tree 9fca1fb85987555172de5ad0ed93345dfe3dcd1d
parent d2e2a0206e8134854b29f672c773657d2fca595e
author Eric Fiselier <eric@efcs.ca> 1532487233 +0000
committer Eric Fiselier <eric@efcs.ca> 1532487233 +0000

Add design docs for upcoming file_time_type change.

In upcoming changes to filesystem I plan to change file_time_type
to use __int128_t as its underlying representation, in order
to allow it to have a range and resolution at least that of
the timespec struct.

There was some pushback against this decision, so I drafted
a document explaining the problems, potential solutions, and
the rational for the decision.

However, it's probably easier to let people read the generated
HTML rather than the raw restructured text. For this reason
I'm commiting the design documents before hand, so they can
be available during any subsequent discussion or code review.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@337880 91177308-0d34-0410-b5e6-96231b3b80d8