Abseil is an open source collection of C++ libraries drawn from the
most fundamental pieces of Google's internal codebase.  These
libraries are the nuts-and-bolts that underpin almost everything
Google runs.  Bits and pieces of these APIs are embedded in most
of our open source projects, and Abseil aims to bring them together
into one comprehensive project.  Abseil encompasses the most basic
building blocks of Google's codebase: code that is production-tested
and will be fully maintained for years to come.
