Hi,
On 10/19/2013 11:02 PM, Christopher Jefferson wrote:
A previous fix to a performance problem in std::sort unfortunately has
lead to a crashing bug in std::nth_element.
The following minimal patch fixes the problem (there are a couple of
different ways of fixing it, this is the shortest and safest).
2013-09-19 Chris Jefferson <[email protected]>
PR libstdc++/58800
* include/bits/stl_algo.h (__unguarded_partition_pivot) : Change
__last - 2 to __last - 1, so we correctly work on arrays of length 4.
* testsuite/25_algorithms/nth_element/58800.cc : New
I have this already applied in my local svn branches and can apply it
later today (I fixed the Copyright years to only 2013 of course and
reformatted a bit the rest of the testcase)
Thanks!
Paolo.
