Avatar of naseeam
naseeamFlag for United States of America asked on

printf can not be a macro defined in terms of fprintf ?

Please explain following sentence from 'C' language book:

"Note, though, that unlike getchar and fgetc, printf can not be a macro defined in terms of fprintf, because macros can not have a variable number of arguments."

Please provide example of how there will be variable number of arguments if printf is a macro defined in terms of fprintf ?
CC++

Avatar of undefined
Last Comment
naseeam

8/22/2022 - Mon
SStory

printf can have variable number of args.

printf("Good morning, %s, did you know that %d + %d = %d?",name,5,5,10);
printf("Good morning, %s",name);

Here printf has 4 args (5 including the string) in the first, and 1 or 2 in the second. It is saying you can't do this in the macro because it won't allow variable args..I think.
ASKER
naseeam

Please provide example of printf being a macro defined in terms of fprintf.  Then, explain why it can't be done.
ASKER CERTIFIED SOLUTION
jkr

Log in or sign up to see answer
Become an EE member today7-DAY FREE TRIAL
Members can start a 7-Day Free trial then enjoy unlimited access to the platform
Sign up - Free for 7 days
or
Learn why we charge membership fees
We get it - no one likes a content blocker. Take one extra minute and find out why we block content.
See how we're fighting big data
Not exactly the question you had in mind?
Sign up for an EE membership and get your own personalized solution. With an EE membership, you can ask unlimited troubleshooting, research, or opinion questions.
ask a question
SOLUTION
Log in to continue reading
Log In
Sign up - Free for 7 days
Get an unlimited membership to EE for less than $4 a week.
Unlimited question asking, solutions, articles and more.
ASKER
naseeam

Great explanation with great examples.
I started with Experts Exchange in 2004 and it's been a mainstay of my professional computing life since. It helped me launch a career as a programmer / Oracle data analyst
William Peck