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Rémy Oudompheng 7ad27481f8 math/big: fix out-of-bounds panic in divRecursive
The bounds in the last carry branch were wrong as there
is no reason for len(u) >= n+n/2 to always hold true.

We also adjust test to avoid using a remainder of 1
(in which case, the last step of the algorithm computes
(qhatv+1) - qhatv which rarely produces a carry).

Change-Id: I69fbab9c5e19d0db1c087fbfcd5b89352c2d26fb
Reviewed-on: https://go-review.googlesource.com/c/go/+/206839
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
2019-11-13 19:15:27 +00:00
.github
api unicode: upgrade to Unicode 12 2019-11-05 14:34:56 +00:00
doc doc: document new math.Fma function 2019-11-07 21:59:39 +00:00
lib/time
misc misc: ensure that test overlay directories are writable 2019-11-11 17:59:46 +00:00
src math/big: fix out-of-bounds panic in divRecursive 2019-11-13 19:15:27 +00:00
test test: add another test case for #35518 2019-11-12 21:02:24 +00:00
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