From 313781eff45b5fd1716d944b8ce02180cf7ba703 Mon Sep 17 00:00:00 2001
From: Phil Ratzloff <pratzl@outlook.com>
Date: Wed, 25 Mar 2026 23:04:17 -0400
Subject: [PATCH] D3128r4: add predecessor/distance function object change to
 revision history

---
 D3128_Algorithms/tex/revision.tex | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/D3128_Algorithms/tex/revision.tex b/D3128_Algorithms/tex/revision.tex
index a9f698b..7c86b7a 100644
--- a/D3128_Algorithms/tex/revision.tex
+++ b/D3128_Algorithms/tex/revision.tex
@@ -80,4 +80,8 @@ \subsection*{\paperno r4}
                   \item Link Analysis: Jaccard Coefficient.
                   \item Minimum Spanning Tree: Kruskal, Inplace Kruskal, and Prim.
             \end{itemize}
+      \item Replace raw container (range) predecessor and distance parameters with function objects
+            (\tcode{PredecessorFn}, \tcode{DistanceFn}) constrained by new \tcode{predecessor_fn_for} and
+            \tcode{distance_fn_for} concepts, enabling flexible storage strategies for per-vertex properties.
+            Add \tcode{container_value_fn} adaptor and \tcode{_null_predecessor} sentinel for convenience.
 \end{itemize}