How to use recursive functions?

Question

Help me!
To use of recursive function in c.

Answer 1

A recursive function is one which calls itself.

To stop an infinite amount of calls, you need to define a base case.

Your question is asking how to use them.

In your C program - as with any other function - define your function first (before main() and after any included headers)

Then, you will now be able to use this recursive function. The SoloLearn C tutorial outlines an example but here’s one too:

void recursive(int z);

int main()
{
recursive(8);
//edit, adding a return statement
return 0;
}

void recursive(int z)
{
if(z < 0)
{ return; }
else
{
//do something
recursive(z-1);
}
}

It’s a pointless program but the fact recursive() calls itself means it is a recursive function. Note there is a base case/return statement to stop infinite calls.