Array index out of bound in C

Question

Why does C differentiates in case of array index out of bound

#include 
int main()
{
    int a[10];
    a[3]=4;
    a[11]=3;//doe         


        

Answer 1

That's not a C issue its an operating system issue. You're program has been granted a certain memory space and anything you do inside of that is fine. The segmentation fault only happens when you access memory outside of your process space.

Not all operating systems have seperate address spaces for each proces, in which case you can corrupt the state of another process or of the operating system with no warning.