On 12/11/19 5:21 PM, Bruno Haible wrote:
Last time we were trying to find a good name for this typedef. How about
typedef ptrdiff_t uptrdiff_t;
"u" connotes "unsigned"; but "nonnegative but signed" is what is wanted
here, and it is not the same thing.
Some of the ptrdiff_t values in dfa.c can be negative. Some can be -1 or
nonnegative. Will we need more types for these other possibilities?
Also, where would we put these new typedefs? dfa.h doesn't seem like the
right place.
It's quite possible that clang will have range types, 5 years from now.
I've been wanting, off and on, to get range types into the C world since
the 1980s. It hasn't happened yet.
