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

Call this, and when a segfault will occur, your code will execute segv_handler and then continue back to where it was.

void segv_handler(int)
{
  // Do what you want here
}

signal(SIGSEGV, segv_handler);