printf and puts
Mon, 2012-06-25 04:32
Newbie here .
Whats the difference between 'printf' and 'puts' . Isnt it better to use 'puts' for basic printing of characters as one would'nt have to type \n .
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"puts" is definitely quick and convenient! The big difference is that printf has a format string option.
You can also argue that puts is a little safer. If for example, you pass user input into a "printf" or an "sprintf" function on accident such as:
printf(userinput);
Instead of:
printf("%s", userinput);
The user can maliciously format the input string and hack your application (exploit a security vulnerability).
Here's a nice wiki page on string vulnerabilities:
http://en.wikipedia.org/wiki/Format%5Fstring%5Fvulnerabilities
Bryan