[Bug libstdc++/78389] list::merge and list::sort are not exception safe

[ville at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78389

--- Comment #6 from ville at gcc dot gnu.org ---
Author: ville
Date: Mon Jan 16 11:36:33 2017
New Revision: 244490

URL: https://gcc.gnu.org/viewcvs?rev=244490&root=gcc&view=rev
Log:
PR libstdc++/78389 fix backwards size adjustments.

PR libstdc++/78389
* include/bits/list.tcc (merge(list&&)): Fix backwards size adjustments.
(merge(list&&, _StrictWeakOrdering)): Likewise.
* testsuite/23_containers/list/operations/78389.cc: Add
better test for the sizes.

Modified:
    trunk/libstdc++-v3/ChangeLog
    trunk/libstdc++-v3/include/bits/list.tcc
    trunk/libstdc++-v3/testsuite/23_containers/list/operations/78389.cc