(int, int);
getMax fn = max;
CCLog("max:%d", fn(1, 2));
CCLog("max:%d",(*fn)(1, 2));

 第二种类型:

 

  

class A
{
public:
    int max(int a, int b)
    {
        if (a >= b)
        {
            return a;
        }
        else
        {
            return b;
        }
    }
};
typedef int (A::*p)(int, int);
p func = &A::max;
A a;
CCLog("max:%d",(a.*func)(1, 3));