From 6571ffa60781db21414f621c01d2c199184f7768 Mon Sep 17 00:00:00 2001
From: Andreas Fabri <andreas.fabri@geometryfactory.com>
Date: Fri, 22 Feb 2019 16:11:14 +0100
Subject: [PATCH] Include <iostream>

---
 .../examples/Modular_arithmetic/modular_filter.cpp               | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Modular_arithmetic/examples/Modular_arithmetic/modular_filter.cpp b/Modular_arithmetic/examples/Modular_arithmetic/modular_filter.cpp
index 324d58adb95..0155cc0c867 100644
--- a/Modular_arithmetic/examples/Modular_arithmetic/modular_filter.cpp
+++ b/Modular_arithmetic/examples/Modular_arithmetic/modular_filter.cpp
@@ -1,4 +1,5 @@
 #include <CGAL/config.h>
+#include <iostream>
 
 #ifdef CGAL_USE_GMP