Need reviewer: JDK 8 CR for Support Integer overflow (original) (raw)
Florian Weimer fweimer at bfk.de
Fri Feb 3 12:12:07 UTC 2012
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- Eamonn McManus:
On 3 February 2012 00:11, Florian Weimer <fweimer at bfk.de> wrote:
Would it make sense to replace (x ^ r) < 0 && (x ^ y) >= 0 with (x ^ y ^ r) < 0? That would not be correct. For example, it would signal overflow for -1 + 1.
Oops. But there has to be a way to implement this using just one comparison.
-- Florian Weimer <fweimer at bfk.de> BFK edv-consulting GmbH http://www.bfk.de/ Kriegsstraße 100 tel: +49-721-96201-1 D-76133 Karlsruhe fax: +49-721-96201-99
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