What happens when you close a c++ console application

Question

I guess the question says it all, but, what happens if someone closes a c++ console app? As in, clicks the \"x\" in the top corner. Does it instantly close? Does it throw so

Answer 1

On Linux and other Unix systems, the console runs as a separate process. As you close the shell, it sends the SIGHUP signal to the currently active process or processes that are not executed in the background. If the programmer does not handle it, the process simply terminates. The same signal is sent if you close the SSH session with a terminal and an active process.