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June 13th, 2012, 07:13 AM
#3
Re: Difference between function and macro
 Originally Posted by Yarlini Amirthanesan
Hello expects. Can you tell me wot is the difference between a function and macro in C++. They lok the sam. Can you tell? When you use a macro and not a function? 
Email: [email protected]
No: From the call alone, it is not possible to know if you are using a macro, a function, or an object's operator().
However, there is a very widespread coding practice that says that macros should be in ALL_CAPS:
Code:
DO_SOMETHING(); //Probably a macro
do_something(); //Probably a function
Is your question related to IO?
Read this C++ FAQ article at parashift by Marshall Cline. In particular points 1-6.
It will explain how to correctly deal with IO, how to validate input, and why you shouldn't count on "while(!in.eof())". And it always makes for excellent reading.
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