Coming back to life after Segmentation Violation

Question

Is it possible to restore the normal execution flow of a C program, after the Segmentation Fault error?

struct A {
    int x;
};
A* a = 0;

a->x = 123; /         


        

Answer 1

Unfortunately, you can't in this case. The buggy function has undefined behavior and could have corrupted your program's state.

What you CAN do is run the functions in a new process. If this process dies with a return code that indicates SIGSEGV, you know it has failed.

You could also rewrite the functions yourself.