From: Joel Rosdahl <joel@rosdahl.net>
Date: Sat, 10 Feb 2024 09:14:44 +0000 (+0100)
Subject: perf: Avoid value initialization of data in util::Bytes
X-Git-Tag: v4.10~100
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d3512ae3e7418cf75c5c57ee7d8e09ab576020c4;p=thirdparty%2Fccache.git

perf: Avoid value initialization of data in util::Bytes
---

diff --git a/src/util/Bytes.cpp b/src/util/Bytes.cpp
index 1b4007e5..32d18188 100644
--- a/src/util/Bytes.cpp
+++ b/src/util/Bytes.cpp
@@ -1,4 +1,4 @@
-// Copyright (C) 2022-2023 Joel Rosdahl and other contributors
+// Copyright (C) 2022-2024 Joel Rosdahl and other contributors
 //
 // See doc/AUTHORS.adoc for a complete list of contributors.
 //
@@ -120,7 +120,8 @@ void
 Bytes::resize(size_t size) noexcept
 {
   if (size > m_capacity) {
-    auto new_data = std::make_unique<uint8_t[]>(size);
+    // In C++20, use std::make_unique_for_overwrite instead.
+    auto new_data = std::unique_ptr<uint8_t[]>(new uint8_t[size]);
     if (m_size > 0) {
       std::memcpy(new_data.get(), m_data.get(), m_size);
     }