Am Dienstag, 19. April 2005 21:41 schrieb E. Weddington: > Joerg Wunsch wrote: > >As Eric Weddington wrote: > >>For reference, the ffs function can be found in newlib. > >><http://sources.redhat.com/newlib/libc.html#SEC187> > > > >Which probably took it straight from the BSD lib. ;-) > > > >As the function is so simple, and the BSD copyright matches our > >copyright (clause 3 may officially be omitted), we can easily import > >it. > > As a side note, I find it odd that the GCC test suite would require such > a non-ANSI standard function to be in the libc. But yeah, it's easy > enough to add. > > Eric I think the background is that for some targets there is a special instruction for this purpose. Gcc has special support for a RTL instruction pattern that is then matched to a built-in function. The test cases seem to be useful for testing this feature.
Yours, Bj�rn _______________________________________________ AVR-libc-dev mailing list [email protected] http://lists.nongnu.org/mailman/listinfo/avr-libc-dev
