Sign In
Create Account
Follow Us on Twitter
Subscribe on Youtube
3
Hi
I was wondering why "<<" in "cout <<" and ">>" in "cin >>" are called insertion and extraction operators respectively. The operator "<<" inserts into what (you should have something in order to insert something into it? Is it display screen which is the object of insertion? Likewise, extraction operator ">>" extracts from what? Display screen?
Please help me with it. Thanks.
2 replies to this topic
#1
Posted 11 October 2011 - 10:23 AM
jackson6612
-
- Members
-
- 304 posts
Programming Professional
I'm an outright beginner, learning C++. Using Win XP Pro and Code::Blocks. Be nice to me, please.:)
Back to top|
|
|
#2
Posted 11 October 2011 - 11:28 AM
gregwarner
-
- Members
-
- 853 posts
Programming God
- Location:Arkansas
<< and >> are overloaded operators in C++ for use with streams. When used with streams, the operators "extract" and "insert" data from and to those streams. In your question above, 'cin' and 'cout' are the stream objects being used here. 'cout' is an output stream that sends data to the console, and 'cin' is an input stream that reads data from the console.
Hofstadter's Law: It always takes longer than you expect, even when you take into account Hofstadter's Law.
– Douglas Hofstadter, Gödel, Escher, Bach: An Eternal Golden Braid
#3
Posted 11 October 2011 - 11:35 AM
mebob
-
- Members
-
- 490 posts
Programming Expert
Basically you are INSERTING into the stdout stream with << and EXTRACTING from stdin stream with >>
Latinamne loqueris?
1 user(s) are reading this topic
0 members, 1 guests, 0 anonymous users
