[Bug libstdc++/57641] std::timed_mutex.try_lock_until() is broken

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57641

--- Comment #7 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Author: redi
Date: Mon Oct  7 23:21:58 2013
New Revision: 203256

URL: http://gcc.gnu.org/viewcvs?rev=203256&root=gcc&view=rev
Log:
    PR libstdc++/57641
    * include/std/mutex (timed_mutex, recursive_timed_mutex): Add
    overloaded _M_try_lock_until to handle conversion between different
    clocks. Replace constrained __try_lock_for_impl overloads with
    conditional increment.
    * testsuite/30_threads/timed_mutex/try_lock_until/57641.cc: New.

Added:
   
branches/gcc-4_8-branch/libstdc++-v3/testsuite/30_threads/timed_mutex/try_lock_until/57641.cc
Modified:
    branches/gcc-4_8-branch/libstdc++-v3/ChangeLog
    branches/gcc-4_8-branch/libstdc++-v3/include/std/mutex