Sort includes
diff --git a/include/span.h b/include/span.h
index 74da1aa..b832e19 100644
--- a/include/span.h
+++ b/include/span.h
@@ -19,18 +19,18 @@
#ifndef GSL_SPAN_H
#define GSL_SPAN_H
-#include <new>
-#include <stdexcept>
+#include <algorithm>
+#include <array>
#include <cstddef>
#include <cstdint>
+#include <functional>
+#include <iterator>
#include <limits>
+#include <new>
#include <numeric>
+#include <stdexcept>
#include <type_traits>
#include <utility>
-#include <array>
-#include <iterator>
-#include <algorithm>
-#include <functional>
#include "fail_fast.h"
#ifdef _MSC_VER