tree 8978f3691b7c894868da070da6f19ef2f018bc84
parent 04d8afe7a3b36b57f6497c60dc6184e9dfeb85c1
author Abseil Team <absl-team@google.com> 1705688946 -0800
committer Copybara-Service <copybara-worker@google.com> 1705688999 -0800

Prevent brace initialization of AlphaNum

This was not intended to be supported, and it has resulted in calls as `absl::StrCat({...})`, which are not supported and only work coincidentally for the first 4 arguments due to `absl::StrCat` having overloads that take `absl::AlphaNum` directly for those.

The existing situation prevents modifying the implementations of such functions to alternatives that do not have such overloads for those arguments.

PiperOrigin-RevId: 599872755
Change-Id: I02c90119b2b96a922cf7e3b5d5f02affe24a272d