Using cin
As the output from Listing 2.3 demonstrates, the value typed from the keyboard (12
) is eventually assigned to the variable carrots
. The following statement performs that wonder:
cin >> carrots;
Looking at this statement, you can practically see information flowing from cin
into carrots
. Naturally, there is a slightly more formal description of this process. Just as C++ considers output to be a stream of characters flowing out of the program, it considers input to be a stream of characters flowing into the program. The iostream
file defines cin
as an object that represents this stream. For output, the <<
operator inserts characters into the output stream. For input, cin
uses the >>
operator to extract characters from the input stream. ...
Get C++ Primer Plus now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.