IsBadReadPtr analogue on Unix

Question

Is there a function analogous to IsBadReadPtr in Unix? At least some functionalities of IsBadReadPtr? I want to write a procedure which would react if something bad happens

Answer 1

How can you do it?

You try to do it and then handle the error.

To do this, first you set up a sigsetjmp and a SIGSEGV signal handler. Then attempt to use the pointer. If it was a bad pointer then the SIGSEGV handler is called and you can jump to safety and report the error to the user.