From f54563ef071b72adf7dccefb1d0233ae982e1052 Mon Sep 17 00:00:00 2001
From: John Wellbelove <github@wellbelove.co.uk>
Date: Fri, 10 Jan 2020 13:27:05 +0000
Subject: [PATCH] Added use of C++11's 'alignof' keyword in 'alignment_of', if
 available

---
 include/etl/type_traits.h           | 14 ++++++++------
 include/etl/type_traits_generator.h |  4 +++-
 2 files changed, 11 insertions(+), 7 deletions(-)

diff --git a/include/etl/type_traits.h b/include/etl/type_traits.h
index 617b2f75..f1fdbc58 100644
--- a/include/etl/type_traits.h
+++ b/include/etl/type_traits.h
@@ -718,7 +718,9 @@ namespace etl
   //***************************************************************************
   /// Alignment templates.
   /// These require compiler specific intrinsics.
-#ifdef ETL_COMPILER_MICROSOFT
+#if ETL_CPP11_SUPPORTED
+  template <typename T> struct alignment_of : integral_constant<size_t, alignof(T)> { };
+#elif ETL_COMPILER_MICROSOFT
   template <typename T> struct alignment_of : integral_constant<size_t, size_t(__alignof(T))> {};
 #elif defined(ETL_COMPILER_IAR) || defined(ETL_COMPILER_TI)
   template <typename T> struct alignment_of : integral_constant<size_t, size_t(__ALIGNOF__(T))> {};
@@ -1304,7 +1306,7 @@ namespace etl
   struct is_one_of
   {
     static const bool value = etl::is_same<T, T1>::value ||
-                              etl::is_one_of<T, TRest...>::value;
+      etl::is_one_of<T, TRest...>::value;
   };
 
   template <typename T, typename T1>
@@ -1317,13 +1319,13 @@ namespace etl
   /// Template to determine if a type is one of a specified list.
   ///\ingroup types
   template <typename T,
-            typename T1, typename T2 = void, typename T3 = void, typename T4 = void,
-            typename T5 = void, typename T6 = void, typename T7 = void, typename T8 = void,
-            typename T9 = void, typename T10 = void, typename T11 = void, typename T12 = void,
+            typename T1, typename T2 = void, typename T3 = void, typename T4 = void, 
+            typename T5 = void, typename T6 = void, typename T7 = void, typename T8 = void, 
+            typename T9 = void, typename T10 = void, typename T11 = void, typename T12 = void, 
             typename T13 = void, typename T14 = void, typename T15 = void, typename T16 = void>
   struct is_one_of
   {
-    static const bool value =
+    static const bool value = 
         etlstd::is_same<T, T1>::value ||
         etlstd::is_same<T, T2>::value ||
         etlstd::is_same<T, T3>::value ||
diff --git a/include/etl/type_traits_generator.h b/include/etl/type_traits_generator.h
index 78a42254..e1ebc66b 100644
--- a/include/etl/type_traits_generator.h
+++ b/include/etl/type_traits_generator.h
@@ -730,7 +730,9 @@ namespace etl
   //***************************************************************************
   /// Alignment templates.
   /// These require compiler specific intrinsics.
-#ifdef ETL_COMPILER_MICROSOFT
+#if ETL_CPP11_SUPPORTED
+  template <typename T> struct alignment_of : integral_constant<size_t, alignof(T)> { };
+#elif ETL_COMPILER_MICROSOFT
   template <typename T> struct alignment_of : integral_constant<size_t, size_t(__alignof(T))> {};
 #elif defined(ETL_COMPILER_IAR) || defined(ETL_COMPILER_TI)
   template <typename T> struct alignment_of : integral_constant<size_t, size_t(__ALIGNOF__(T))> {};