When abort() is preferred over exit()?

Question

I know the differences between the two. One notable thing is that abort() sends SIGABRT signal, so it may be relevant when your software relies on them. But for

Answer 1

Use abort() if your program is in a possibly corrupt state and you consider it too dangerous to try to do anything further. exit() will cause any atexit functions, and in C++ destructors of static objects, to be called. This is usually what you want for a clean exit, but it could be catastrophic if, for example, they overwrite a file with corrupt data.