On Wed, 17 Jan 2007, Mike Stump wrote:
| On Jan 17, 2007, at 4:44 PM, Gabriel Dos Reis wrote:
| > C++ forces compilers to reveal their semantics for built-in types
| > through numeric_limits<>. Every time you change the behaviour,
| > you also implicilty break an ABI.
|
| No, the ABI does not document that the answer never changes between
| translation units, only that for this translation unit, what the
| answer happens to be. If it said what you thought it said, you'd be
| able to quote it. If you think I'm wrong, I look forward to the quote.
(1) the ABI I was talking about is that of libstdc++, not that of
the processor. Sorry if that wasn't clearer (I switched to the
library developer perspective, and should have made that clearer).
Each time we make changes to libstdc++ ABI, people get very nervous.
(2) numeric_limits<> cannot change from translation unit to translation
unit, within the same program otherwise you break the ODR. I guess
we all agree on that.
-- Gaby
