Re: Comparing string input to enum data type

Yevgen Muntyan wrote:
Nelu wrote:
Yevgen Muntyan wrote:
CBFalconer wrote:
Yevgen Muntyan wrote:
Bill Pursell wrote:

... snip ...
If you've red the string into a, and you want to set c:

if( 0 == strncmp("red", a, sizeof "red") )
c = red;
else if ...

Funny thing it actually works since 'sizeof "red"' is
greater than length of "red". Still, a rather strange
way to compare strings.

sizeof "red" had better be 4.

What do you mean? It doesn't matter if it's 4 or 15, as long
as it's greater than 3 (and it is).

sizeof "red" must be 4 no matter where you run the program. It
should give you the length of the array holding the string.

I say it 'sizeof "red" *is* 4', so I don't understand 'sizeof
"red" had better be 4'.

It's an English idiom, meaning that if sizeof "red" isn't 4
something is seriously wrong.

I restored the blank separator lines your software mistakenly
removed.

--
Chuck F (cbfalconer at maineline dot net)
Available for consulting/temporary embedded and systems.
<http://cbfalconer.home.att.net>


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