Johannes Pfau wrote: > Am Thu, 23 Aug 2012 22:46:35 +0200 > schrieb Jens Mueller <jens.k.muel...@gmx.de>: > > > > > It says "Digests do not work in CTFE". > > Just checked it for MD5. > > I do not know but I think this is just a current limitation of the > > CTFE implementation. > > It's possible to support CTFE, Piotr Szturmaj has some digests which > work in CTFE. But it's difficult as everything which depends on > endianness isn't supported in CTFE. > > https://github.com/pszturmaj/phobos/commit/d06c258b442c5b59ab3a66125c9aea8a4c00a0b7 > > take for example the setByte function: > a[offset / E.sizeof] |= value << ((offset % E.sizeof) * 8); > This is necessary because you can't cast from uint to ubyte[4] in CTFE.
I see. Though I do not understand that limitation of CTFE. Since D has version(LittleEndian) and version(BigEndian) and CTFE should follow versioning I see no reason why casts that depend on endianness should not be supported. When writing a function you have to care about endianness anyway. Jens
