## S3 method for class 'booltype'
c(...)

## S3 method for class 'bit'
c(...)

## S3 method for class 'bitwhich'
c(...)

c(bit(4), !bit(4))
 c(bit(4), !bitwhich(4))
 c(bitwhich(4), !bit(4))
 c(ri(1,2,4), !bit(4))
 c(bit(4), !logical(4))
 message("logical in first argument does not dispatch: c(logical(4), bit(4))")
 c.booltype(logical(4), !bit(4))