Re: [boost] How do I detect if a system is fully 2's complement?

On 11/12/06 12:27 PM, "David Abrahams" <dave@boost-consulting.com> wrote:

Daryle Walker <darylew@hotmail.com> writes:

...

I'm working on a bug that's only present on machines that use 2's complement for their built-in integers that use all possible bit combinations (like the common platforms). How can I detect this?

Do you need to know at preprocessing time, compile time, or runtime?

I need it during preprocessing. Look at test case "patch_1438626_test" in "rational_test.cpp" (in our CVS HEAD). I'm curious about the solution for all three times, though. -- Daryle Walker Mac, Internet, and Video Game Junkie darylew AT hotmail DOT com