Re: Can anybody tell me the reason

"Ashu" wrote:


You're trying to return the address of a local. That won't
work, because the local ceases to exist when you exit funct.


You failed to initializ ptr, so you don't know where it's
pointing, nor do you know what it's pointing at.


There's 3 different errors there:
1. Uninitialized pointer
2. Unknown target
3. Assigning to an rvalue

If you're trying to get one function to alter a variable in
another, that can be done, but you'd have to declare p as "static"
and return a reference, like so:

#include <iostream>
int& funct()
{
   static int p = 10;
   std::cout << p << std::endl;
   return p;
}

int main()
{
   int x = 17;
   funct() = x; // prints "10", then assigns 17 to "p" in "funct"
   funct(); // prints "17"
   return 0;
}

--
Cheers,
Robbie Hatley
Tustin, CA, USA
lonewolfintj at pacbell dot net
(put "[usenet]" in subject to bypass spam filter)
http://home.pacbell.net/earnur/