Checking for bit flags

Question

I\'m trying to check for a bit in a flags value of which flags can be |\'d together. So far i\'m using this

 if ((someclass.flags | CONST_SOMEFLAG) == somecl         


        

Answer 1

What you want to know is, if the flag bit is set among all the other possibly set or unset bits. The canonical way to do this, is to bitwise and (&) test for being nonzero

if( someclass.flags & CONST_SOMEFLAG )