tree 5366921eee525d142fab55e10d3fabfc5c3e9496
parent b2a4b9290986653b6111a11d0b1934aa667ab359
author Nathan Sidwell <nathan@acm.org> 1648496328 -0700
committer Copybara-Service <copybara-worker@google.com> 1652097675 -0700

[demangler] Buffer peeking needs buffer

The output buffer has a 'back' member, which returns NUL when you try
it with an empty buffer.  But there are no use cases that need that
additional functionality.  This makes the 'back' member behave more
like STL containers' back members.  (It still returns a value, not a
reference.)

Reviewed By: dblaikie

Differential Revision: https://reviews.llvm.org/D123201

GitOrigin-RevId: e48cd7088b736dae5cd572ebb58963c70a4a72b8