c - Playing with pointer in c language

Question

Could we point and address specific place in memory using pointer in c language? Then modify it from another file (ANOTHER PROGRAM) and view it from any where. Like :

Modifying it :

#include<stdio.h>

void main(){


   int *p;
   p= 12345678;
   scanf("%d",p);

}

Viewing it :

#include<stdio.h>

void main(){


   int *p;
   p= 12345678;
   printf("%d", *p);

}

标签： cpointersmemoryheap-memory

Answer 1

No. Each process in your operating system has its own address space.
Processes can communicate, using the channels provided by the operating system.
Look into IPC, aka inter process communication, if you're interested in knowing more about it.