void[] and ubyte[]

[Stephan]

Hi,

In phobos there are places with void[] and places with ubyte[], 
and I can't really understand why there is this difference. I 
don't even see why D has a void array or void pointer anyway.
For example, in std.base64, ubyte[] is used as the basic quantity 
for encoding, while in std.zlib, it's void[]. Both libraries have 
a similar pair of functions like encode/decode or 
compress/uncompress. Both act on raw memory. So why not use 
ubyte[] all the time? Isn't any stretch of bare data on the heap 
in the end an array of bytes? Void[] seems like a C-anachronism 
to me. I have no experience with void pointers or arrays, so I am 
probably missing something.

Thanks,

Stephan