tree 74dbfba9f285cf06faec61c360f78fc5a4bb3e65
parent d24f4994f9cf4c90559bd249d145f87bca95feec
author davidben <davidben@google.com> 1698179471 -0700
committer Copybara-Service <copybara-worker@google.com> 1698179601 -0700

Fix UBSan issues in QUICHE

It is UB to pass `nullptr` to `memcpy` and friends, even when the byte count is zero. This is a language bug in C that got carried over to C++. UBSan flags these as issues, which is one of the blockers for running Chromium through UBSan.

`std::copy` and friends from `<algorithm>` do not have this issue, so use those instead.

PiperOrigin-RevId: 576257137