On Fri, Sep 21, 2012 at 11:27 AM, Adam Lee <adam8157@gmail.com> wrote:
On Fri, Sep 21, 2012 at 10:15:01AM +0530, Lokesh Walase wrote:
0.I read that ANSI C rules for variable declaration says that one must declare the variables at the beginning of any scope block. C99 onwards we are allowed to declare variables as & how required.
1.NOW, my doubt is what happens in the actual "practical/real-world" codes that are written in industry. Do everyone *strictly* follow the ANSI C rules & declare the variables at the beginning of the scope ?
Yes, I do.
2.Also , why are we still following that old rule ? Is it so that old codes of 70s can be used with new codes ?
Because I like it. And I think it's better sometimes, for example, variable declaration you mentioned, it's eaiser to trace all variables by following the ANSI C standard.
ANSI C codes can be used with any modern compiler. And you can mix it with other newer standards.
3.There must be some standard that all of us need to follow , so what are they ?
May be the standards followed by most people are gnu89(ANSI C with GCC extensions) and C99.
Thanks for the reply Adam !
PS, this is kind of out of topic in a kernel mail-list.
Yeah , even I was sort of confused whether to aks this here or not. Will take next time onwards :)
-- Regards, Adam Lee http://adam8157.info