Question

I am trying to use the fork() and wait() system calls in C++.

My code is really simple. However I get the following error:

error C3861: 'fork': identifier not found 

I have included the following header files. Do I have to include some other headers here? What is it that I am doing wrong?

#include<stdafx.h>
#include <sys/types.h>
#include <signal.h>

int main(){

    if(fork()==0)
    {
        printf("from child");
    }
    else
    {
        printf("from parent");
    }
}

Answer 1

fork() is available on posix systems only. It’s certainly not available on windows. Are you sure your operating system provides fork?