negative bits

[Claus Dreischer]

Hi,

maybe someone has done this already ...

I'd like to convert integers into binary ones and zeros like
input: "9" -> output "1001" or depending on the size of the output: "00001001"

This can be done with the baseConvert function:
   baseConvert( 9, 10, 2 ) gets me my "1001"

BUT (and we finaly get to the point)
converting a *negative* integer number won't get me the desired result:
   baseconvert( -9, 10, 2 )  -> "-1001"

The anticipated result would be "11110111"

So, how do i get there?
Am i missing something?

Regards,
   Claus.