From be834bb029aa2a5534e9d09b0b268d335341eacb Mon Sep 17 00:00:00 2001
From: Dmitry Vasilyev <dvassiliev@accesssoftek.com>
Date: Tue, 6 May 2025 12:48:52 +0400
Subject: [PATCH] Fixed libcxxabi Demangle
See #138564 for details.
---
libcxxabi/src/demangle/Utility.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/libcxxabi/src/demangle/Utility.h b/libcxxabi/src/demangle/Utility.h
index 511983ad40f7a..8829f3fa13a93 100644
--- a/libcxxabi/src/demangle/Utility.h
+++ b/libcxxabi/src/demangle/Utility.h
@@ -136,6 +136,8 @@ class OutputBuffer {
OutputBuffer &prepend(std::string_view R) {
size_t Size = R.size();
+ if (!Size)
+ return *this;
grow(Size);
std::memmove(Buffer + Size, Buffer, CurrentPosition);