JuliaLang/julia — comment on commit 6f85a7cf5261c53899a72dd82d59db414628d49c
File:  line 0
By StefanKarpinski:

For now I made both Bool and Char neither signed nor unsigned since they both have "different" behavior. With the proposed rules, they'll both be normal unsigned integers. Interestingly, Uint1 and Int1 are exactly the same.