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Exit code in C++
Name: R.Hillier Date: July 1, 2002 at 08:31:26 Pacific
Comment:
Is it safe to use the exit() with a generated value.ie: exit(101); this generated value is read for a text file. ... I can't use the return()method, because the CALL programme is only detecting the exit code.
Yes it is safe unless you have a multi-threaded program.
exit() will kill the current thread as will and return. However, exit will call the functions registered by atexit and _onexit and flush all the buffers. This is fine for single threaded programs. For multi-threaded programs, it just exits the current thread.
There is also _exit() which will kill the program without calling the functions registered by atexit etc and all its threads.
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