[Lldb-commits] [lldb] [lldb] Use const reference for range variables to improve performance (NFC) (PR #94840)

Shivam Gupta via lldb-commits lldb-commits at lists.llvm.org
Fri Jun 7 22:14:35 PDT 2024


https://github.com/xgupta created https://github.com/llvm/llvm-project/pull/94840

Cppcheck recommends using a const reference for range variables in a for-each loop. This avoids unnecessary copying of elements, improving performance.

Caught by cppcheck -
lldb/source/API/SBBreakpoint.cpp:717:22: performance: Range variable 'name' should be declared as const reference. [iterateByValue]

Fix #91213

>From 2206c6ec4f540b191b0dbf827a58836e35d19174 Mon Sep 17 00:00:00 2001
From: Shivam Gupta <shivam98.tkg at gmail.com>
Date: Sat, 8 Jun 2024 10:43:01 +0530
Subject: [PATCH] [lldb] Use const reference for range variables to improve
 performance (NFC)

Cppcheck recommends using a const reference for range variables in a for-each loop.
This avoids unnecessary copying of elements, improving performance.

Caught by cppcheck -
lldb/source/API/SBBreakpoint.cpp:717:22: performance: Range variable 'name' should be declared as const reference. [iterateByValue]

Fix #91213
---
 lldb/source/API/SBBreakpoint.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lldb/source/API/SBBreakpoint.cpp b/lldb/source/API/SBBreakpoint.cpp
index f1fb6f904f5f0..3d908047f9455 100644
--- a/lldb/source/API/SBBreakpoint.cpp
+++ b/lldb/source/API/SBBreakpoint.cpp
@@ -714,7 +714,7 @@ void SBBreakpoint::GetNames(SBStringList &names) {
         bkpt_sp->GetTarget().GetAPIMutex());
     std::vector<std::string> names_vec;
     bkpt_sp->GetNames(names_vec);
-    for (std::string name : names_vec) {
+    for (const std::string &name : names_vec) {
       names.AppendString(name.c_str());
     }
   }



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