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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 a typical application exit() seems to be more safe version of abort()...? Are there any other concerns to use abort() instead of exit()?
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abort function The difference between exit and abort is that exit allows the C++ runtime termination processing to take place (global object destructors get called). abort terminates the program immediately. The abort function bypasses the normal destruction process for initialized global static objects.
In the C Programming Language, the abort function raises the SIGABRT signal, and causes abnormal program termination that returns an implementation defined code indicating unsuccessful termination.
The correct answer is Esc Key. The escape key of the keyboard is mainly used to cancel the program.
void abort ( void );
Using abort will dump core, if the user has core dumps enabled. So as a rule of thumb, I'd use abort if you're so unsure about what's gone wrong that the only way to get useful information about it is by analysing a core dump.
If you can safely exit from any given point, and don't need the core dump, then exit is a nicer approach.
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