C++中指针函数与函数指针的使用

/** 指针函数，返回int* 指针变量*/int* add(int a, int b){ int *p; int c = a + b; p = &c; return p;}int main(){ int* p; p = add(1, 4); printf("%d/n", *p); getchar(); return 1;}

/** 函数指针，调用函数*/int fun1(int a, int b){ return a + b;}int main(){ int(*p)(int, int); p = fun1; printf("%d/n", p(1, 5)); getchar(); return 1;}

/** 函数指针，最为参数*/int fun2(int a, int b){ return a + b;}int fun3(int a, int b, int(*f)(int, int)){ return f(a, b);}int main(){ printf("%d/n", fun3(1, 5, fun2)); getchar(); return 1;}