From 1f443d3fdb93e71a70244b7521ae0f4c40601351 Mon Sep 17 00:00:00 2001
From: Anton Khirnov <anton@khirnov.net>
Date: Fri, 27 Aug 2021 13:35:52 +0200
Subject: Add public API for evaluating the residual at an arbitrary location.

---
 common.h | 1 +
 1 file changed, 1 insertion(+)

(limited to 'common.h')

diff --git a/common.h b/common.h
index 16dd7ef..55359ae 100644
--- a/common.h
+++ b/common.h
@@ -18,6 +18,7 @@
 #ifndef TEUKOLSKY_DATA_COMMON_H
 #define TEUKOLSKY_DATA_COMMON_H
 
+#define ABS(x) (((x) >= 0) ? (x) : -(x))
 #define SQR(x) ((x) * (x))
 #define SGN(x) ((x) >= 0.0 ? 1.0 : -1.0)
 #define MAX(x, y) ((x) > (y) ? (x) : (y))
-- 
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