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Re: changing "configure" to default to "gcc -g -O2 -fwrapv ..."
(again I apologize for breaking the thread),
Here is the reply I sent properly threaded
Gaby said
> K&R C leaves arithmetic overflow undefined (except for unsigned
> types), in the sense that you get whatever the underlying hardware
> gives you. If it traps, you get trapped. If it wraps, you get >
wrapped.
Is that really what the K&R book says, or just what compilers typically
did? My memory is that the K&R book leaves it undefined period, but it's
a long time since I read it!