On Friday, 29 March 2013 at 19:29:21 UTC, Jonathan M Davis wrote:
No. -w makes it so that warnings are errors, so you generally
can't make
anything a warning unless you're willing for it to be treated
as an error at
least some of the time (and a lot of people compile with -w),
and this sort of
thing is _supposed_ to work without a warning - primarily
because if it
doesn't, you're forced to cast all over the place when you're
dealing with
both signed and unsigned types, and the casts actually make
your code more
error-prone, because you could end up casting something other
than uint to int
or int to uint by accident (e.g. long to uint) and end up with
bugs due to
that.
This reason alone ain't good enough to justify the implicit cast
from unsigned to signed and vice-versa. When I sum 2 short values
I am forced to manually cast the result to short if I want to
assign it to a short variable. Isn't that prone to errors, too?
Yet the compiler forces me to cast. I really think we should
eliminate this discrepancy.
