From 30bd5e6cfe0a33e40d4fa10d628e4977afab5df1 Mon Sep 17 00:00:00 2001
From: Matthieu Schaller <matthieu.schaller@durham.ac.uk>
Date: Fri, 9 Nov 2018 15:50:48 +0000
Subject: [PATCH] Added function to take the max and min of 4 numbers.
---
src/minmax.h | 32 ++++++++++++++++++++++++++++++++
1 file changed, 32 insertions(+)
diff --git a/src/minmax.h b/src/minmax.h
index 90dd87968a..8964b4a477 100644
--- a/src/minmax.h
+++ b/src/minmax.h
@@ -71,4 +71,36 @@
max(_temp, _z); \
})
+/**
+ * @brief Minimum of four numbers
+ *
+ * This macro evaluates its arguments exactly once.
+ */
+#define min4(x, y, z, w) \
+ ({ \
+ const __typeof__(x) _x = (x); \
+ const __typeof__(y) _y = (y); \
+ const __typeof__(z) _z = (z); \
+ const __typeof__(w) _w = (w); \
+ const __typeof__(x) _temp1 = min(_x, _y); \
+ const __typeof__(x) _temp2 = min(_z, _w); \
+ min(_temp1, _temp2);\
+ })
+
+/**
+ * @brief Maximum of four numbers
+ *
+ * This macro evaluates its arguments exactly once.
+ */
+#define max4(x, y, z, w) \
+ ({ \
+ const __typeof__(x) _x = (x); \
+ const __typeof__(y) _y = (y); \
+ const __typeof__(z) _z = (z); \
+ const __typeof__(w) _w = (w); \
+ const __typeof__(x) _temp1 = max(_x, _y); \
+ const __typeof__(x) _temp2 = max(_z, _w); \
+ max(_temp1, _temp2);\
+ })
+
#endif /* SWIFT_MINMAX_H */
--
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