Check against a value

I have a variable called, for example, "lstate". It can be a combination of ODS_DEFAULT, ODS_SELECTED, ODS_FOCUS, etc.
Now, I want to if it has ODS_SELECTED it in.
Here is how I am doing:

PHP Code:

---

if(lstate && ODS_SELECTED)
{
//ODS_SELECTED is in there
} 


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Is the above checking right?

I think if each of the possible values is a power of 2, this is the way...

PHP Code:

---

if ((lstate & ODS_SELECTED) == ODS_SELECTED)
{
//...ODS_SELECTED is in there...
} 


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:)

Crptc is right. It will only work if the constant sets a bit on that no other constant sets. Also use the bit-wise & operator, not the && boolean operator :D

Quote:

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Originally posted by jim mcnamara
Crptc is right.

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All right...1 out of 2500 ain't too shabby.

:D

Thanks, especially clearing about that bitwise operator...was messing up with them and inversing them.
Anyways, my code still isn't doing what I want it to but I guess it's some other problem...