Symbol "|" in Objective C

Question

What does this line represent? Please any one explain about | symbol?

self.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;

this has nothing to do with objective c. this is a c operator. pls don't open for any c operator a question. — peko, Mar 15 '13 at 12:23
Can you explain me `UIViewAutoresizingFlexibleWidth` in Operator, or C ? — Anoop Vaidya, Mar 15 '13 at 12:49
why is this getting retaged to objective-c? at least leave the c tag — peko, Mar 15 '13 at 13:01

Anoop Vaidya · Answer 1 · 2013-03-15T10:18:32.343

1

| is bitwise OR operator.

You can find more on it here.

the values of both the constanst are as, it find bitwise on them.

UIViewAutoresizingFlexibleWidth  = 1 << 1 //2

UIViewAutoresizingFlexibleHeight = 1 << 4 //16

This will be :

UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight = 18

edited Mar 15 '13 at 10:18

answered Mar 15 '13 at 10:12

Anoop Vaidya

@downvoter : why downvote? – Anoop Vaidya Mar 15 '13 at 12:32
@peoplewhoanswertothis. why didn't you downvote and mark this question as duplicate or to localized. because the only thing you care about is youre score. thats why i downvoted you – peko Mar 15 '13 at 12:45
@peko: Happy to see your comment, I dont think this answer is dupe to that C/C++/C#/java question, I explicitly defined the meaning of each constants. – Anoop Vaidya Mar 15 '13 at 12:50
not youre answer is a dupe. youre answer is fine and well explained like most of youre answers. its the question – peko Mar 15 '13 at 12:58
@peko: so you are expecting much from this answer? should i add few more explanation to it? – Anoop Vaidya Mar 15 '13 at 13:02

1 Answers1