C#•3w ago

Question about flag enums

    [Flags]
    public enum LogFlags
    {
        UseHeader,
        UseDateTime,
        ShouldSave,
    }

    [Flags]
    public enum LogFlags
    {
        UseHeader,
        UseDateTime,
        ShouldSave,
    }

will these be set respectively as 1, 2, 4, 8... (in powers) of two automatically?

6 Replies

no you have to assign the values yourself

canton7•3w ago

All [Flags] does (besides telling humans what you're up to) is alter how ToString() works

Angius•3w ago

Nifty trick: use bitshifting to not have to think about PoT

[Flags]
enum Foo
{
    A = 1 << 0, // 1
    B = 1 << 1, // 2
    C = 1 << 2, // 4
    D = 1 << 3, // 8
    E = 1 << 4, // 16
}

[Flags]
enum Foo
{
    A = 1 << 0, // 1
    B = 1 << 1, // 2
    C = 1 << 2, // 4
    D = 1 << 3, // 8
    E = 1 << 4, // 16
}

333fred•3w ago

Personally, I prefer binary literals there

Aaron•3w ago

or - that

GarelOP•3w ago

Thanks