From 67b87e45932df7a72cdec252f7bd5e70e469e7f1 Mon Sep 17 00:00:00 2001
From: Michael Legleux <legleux@users.noreply.github.com>
Date: Fri, 20 Feb 2026 03:09:05 +0900
Subject: [PATCH] fix: Add header for set_difference (#5197)

Fix `error C2039: 'set_difference': is not a member of 'std'`
---
 src/test/csf/Tx.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/test/csf/Tx.h b/src/test/csf/Tx.h
index b21481dcb..f87f38216 100644
--- a/src/test/csf/Tx.h
+++ b/src/test/csf/Tx.h
@@ -22,6 +22,7 @@
 #include <xrpl/beast/hash/uhash.h>
 #include <boost/container/flat_set.hpp>
 #include <boost/iterator/function_output_iterator.hpp>
+#include <algorithm>
 #include <map>
 #include <ostream>
 #include <sstream>