From 4886cad1dad721d596e3b6c76f37e558a02f4a15 Mon Sep 17 00:00:00 2001
From: rr <endian.sign@gmail.com>
Date: Sat, 15 Mar 2025 19:36:48 +0300
Subject: [PATCH] Fix a possible undefined behaviour

---
 src/Blob.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/Blob.cpp b/src/Blob.cpp
index 32da131..98373a1 100644
--- a/src/Blob.cpp
+++ b/src/Blob.cpp
@@ -70,7 +70,9 @@ size_t Blob::length() const {
 
 std::vector<uint8_t> Blob::vector() const {
     std::vector<uint8_t> result(_length);
-    memcpy(&result[0], &_data[0], _length);
+    if (_length > 0) {
+        memcpy(result.data(), _data, _length);
+    }
     return result;
 }