8 commits

Author	SHA1	Message	Date
Henry de Valence	5f1d73bca0	Fix a negate-with-overflow edgecase by widening before computation. ... This fixes a bug in the Pippenger implementation reported by Fernando Krell and diagnosed by Oleg Andreev. The problem is that at the largest problem sizes (using w=8), the signed digits fill the value range of an i8, and so doing computation on them to calculate the bucket index can hit an overflow. This was not caught in CI because the test suite didn't check all problem sizes; tests for these sizes which expose this bug were added in the previous commit.	2019-06-05 20:59:07 -07:00
Henry de Valence	19dcd62053	Add reference to 2012/549	2019-06-04 13:41:43 -07:00
Oleg Andreev	eb82a9d8b6	Update src/backend/serial/scalar_mul/pippenger.rs ... Co-Authored-By: Henry de Valence <hdevalence@hdevalence.ca>	2019-05-24 18:00:34 -05:00
Oleg Andreev	9836d6622c	cleaner name per Henry’s suggestion	2019-05-24 12:18:10 -07:00
Oleg Andreev	ca2926ac89	use one buffer instead of two	2019-05-22 11:48:30 -07:00
Henry de Valence	dfcac0d8e2	rustfmt and copyright fixes	2019-05-22 11:38:52 -07:00
Oleg Andreev	7fba2a1bcc	avoid unnecessary allocation	2019-05-22 11:14:26 -07:00
Oleg Andreev	42648aa460	cgs	2019-05-21 13:32:50 -07:00