How function can be nested in c?

Answer 1

A function can call other functions (or itself), but a function-definition cannot be nested in another function-definition:

int main (void)

{

void wont_compile (void) { puts ("Won't compile"); }

wont_compile ();

return 0;

}

Answer 2

we can't define a function in c,because the compiler doesn't allow it.

Answer 3

No.