try_lock for SRW locks
stl: diamond operators for comparators
stl: Heterogeneous lookup in associative containers (N3657, c++14)
stlx: exchange() for c++14
stlx: equal for 4 iterators
stlx: traits aliases for c++14
stlx: improved integral_constant
nt: fix nt::resource
nt: add scoped lock for critical_section
stlx: shared_mutex implementation
tr2: lock_stream function