On Wed, Mar 03, 2010 at 12:58:33PM -0500, Greg A. Woods wrote: > I believe that __UNCONST() in particular is _never_ absolutely necessary > -- it may sometimes save a very few cycles and a few bytes of storage, > but that's the best it can do.
At least one important interface would use its purpose without __UNCONST. I'm talking about writev -- if you have to copy all constants first, because struct iovec has a void * as iov_base, it stops making sense to use writev in first place. There is the general issue of const char ** vs char * const * in POSIX to be considered as well. Joerg
