Paul Eggert <[EMAIL PROTECTED]> writes: | Here are further patches I checked into the Autoconf documentation to | reflect today's comments (some of which I received privately). Thanks | to all of you. The trickiest bit was documenting one simple way to | reliably detect overflow without converting to unsigned and back. | (At least, I hope it's reliable....)
I have noted earlier that the GNU implementation of C++ standard's std::numeric_limits<T>::is_modulo has been reporting "true" for over half a decade now, when T is a signed integral type. I don't know where that fits in the equation but surely it tells people that they can count on wrapping for signed integer arithmetic. -- Gaby
