My code is written twice for uncomprehensible reasons

Question

This code is written in C++ and for reasons that I don\'t quite understand it is written twice. I would expect that after inputting a random char it would display the char once

Answer 1

The text 'this will be written twice..' will not necessarily print twice.

Type 'qwerty' + ENTER and your stream will have "qwerty\n" within and you'll see this output:

this will be written twice for ununderstandable reasons
this will be written twice for ununderstandable reasons
this will be written twice for ununderstandable reasons
this will be written twice for ununderstandable reasons
this will be written twice for ununderstandable reasons
this will be written twice for ununderstandable reasons
this will be written twice for ununderstandable reasons

Exactly that many as string "qwerty\n" has characters. The problem is that

cin.get()

Puts all chars that you type into a stream/buffer (not your letter char) but handles one char every cin.get() invocation.

When you type 'abcXd' + enter - the program will print above line 3 times and stop on X.