Option to make unsigned->signed conversion always well-defined?

[Miles Bader]

2011/10/7 Pedro Pedruzzi <pedro.pedruzzi@gmail.com>:
> It is. For example -100 + -100 = -200 (less than INT8_MIN; does not
> fit). But -1 + -1 = -2, is ok.

Ah, now I see...

-miles

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