c调用有参回调函数

时间:2022-09-27 18:59:33

***********************无参回调函数*************************

void callback_fun()

{
printf("this call back function have not arguments.\n");
}


void call(void (*fp)())
{

//两种调用方式

fp();
//(*fp)();
}


int main()
{
call(callback_fun);
}

==================================
输出结果:

this call back function have not arguments.


***********************带参数的回调函数*************************

void callback_fun(int arg)

{
printf("the call back function arg is:%d\n", arg);
}


void call(void (*fp)(int), int arg)
{
(*fp)(arg);
}


int main()
{
call(callback_fun, 8);
}

==================================
输出结果:

the call back function arg is:8