tree 2dc82c2047c9e74ecf765c0114324963facca76d
parent 9a53d6c97f65375bb8885b7a491fa803d979953f
author Armando Montanez <amontanez@google.com> 1617908409 -0700
committer CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com> 1620175306 +0000

pw_stream: Allow staging data to MemoryWriter end

Changes the memory writer to use std::memmove to allow data to be staged
to the unused portion of a MemoryWriter's buffer before it is written.
This is useful for operations that require direct access to a buffer to
build data before it is flushed to a MemoryWriter.

No-Docs-Update-Reason: Optimization that shouldn't be advertised
Change-Id: I3728e50e30031d7f87db43981827ef799fbce217
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/40244
Reviewed-by: David Rogers <davidrogers@google.com>
Commit-Queue: Armando Montanez <amontanez@google.com>