Re: Code Comprehension
Mark P wrote:
Pascal Bourguignon wrote:
jmcgill <jmcgill@xxxxxxxxxxxxxxxxx> writes:
Pascal Bourguignon wrote:
if((string=NULL)||(bag==NULL)){return;} /* Actually no, my _strings_
are not NULL! */
Ouch. Now your "string" is :-)
Oops. I really should take the habit of writting the constant first...
(Actually, when I write C programs, I've got a rule in my makefiles to
detect this error).
Really? How do you do that?
I don't know how to do it with makefiles. If you use GCC the
--Wparentheses will make the compiler warn you about it. It will warn
you about some other things you might not care about too, and you may
intend to do it in some cases anyway. Some other compilers have
similar flags.
Some editors (such as GNU Emacs which I use) have an option to put an =
sign inside a comparison like statement in a bold font to make it stand
out.
As Pascal says if you write things in the form NULL ==string you can't
easily make this mistake. I think this, coupled with editor
highlighting, is a nicer solution than compiler warnings.
.
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