Dear "David Collier", In message <memo.20091026103604.20...@postmaster+dexdyne.com.cix.co.uk> you wrote: > > I did not only describe it, I tested it. I just "tricked" a bit. > > You asked to extract the last two digits, and I used "% 100" to do > > this. Note that this works correctly in any number base - may it be > > 10 or 16 or whatever :-) > > > > Hey, that was clever, wasn't it? :-) > > yeah it was - but of course I really wanted the next 2 digits as well.... > I'm hoping to make more than 100 units really! pardon me for > over-simplifying my question.
Then do the same with "% 10000" and "/ 100" ? > I wonder if it would be useful/helpful to allow the user to optionally > over-ride the number base for reading and separately for writing by > setexpr. I don't see a need for it; certainly not here. > That would extend it's usefulness without requiring an extra command or > breaking any existing code No extra command is needed here. > setenv setexpr_in 10 > setenv setexpr_out 16 > > If I wrote a patch would you look favourably on it? I don't think so. If we did something like that, it should be generic and not restricted to one command. And it would break a LOT of existing scripts. And it is not needed at all, at least not for the use case you have in mind here. [If anything is worth implementing at all, then maybe the regexp handling present in standard expr command.] Best regards, Wolfgang Denk -- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: w...@denx.de Testing can show the presense of bugs, but not their absence. -- Edsger Dijkstra _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot