nested function pointer

Question

Can I do the test function here?

Answer 1

Hi, @명관 송
What test needs is a function pointer (which with void* function as a parameter). cc is actually not called.

snippet without error, output nothing:

#include<iostream>  
void cc(void (*pFunc)())  
{  
 std::cout << "1" << std::endl;  
}  
void vv()  
{  
 std::cout << "2" << std::endl;  
}  
void test(void (*pFunc)(void (*pFun2)()))  
{  
  
}  
int main()  
{  
 test(cc);  
}  

Best regards,

Minxin Yu

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Answer 2

Consider the following which uses the function pointers to produce output -

#include <iostream>

void cc(void (*pFunc)())
{
    std::cout << "1\n";
    pFunc();
}

void vv()
{
    std::cout << "2\n";
}

void test(void (*pFunc)(void (*)()), void (*pFunc1)())
{
    pFunc(pFunc1);
}

int main()
{
    test(cc, vv);
    return 0;
}