Question

I’m trying to work with flags returned by a web service that was developed in .NET C#. The flags are returned in a json object as a string separated by commas ex: roomA,roomB,auditorium. My Qt c++ app is using an enum with a bit set for each of the flags:

enum AccessMask
{
    None = 0,

    roomA                       = 1 << 1,
    roomB                       = 1 << 2,
    ownerOnly                   = 1 << 3,
    workgroup                   = 1 << 4,
    department                  = 1 << 5,
    auditorium                  = 1 << 6
}

Is there a better way to set an access mask other than doing many ‘if QString.contains()’ statements?

Answer 1

You could use a dictionary or map that have a string as key and the enum-value as data. Then you could split the string at the comma and do an easy look-up of the values.