From 8f0073eda5855244babab50e11ae6e5bdb91540f Mon Sep 17 00:00:00 2001
From: m-holger <m.holger@qpdf.org>
Date: Tue, 19 Aug 2025 20:14:48 +0100
Subject: [PATCH] Refactor `NNTreeIterator::lastPathElement`: simplify logic with conditional `std::prev` usage.

---
 libqpdf/NNTree.cc | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/libqpdf/NNTree.cc b/libqpdf/NNTree.cc
index 8a0bbbc..78098d6 100644
--- a/libqpdf/NNTree.cc
+++ b/libqpdf/NNTree.cc
@@ -337,11 +337,7 @@ NNTreeIterator::split(Dictionary to_split, std::list<PathElement>::iterator pare
 std::list<NNTreeIterator::PathElement>::iterator
 NNTreeIterator::lastPathElement()
 {
-    auto result = path.end();
-    if (!path.empty()) {
-        --result;
-    }
-    return result;
+    return path.empty() ? path.end() : std::prev(path.end());
 }
 
 void
--
libgit2 0.21.4