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| From: | Dan Sebald |
| Subject: | [Octave-bug-tracker] [bug #54572] int64 does not saturate correctly in negative direction |
| Date: | Tue, 28 Aug 2018 16:35:39 -0400 (EDT) |
| User-agent: | Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:61.0) Gecko/20100101 Firefox/61.0 |
Follow-up Comment #17, bug #54572 (project octave):
OK, interesting...
How much work would it be to make ints use native arithmetic? If gcc/g++ is
used, then the
__builtin_sub_overflow()
family of routines could be used (very fast). If it isn't gcc/g++ compiler,
then Octave could use slower custom equivalents that check before the
operation whether it will overflow.
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