tree a087fe9f917dfcaa3a22e0fc250d047478764b6c
parent 3cebc7aa4e765bbd04a886d8e461895b53909eef
author William A. Kennington III <wak@google.com> 1571426772 -0700
committer William A. Kennington III <wak@google.com> 1571785512 -0700

build-unit-test-docker: Add span-lite

Spans are nice to have as they are a c++20 approved, generalized version
of a mutable view of arbitrary data types. This implementation is
minimal and mostly conforms to the standard, with a clear migration path
when we have c++20 available. This will be first used by stdplus.

Change-Id: I8219f1cf452919044970841d7561c50ebc8e81a0
Signed-off-by: William A. Kennington III <wak@google.com>