tree 97cdbf287632aacf0648fac3a2475db0a1fb4887
parent c194fd30c6fa3537d918939dd0a762786f21d764
author Josh Gao <jmgao@google.com> 1461706975 -0700
committer Josh Gao <jmgao@google.com> 1461801054 -0700

Tag unavailable functions with macro.

Add an __UNAVAILABLE macro, and use it for several functions which lack
implementations, but need to have visible declarations to be reexported
in the C++ standard library.

Bug: http://b/28178111
Change-Id: Ia4ae0207bbfcb7baa61821f0ef946257b019c0db