From fcb25fd02c2b7ec60d9f12005ee2422214ece2b7 Mon Sep 17 00:00:00 2001
From: Lorenz Meier <lm@inf.ethz.ch>
Date: Sun, 30 Aug 2015 12:52:58 +0200
Subject: [PATCH] Data validator: add missing header

---
 src/lib/ecl/validation/data_validator.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/lib/ecl/validation/data_validator.h b/src/lib/ecl/validation/data_validator.h
index 26d55af11e..de87a49f63 100644
--- a/src/lib/ecl/validation/data_validator.h
+++ b/src/lib/ecl/validation/data_validator.h
@@ -41,6 +41,8 @@
 
 #pragma once
 
+#include <cmath>
+
 class DataValidator {
 public:
 	DataValidator(DataValidator *prev_sibling = nullptr);