Re: Function that reproduces itself

"Jim Langston" <>
Wed, 12 Jul 2006 14:13:33 -0700
"Murali Krishna" <> wrote in message

Vig wrote:

What is a functio nthat produces itself called? I can;t recall for the
life of me...


function that produces itself? I haven't seen such kind of function.

The question has already been answered, but I had to try out of curiosity.
This program gives a memory violation trying to write to memory on the 2nd
call to FuncP. I was sure it wouldn't work, but had to see what would
happen anyway.

#include <string>
#include <iostream>

int TestFunction()
    return 2;

typedef int (*Func)();

int main()
    Func FuncP;
    FuncP = TestFunction;

    int x = FuncP();

    std::cout << x << std::endl;

    FuncP = (Func)malloc( 1000 );
    memcpy( FuncP, TestFunction, 1000 );

    x = 4;
    x = FuncP(); // Crashes here


    std::cout << x << std::endl;

    std::string wait;
    std::cin >> wait;


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