Define structure of flags

Question

I would like to define structure which will contain eight flags. Is it possible to use byte type instead of 8 boolean fields in it? I would like to have something like this

struct mystruct
{
  byte first:1;
  byte second:1;
  ...
}

I want binary representation to give me flags value.

And what if I have some values which should take more than 1 bit, e. g. 2 or 4

possible duplicate of [Enum Flags Attribute](http://stackoverflow.com/questions/8447/enum-flags-attribute) — Philip Kendall, Sep 03 '13 at 11:41
I know it's not quite a duplicate, but the `[Flags]` attribute does sound like exactly what you're after here. — Philip Kendall, Sep 03 '13 at 11:41

score 4 · Answer 1 · answered Sep 03 '13 at 11:43

4

Yes, you can do it not with a struct but with an enum, like this:

[Flags]
public enum MyFlags
{
    First = 1,
    Second = 2,
    Third = 4,
    Fourth = 8
}

answered Sep 03 '13 at 11:43

Dutts

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score 3 · Accepted Answer · edited Jan 08 '21 at 04:05

3

Hi undercover It will be converted to bytes look to this:

    [FlagsAttribute]
    public enum mystruct: byte
    {
        first= 1,
        second =2
    }

Shall I also post for you the IL code?

more info : What does the [Flags] Enum Attribute mean in C#?

By the way Flags is simply shorthand for FlagsAttribute.

edited Jan 08 '21 at 04:05

d51

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answered Sep 03 '13 at 11:44

Bassam Alugili

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Define structure of flags

2 Answers2