From bfa259fb18a1e007080af10751b49acdfbc6e07c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Vladim=C3=ADr=20Vondru=C5=A1?= <mosra@centrum.cz>
Date: Sun, 19 Feb 2017 23:10:23 +0100
Subject: [PATCH] Math: min() and max() for pointer ranges.

The test is for the initializer list version, so it covers these as
well.
---
 src/Magnum/Math/Functions.h | 27 +++++++++++++++++++--------
 1 file changed, 19 insertions(+), 8 deletions(-)

diff --git a/src/Magnum/Math/Functions.h b/src/Magnum/Math/Functions.h
index e690baedb..e968ae8af 100644
--- a/src/Magnum/Math/Functions.h
+++ b/src/Magnum/Math/Functions.h
@@ -32,6 +32,7 @@
 #include <cmath>
 #include <type_traits>
 #include <utility>
+#include <Corrade/Containers/ArrayView.h>
 
 #include "Magnum/visibility.h"
 #include "Magnum/Math/Vector.h"
@@ -245,12 +246,17 @@ template<std::size_t size, class T> inline Vector<size, T> min(const Vector<size
     return out;
 }
 
+/** @brief Minimum of a range */
+template<class T> T min(Corrade::Containers::ArrayView<const T> range) {
+    T out(range[0]);
+    for(std::size_t i = 1; i != range.size(); ++i)
+        out = min(out, range[i]);
+    return out;
+}
+
 /** @overload */
 template<class T> inline T min(std::initializer_list<T> list) {
-    T out(*list.begin());
-    for(auto it = list.begin()+1; it != list.end(); ++it)
-        out = min(out, *it);
-    return out;
+    return min(Corrade::Containers::ArrayView<const T>{list.begin(), list.size()});
 }
 
 /**
@@ -281,12 +287,17 @@ template<std::size_t size, class T> Vector<size, T> max(const Vector<size, T>& v
     return out;
 }
 
+/** @brief Maximum of a range */
+template<class T> T max(Corrade::Containers::ArrayView<const T> range) {
+    T out(range[0]);
+    for(std::size_t i = 1; i != range.size(); ++i)
+        out = max(out, range[i]);
+    return out;
+}
+
 /** @overload */
 template<class T> inline T max(std::initializer_list<T> list) {
-    T out(*list.begin());
-    for(auto it = list.begin()+1; it != list.end(); ++it)
-        out = max(out, *it);
-    return out;
+    return max(Corrade::Containers::ArrayView<const T>{list.begin(), list.size()});
 }
 
 /**