From 4cd6cc3e01eac7c6437163cfe2173739fbc2e35f Mon Sep 17 00:00:00 2001
From: Ayaz Salikhov <mathbunnyru@users.noreply.github.com>
Date: Wed, 21 Jan 2026 23:52:22 +0000
Subject: [PATCH] fix: Include `<functional>` header in `Number.h` (#6254)

The `Number.h` header file now has `std::reference_wrapper` from `<functional>`, but the include is missing, causing downstream build problems. This change adds the header.
---
 include/xrpl/basics/Number.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/xrpl/basics/Number.h b/include/xrpl/basics/Number.h
index d1ef749784..2f467fb036 100644
--- a/include/xrpl/basics/Number.h
+++ b/include/xrpl/basics/Number.h
@@ -4,6 +4,7 @@
 #include <xrpl/beast/utility/instrumentation.h>
 
 #include <cstdint>
+#include <functional>
 #include <limits>
 #include <optional>
 #include <ostream>