diff --git a/examples/ArmTimerCallbacks - C++/ArmTimerCallbacks.uvoptx b/examples/ArmTimerCallbacks - C++/ArmTimerCallbacks.uvoptx
index 0315aa0b..52e14341 100644
--- a/examples/ArmTimerCallbacks - C++/ArmTimerCallbacks.uvoptx	
+++ b/examples/ArmTimerCallbacks - C++/ArmTimerCallbacks.uvoptx	
@@ -140,7 +140,7 @@
         <SetRegEntry>
           <Number>0</Number>
           <Key>ST-LINKIII-KEIL_SWO</Key>
-          <Name>-U066CFF485550707267024134 -O207 -SF4000 -C0 -A0 -I0 -HNlocalhost -HP7184 -P2 -N00("ARM CoreSight SW-DP") -D00(2BA01477) -L00(0) -TO18 -TC10000000 -TP21 -TDS8007 -TDT0 -TDC1F -TIEFFFFFFFF -TIP8 -FO7 -FD20000000 -FC1000 -FN1 -FF0STM32F4xx_512.FLM -FS08000000 -FL080000 -FP0($$Device:STM32F401RETx$CMSIS\Flash\STM32F4xx_512.FLM)</Name>
+          <Name>-U066CFF485550707267024134 -O207 -SF10000 -C0 -A0 -I0 -HNlocalhost -HP7184 -P2 -N00("ARM CoreSight SW-DP (ARM Core") -D00(2BA01477) -L00(0) -TO131090 -TC10000000 -TT10000000 -TP21 -TDS8007 -TDT0 -TDC1F -TIEFFFFFFFF -TIP8 -FO7 -FD20000000 -FC1000 -FN1 -FF0STM32F4xx_512.FLM -FS08000000 -FL080000 -FP0($$Device:STM32F401RETx$CMSIS\Flash\STM32F4xx_512.FLM)</Name>
         </SetRegEntry>
         <SetRegEntry>
           <Number>0</Number>
diff --git a/examples/ArmTimerCallbacks - C++/ArmTimerCallbacks.uvprojx b/examples/ArmTimerCallbacks - C++/ArmTimerCallbacks.uvprojx
index 04579270..f89a79e0 100644
--- a/examples/ArmTimerCallbacks - C++/ArmTimerCallbacks.uvprojx	
+++ b/examples/ArmTimerCallbacks - C++/ArmTimerCallbacks.uvprojx	
@@ -10,8 +10,8 @@
       <TargetName>Target 1</TargetName>
       <ToolsetNumber>0x4</ToolsetNumber>
       <ToolsetName>ARM-ADS</ToolsetName>
-      <pCCUsed>5060750::V5.06 update 6 (build 750)::ARMCC</pCCUsed>
-      <uAC6>0</uAC6>
+      <pCCUsed>6130001::V6.13.1::.\ARMCLANG</pCCUsed>
+      <uAC6>1</uAC6>
       <TargetOption>
         <TargetCommonOption>
           <Device>STM32F401RETx</Device>
@@ -312,7 +312,7 @@
           </ArmAdsMisc>
           <Cads>
             <interw>1</interw>
-            <Optim>1</Optim>
+            <Optim>7</Optim>
             <oTime>0</oTime>
             <SplitLS>0</SplitLS>
             <OneElfS>1</OneElfS>
@@ -321,7 +321,7 @@
             <PlainCh>1</PlainCh>
             <Ropi>0</Ropi>
             <Rwpi>0</Rwpi>
-            <wLevel>2</wLevel>
+            <wLevel>3</wLevel>
             <uThumb>0</uThumb>
             <uSurpInc>0</uSurpInc>
             <uC99>1</uC99>
@@ -336,7 +336,7 @@
             <v6Rtti>0</v6Rtti>
             <VariousControls>
               <MiscControls></MiscControls>
-              <Define></Define>
+              <Define>ETL_NO_STL __STDC_LIMIT_MACROS</Define>
               <Undefine></Undefine>
               <IncludePath>..\..\include;..\ArmTimerCallbacks - C++</IncludePath>
             </VariousControls>
diff --git a/examples/ArmTimerCallbacks - C++/etl_profile.h b/examples/ArmTimerCallbacks - C++/etl_profile.h
index 6362a416..fe7052fb 100644
--- a/examples/ArmTimerCallbacks - C++/etl_profile.h	
+++ b/examples/ArmTimerCallbacks - C++/etl_profile.h	
@@ -8,22 +8,8 @@
 #define ETL_IVECTOR_REPAIR_ENABLE
 #define ETL_IDEQUE_REPAIR_ENABLE
 #define ETL_CALLBACK_TIMER_USE_ATOMIC_LOCK
-#define ETL_NO_STL
+//#define ETL_NO_STL
 
-#if (__CC_ARM == 1)
-  // ARM5 compiler
-  #if defined(ETL_NO_STL)
-  #include "etl/profiles/armv5_no_stl.h"
-  #else
-  #include "etl/profiles/armv5.h"
-  #endif
-#else
-  // ARM6 compiler
-  #if defined(ETL_NO_STL)
-  #include "etl/profiles/armv6_no_stl.h"
-  #else
-  #include "etl/profiles/armv6.h"
-  #endif
-#endif
+#include "etl/profiles/auto.h"
 
 #endif
diff --git a/examples/ArmTimerCallbacks - C++/main.cpp b/examples/ArmTimerCallbacks - C++/main.cpp
index 4c525f4a..7f002981 100644
--- a/examples/ArmTimerCallbacks - C++/main.cpp	
+++ b/examples/ArmTimerCallbacks - C++/main.cpp	
@@ -18,8 +18,6 @@ extern "C"
 #include "etl/vector.h"
 #include "etl/iterator.h"
 
-static bool b = etl::is_input_iterator<int*>::value;
-
 struct FP
 {
   void (*function)();
@@ -33,7 +31,6 @@ void register_poweroff_callback(void (*function)())
   power_callbacks.push_back(fp);
 }
 
-
 const int N_TIMERS = 4;
 
 etl::callback_timer<N_TIMERS> callback_timer;
@@ -130,12 +127,6 @@ int main()
    
   LED_Initialize();
   Buttons_Initialize();
-
-  long int v = __cplusplus;
-  
-  char16_t c16;
-  
-  int* p = nullptr;
   
   // The LEDs will start flashing fast after 2 seconds.
   // After another 5 seconds they will start flashing slower.  
diff --git a/include/etl/algorithm.h b/include/etl/algorithm.h
index 7c36bd9e..690a802b 100644
--- a/include/etl/algorithm.h
+++ b/include/etl/algorithm.h
@@ -46,6 +46,7 @@ SOFTWARE.
 #include "platform.h"
 #include "iterator.h"
 #include "type_traits.h"
+#include "container.h"
 
 namespace etl
 {
@@ -1180,7 +1181,7 @@ namespace etl
   {
     for (TIterator itr = first; itr != last; ++itr)
     {
-      ETL_STD::rotate(ETL_STD::upper_bound(first, itr, *itr, compare), itr, ETL_STD::next(itr));
+      ETL_STD::rotate(ETL_STD::upper_bound(first, itr, *itr, compare), itr, etl::next(itr));
     }
   }
 
diff --git a/include/etl/alignment.h b/include/etl/alignment.h
index 8b308cb6..b2e53866 100644
--- a/include/etl/alignment.h
+++ b/include/etl/alignment.h
@@ -180,11 +180,15 @@ namespace etl
         return reinterpret_cast<const T*>(data);
       }
 
+#if ETL_CPP11_SUPPORTED
+      alignas(ALIGNMENT) char data[LENGTH];
+#else
       union
       {
         char data[LENGTH];
         typename etl::type_with_alignment<ALIGNMENT>::type etl_alignment_type; // A POD type that has the same alignment as ALIGNMENT.
       };
+#endif
     };
   };
 
diff --git a/include/etl/callback_timer.h b/include/etl/callback_timer.h
index 282fa863..487f5789 100644
--- a/include/etl/callback_timer.h
+++ b/include/etl/callback_timer.h
@@ -446,38 +446,38 @@ namespace etl
       return id;
     }
 
-    //*******************************************
-    /// Register a timer.
-    //*******************************************
+      //*******************************************
+      /// Register a timer.
+      //*******************************************
 #if ETL_CPP11_SUPPORTED
-    etl::timer::id::type register_timer(etl::delegate<void()>& callback_,
-                                        uint32_t               period_,
-                                        bool                   repeating_)
-    {
-        etl::timer::id::type id = etl::timer::id::NO_TIMER;
+      etl::timer::id::type register_timer(etl::delegate<void()>& callback_,
+                                          uint32_t               period_,
+                                          bool                   repeating_)
+      {
+          etl::timer::id::type id = etl::timer::id::NO_TIMER;
 
-        bool is_space = (registered_timers < MAX_TIMERS);
+          bool is_space = (registered_timers < MAX_TIMERS);
 
-        if (is_space)
-        {
-            // Search for the free space.
-            for (uint_least8_t i = 0; i < MAX_TIMERS; ++i)
-            {
-                etl::callback_timer_data& timer = timer_array[i];
+          if (is_space)
+          {
+              // Search for the free space.
+              for (uint_least8_t i = 0; i < MAX_TIMERS; ++i)
+              {
+                  etl::callback_timer_data& timer = timer_array[i];
 
-                if (timer.id == etl::timer::id::NO_TIMER)
-                {
-                    // Create in-place.
-                    new (&timer) callback_timer_data(i, callback_, period_, repeating_);
-                    ++registered_timers;
-                    id = i;
-                    break;
-                }
-            }
-        }
+                  if (timer.id == etl::timer::id::NO_TIMER)
+                  {
+                      // Create in-place.
+                      new (&timer) callback_timer_data(i, callback_, period_, repeating_);
+                      ++registered_timers;
+                      id = i;
+                      break;
+                  }
+              }
+          }
 
-        return id;
-    }
+          return id;
+      }
 #endif
 
     //*******************************************
diff --git a/include/etl/platform.h b/include/etl/platform.h
index 7d6186e4..c2e9cd14 100644
--- a/include/etl/platform.h
+++ b/include/etl/platform.h
@@ -38,8 +38,10 @@ SOFTWARE.
 #define ETL_8BIT_SUPPORT (CHAR_BIT == 8)
 
 // Define a debug macro
-#if defined(_DEBUG) || defined(DEBUG)
-#define ETL_DEBUG
+#if !defined(ETL_DEBUG)
+  #if defined(_DEBUG) || defined(DEBUG)
+    #define ETL_DEBUG
+  #endif
 #endif
 
 // Undefine all of the macros.
@@ -62,25 +64,23 @@ SOFTWARE.
 
 #include "etl_profile.h"
 
-// The macros below are dependent on the profile.
-
-#if defined(ETL_COMPILER_GCC)
-  #define ETL_COMPILER_VERSION      __GNUC__
-  #define ETL_COMPILER_FULL_VERSION ((__GNUC__ * 10000) + (__GNUC_MINOR__ * 100) + __GNUC_PATCHLEVEL__)
-#elif defined(ETL_COMPILER_MICROSOFT)
-  #define ETL_COMPILER_VERSION      _MSC_VER
-  #define ETL_COMPILER_FULL_VERSION _MSC_FULL_VER
+#if defined(ETL_AUTO_DETERMINE_COMPILER_INFO)
+  // Figure out things about the compiler.
+  #include "profiles/determine_compiler.h"
+  #include "profiles/determine_compiler_version.h"
+  #include "profiles/determine_compiler_language_support.h"
 #endif
 
+// The macros below are dependent on the profile.
 #if ETL_CPP11_SUPPORTED
   #define ETL_CONSTEXPR constexpr
-  #define ETL_CONST     constexpr
+  #define ETL_CONST_OR_CONSTEXPR constexpr
   #define ETL_DELETE    = delete
   #define ETL_NOEXCEPT  noexcept
   #define ETL_NOEXCEPT_EXPR(expression) noexcept(expression)
 #else
   #define ETL_CONSTEXPR
-  #define ETL_CONST     const
+  #define ETL_CONST_OR_CONSTEXPR const
   #define ETL_DELETE
   #define ETL_NOEXCEPT
   #define ETL_NOEXCEPT_EXPR(expression)
diff --git a/test/ecl_user.h b/include/etl/profiles/auto.h
similarity index 63%
rename from test/ecl_user.h
rename to include/etl/profiles/auto.h
index cc2c8f03..48cb7cc8 100644
--- a/test/ecl_user.h
+++ b/include/etl/profiles/auto.h
@@ -1,3 +1,5 @@
+///\file
+
 /******************************************************************************
 The MIT License(MIT)
 
@@ -5,7 +7,7 @@ Embedded Template Library.
 https://github.com/ETLCPP/etl
 https://www.etlcpp.com
 
-Copyright(c) 2017 jwellbelove
+Copyright(c) 2019 jwellbelove
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files(the "Software"), to deal
@@ -26,23 +28,9 @@ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 SOFTWARE.
 ******************************************************************************/
 
-#ifndef ECL_USER_INCLUDED
-#define ECL_USER_INCLUDED
+#ifndef ETL_AUTO_PROFILE_INCLUDED
+#define ETL_AUTO_PROFILE_INCLUDED
 
-#include <stdint.h>
-
-extern uint32_t timer_semaphore;
-
-#if defined(_MSC_VER)
-  #include <Windows.h>
-
-  #define ECL_TIMER_DISABLE_PROCESSING InterlockedIncrement((volatile long*)&timer_semaphore)
-  #define ECL_TIMER_ENABLE_PROCESSING  InterlockedDecrement((volatile long*)&timer_semaphore)
-  #define ECL_TIMER_PROCESSING_ENABLED (InterlockedAdd((volatile long*)&timer_semaphore, 0) == 0)
-#else
-  #define ECL_TIMER_DISABLE_PROCESSING __sync_fetch_and_add(&timer_semaphore, 1)
-  #define ECL_TIMER_ENABLE_PROCESSING  __sync_fetch_and_sub(&timer_semaphore, 1)
-  #define ECL_TIMER_PROCESSING_ENABLED (__sync_fetch_and_add(&timer_semaphore, 0) == 0)
-#endif
+#define ETL_AUTO_DETERMINE_COMPILER_INFO
 
 #endif
diff --git a/include/etl/profiles/auto_no_stl.h b/include/etl/profiles/auto_no_stl.h
new file mode 100644
index 00000000..3ccafcfc
--- /dev/null
+++ b/include/etl/profiles/auto_no_stl.h
@@ -0,0 +1,37 @@
+///\file
+
+/******************************************************************************
+The MIT License(MIT)
+
+Embedded Template Library.
+https://github.com/ETLCPP/etl
+https://www.etlcpp.com
+
+Copyright(c) 2019 jwellbelove
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files(the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and / or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions :
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+******************************************************************************/
+
+#ifndef ETL_AUTO_NO_STL_INCLUDED
+#define ETL_AUTO_NO_STL_INCLUDED
+
+#define ETL_AUTO_DETERMINE_COMPILER_INFO
+#define ETL_NO_STL
+
+#endif
diff --git a/include/etl/profiles/determine_compiler.h b/include/etl/profiles/determine_compiler.h
new file mode 100644
index 00000000..26665bf2
--- /dev/null
+++ b/include/etl/profiles/determine_compiler.h
@@ -0,0 +1,121 @@
+///\file
+
+/******************************************************************************
+The MIT License(MIT)
+
+Embedded Template Library.
+https://github.com/ETLCPP/etl
+https://www.etlcpp.com
+
+Copyright(c) 2019 jwellbelove
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files(the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and / or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions :
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+******************************************************************************/
+
+#ifndef ETL_DETERMINE_COMPILER_H_INCLUDED
+#define ETL_DETERMINE_COMPILER_H_INCLUDED
+
+#if !defined(ETL_COMPILER_GCC) && \
+    !defined(ETL_COMPILER_MICROSOFT) && \
+    !defined(ETL_COMPILER_ARM5) && \
+    !defined(ETL_COMPILER_ARM6) && \
+    !defined(ETL_COMPILER_ARM7) && \
+    !defined(ETL_COMPILER_CLANG) && \
+    !defined(ETL_COMPILER_GREEN_HILLS) && \
+    !defined(ETL_COMPILER_IAR) && \
+    !defined(ETL_COMPILER_INTEL) && \
+    !defined(ETL_COMPILER_TEXAS_INSTRUMENTS) && \
+    !defined(ETL_COMPILER_GENERIC)
+
+  #if !defined(ETL_COMPILER_TYPE_DETECTED) && !defined(ETL_COMPILER_ARM5)
+    #if defined(__CC_ARM)
+      #define ETL_COMPILER_ARM5
+      #define ETL_COMPILER_TYPE_DETECTED
+    #endif
+  #endif
+
+  #if !defined(ETL_COMPILER_TYPE_DETECTED) && !defined(ETL_COMPILER_ARM6)
+    #if defined(__ARMCOMPILER_VERSION) && (__ARMCOMPILER_VERSION >= 6000000L) && (__ARMCOMPILER_VERSION < 7000000L)
+      #define ETL_COMPILER_ARM6
+      #define ETL_COMPILER_TYPE_DETECTED
+    #endif
+  #endif
+
+  #if !defined(ETL_COMPILER_TYPE_DETECTED) && !defined(ETL_COMPILER_ARM7)
+    #if defined(__ARMCOMPILER_VERSION) && (__ARMCOMPILER_VERSION >= 7000000L) && (__ARMCOMPILER_VERSION < 8000000L)
+      #define ETL_COMPILER_ARM7
+      #define ETL_COMPILER_TYPE_DETECTED
+    #endif
+  #endif
+
+  #if !defined(ETL_COMPILER_TYPE_DETECTED) && !defined(ETL_COMPILER_GCC)
+    #if defined(__GNUC__)
+      #define ETL_COMPILER_GCC
+      #define ETL_COMPILER_TYPE_DETECTED
+    #endif
+  #endif
+
+  #if !defined(ETL_COMPILER_TYPE_DETECTED) && !defined(ETL_COMPILER_CLANG)
+    #if defined(__clang__) || defined(__llvm__)
+      #define ETL_COMPILER_CLANG
+      #define ETL_COMPILER_TYPE_DETECTED
+    #endif
+  #endif
+
+  #if !defined(ETL_COMPILER_TYPE_DETECTED) && !defined(ETL_COMPILER_GREEN_HILLS)
+    #if defined(__ghs__)
+      #define ETL_COMPILER_GREEN_HILLS
+      #define ETL_COMPILER_TYPE_DETECTED
+    #endif
+  #endif
+
+  #if !defined(ETL_COMPILER_TYPE_DETECTED) && !defined(ETL_COMPILER_IAR)
+    #if defined(__IAR_SYSTEMS_ICC__)
+      #define ETL_COMPILER_IAR
+      #define ETL_COMPILER_TYPE_DETECTED
+    #endif
+  #endif
+
+  #if !defined(ETL_COMPILER_TYPE_DETECTED) && !defined(ETL_COMPILER_INTEL)
+    #if defined(__INTEL_COMPILER)
+      #define ETL_COMPILER_INTEL
+      #define ETL_COMPILER_TYPE_DETECTED
+    #endif
+  #endif
+
+  #if !defined(ETL_COMPILER_TYPE_DETECTED) && !defined(ETL_COMPILER_TEXAS_INSTRUMENTS)
+    #if defined(__TI_COMPILER_VERSION__)
+      #define ETL_COMPILER_TEXAS_INSTRUMENTS
+      #define ETL_COMPILER_TYPE_DETECTED
+    #endif
+  #endif
+
+  #if !defined(ETL_COMPILER_TYPE_DETECTED) && !defined(ETL_COMPILER_MICROSOFT)
+    #if defined(_MSC_VER)
+      #define ETL_COMPILER_MICROSOFT
+      #define ETL_COMPILER_TYPE_DETECTED
+    #endif
+  #endif
+
+  #if !defined(ETL_COMPILER_TYPE_DETECTED)
+    #define ETL_COMPILER_GENERIC
+  #endif
+#endif
+
+#endif
diff --git a/include/etl/profiles/determine_compiler_language_support.h b/include/etl/profiles/determine_compiler_language_support.h
new file mode 100644
index 00000000..836b9116
--- /dev/null
+++ b/include/etl/profiles/determine_compiler_language_support.h
@@ -0,0 +1,58 @@
+///\file
+
+/******************************************************************************
+The MIT License(MIT)
+
+Embedded Template Library.
+https://github.com/ETLCPP/etl
+https://www.etlcpp.com
+
+Copyright(c) 2019 jwellbelove
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files(the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and / or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions :
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+******************************************************************************/
+
+#ifndef ETL_DETERMINE_COMPILER_LANGUAGE_SUPPORT_H_INCLUDED
+#define ETL_DETERMINE_COMPILER_LANGUAGE_SUPPORT_H_INCLUDED
+
+#ifdef __cplusplus
+  #if defined(ETL_COMPILER_MICROSOFT)
+    #define ETL_CPP11_SUPPORTED (_MSC_VER >= 1600)
+    #define ETL_CPP14_SUPPORTED (_MSC_VER >= 1900)
+    #define ETL_CPP17_SUPPORTED (_MSC_VER >= 1914)
+  #elif defined(ETL_COMPILER_ARM5)
+    #define ETL_CPP11_SUPPORTED 0
+    #define ETL_CPP14_SUPPORTED 0
+    #define ETL_CPP17_SUPPORTED 0
+  #else
+    #define ETL_CPP11_SUPPORTED (__cplusplus >= 201103L)
+    #define ETL_CPP14_SUPPORTED (__cplusplus >= 201402L)
+    #define ETL_CPP17_SUPPORTED (__cplusplus >= 201703L)
+  #endif
+#else
+  #define ETL_CPP11_SUPPORTED 0
+  #define ETL_CPP14_SUPPORTED 0
+  #define ETL_CPP17_SUPPORTED 0
+#endif
+
+#define ETL_NO_NULLPTR_SUPPORT                     !ETL_CPP11_SUPPORTED
+#define ETL_NO_LARGE_CHAR_SUPPORT                  !ETL_CPP11_SUPPORTED
+#define ETL_CPP11_TYPE_TRAITS_IS_TRIVIAL_SUPPORTED ETL_CPP14_SUPPORTED
+
+#endif
diff --git a/include/etl/profiles/determine_compiler_version.h b/include/etl/profiles/determine_compiler_version.h
new file mode 100644
index 00000000..38af2b18
--- /dev/null
+++ b/include/etl/profiles/determine_compiler_version.h
@@ -0,0 +1,71 @@
+///\file
+
+/******************************************************************************
+The MIT License(MIT)
+
+Embedded Template Library.
+https://github.com/ETLCPP/etl
+https://www.etlcpp.com
+
+Copyright(c) 2019 jwellbelove
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files(the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and / or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions :
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+******************************************************************************/
+
+#ifndef ETL_DETERMINE_COMPILER_VERSION_H_INCLUDED
+#define ETL_DETERMINE_COMPILER_VERSION_H_INCLUDED
+
+#if !defined(ETL_COMPILER_VERSION) && !defined(ETL_COMPILER_FULL_VERSION)
+  #if defined(ETL_COMPILER_GCC)
+    #define ETL_COMPILER_VERSION      __GNUC__
+    #define ETL_COMPILER_FULL_VERSION ((__GNUC__ * 10000) + (__GNUC_MINOR__ * 100) + __GNUC_PATCHLEVEL__)
+  #elif defined(ETL_COMPILER_MICROSOFT)
+    #define ETL_COMPILER_VERSION      _MSC_VER
+    #define ETL_COMPILER_FULL_VERSION _MSC_FULL_VER
+  #elif defined(ETL_COMPILER_ARM5)
+    #define ETL_COMPILER_VERSION      __ARMCC_VERSION
+    #define ETL_COMPILER_FULL_VERSION __ARMCC_VERSION
+  #elif defined(ETL_COMPILER_ARM6)
+    #define ETL_COMPILER_VERSION      __ARMCOMPILER_VERSION
+    #define ETL_COMPILER_FULL_VERSION __ARMCOMPILER_VERSION
+  #elif defined(ETL_COMPILER_ARM7)
+    #define ETL_COMPILER_VERSION      __ARMCOMPILER_VERSION
+    #define ETL_COMPILER_FULL_VERSION __ARMCOMPILER_VERSION
+  #elif defined(ETL_COMPILER_CLANG)
+    #define ETL_COMPILER_VERSION      __clang_version__
+    #define ETL_COMPILER_FULL_VERSION ((__clang_major__ * 10000) + (__clang_minor__ * 100) + __clang_patchlevel__)
+  #elif defined(ETL_COMPILER_GREEN_HILLS)
+    #define ETL_COMPILER_VERSION      __GHS_VERSION_NUMBER__
+    #define ETL_COMPILER_FULL_VERSION __GHS_VERSION_NUMBER__
+  #elif defined(ETL_COMPILER_IAR)
+    #define ETL_COMPILER_VERSION      __VER__
+    #define ETL_COMPILER_FULL_VERSION __VER__
+  #elif defined(ETL_COMPILER_INTEL)
+    #define ETL_COMPILER_VERSION      __INTEL_COMPILER
+    #define ETL_COMPILER_FULL_VERSION __INTEL_COMPILER
+  #elif defined(ETL_COMPILER_TEXAS_INSTRUMENTS)
+    #define ETL_COMPILER_VERSION      __TI_COMPILER_VERSION__
+    #define ETL_COMPILER_FULL_VERSION __TI_COMPILER_VERSION__
+  #else
+    #define ETL_COMPILER_VERSION      0
+    #define ETL_COMPILER_FULL_VERSION 0
+  #endif
+#endif
+
+#endif
diff --git a/include/etl/stl/alternate/algorithm.h b/include/etl/stl/alternate/algorithm.h
index 7b693abc..e9c880f5 100644
--- a/include/etl/stl/alternate/algorithm.h
+++ b/include/etl/stl/alternate/algorithm.h
@@ -114,7 +114,7 @@ namespace etlstd
 
     difference_t count = (se - sb);
 
-    return TIterator2(memcpy(db, sb, sizeof(value_t) * count)) + count;
+    return TIterator2(memmove(db, sb, sizeof(value_t) * count)) + count;
   }
 
   // Other iterator
@@ -156,7 +156,7 @@ namespace etlstd
   {
     typedef typename etlstd::iterator_traits<TIterator1>::value_type value_t;
 
-    return TIterator2(memcpy(db, sb, sizeof(value_t) * count)) + count;
+    return TIterator2(memmove(db, sb, sizeof(value_t) * count)) + count;
   }
 
   // Other iterator
diff --git a/include/etl/stl/alternate/limits.h b/include/etl/stl/alternate/limits.h
index ec8df96a..2b73be81 100644
--- a/include/etl/stl/alternate/limits.h
+++ b/include/etl/stl/alternate/limits.h
@@ -71,45 +71,45 @@ namespace etlstd
   class etl_integral_type
   {
   public:
-    static ETL_CONST bool is_specialized = true;
+    static ETL_CONST_OR_CONSTEXPR bool is_specialized = true;
 
-    static ETL_CONST int max_digits10 = 0;
+    static ETL_CONST_OR_CONSTEXPR int max_digits10 = 0;
 
-    static ETL_CONST bool is_integer = true;
-    static ETL_CONST bool is_exact = true;
+    static ETL_CONST_OR_CONSTEXPR bool is_integer = true;
+    static ETL_CONST_OR_CONSTEXPR bool is_exact = true;
 
-    static ETL_CONST int radix = 2;
+    static ETL_CONST_OR_CONSTEXPR int radix = 2;
     static ETL_CONSTEXPR T epsilon() { return 0; }
     static ETL_CONSTEXPR T round_error() { return 0; }
 
-    static ETL_CONST int digits = (CHAR_BIT * sizeof(T)) - (etl::is_signed<T>::value ? 1 : 0);
-    static ETL_CONST int digits10 = ETL_LOG2(digits);
+    static ETL_CONST_OR_CONSTEXPR int digits = (CHAR_BIT * sizeof(T)) - (etl::is_signed<T>::value ? 1 : 0);
+    static ETL_CONST_OR_CONSTEXPR int digits10 = ETL_LOG2(digits);
 
-    static ETL_CONST bool is_signed = etl::is_signed<T>::value;
+    static ETL_CONST_OR_CONSTEXPR bool is_signed = etl::is_signed<T>::value;
 
-    static ETL_CONST int min_exponent = 0;
-    static ETL_CONST int min_exponent10 = 0;
-    static ETL_CONST int max_exponent = 0;
-    static ETL_CONST int max_exponent10 = 0;
+    static ETL_CONST_OR_CONSTEXPR int min_exponent = 0;
+    static ETL_CONST_OR_CONSTEXPR int min_exponent10 = 0;
+    static ETL_CONST_OR_CONSTEXPR int max_exponent = 0;
+    static ETL_CONST_OR_CONSTEXPR int max_exponent10 = 0;
 
-    static ETL_CONST bool has_infinity = false;
-    static ETL_CONST bool has_quiet_NaN = false;
-    static ETL_CONST bool has_signaling_NaN = false;
-    static ETL_CONST float_denorm_style has_denorm = denorm_absent;
-    static ETL_CONST bool has_denorm_loss = false;
+    static ETL_CONST_OR_CONSTEXPR bool has_infinity = false;
+    static ETL_CONST_OR_CONSTEXPR bool has_quiet_NaN = false;
+    static ETL_CONST_OR_CONSTEXPR bool has_signaling_NaN = false;
+    static ETL_CONST_OR_CONSTEXPR float_denorm_style has_denorm = denorm_absent;
+    static ETL_CONST_OR_CONSTEXPR bool has_denorm_loss = false;
 
     static ETL_CONSTEXPR T infinity() { return 0; }
     static ETL_CONSTEXPR T quiet_NaN() { return 0; }
     static ETL_CONSTEXPR T signaling_NaN() { return 0; }
     static ETL_CONSTEXPR T denorm_min() { return 0; }
 
-    static ETL_CONST bool is_iec559 = false;
-    static ETL_CONST bool is_bounded = true;
-    static ETL_CONST bool is_modulo = etl::is_unsigned<T>::value;
+    static ETL_CONST_OR_CONSTEXPR bool is_iec559 = false;
+    static ETL_CONST_OR_CONSTEXPR bool is_bounded = true;
+    static ETL_CONST_OR_CONSTEXPR bool is_modulo = etl::is_unsigned<T>::value;
 
-    static ETL_CONST bool traps = false;
-    static ETL_CONST bool tinyness_before = false;
-    static ETL_CONST float_round_style round_style = round_toward_zero;
+    static ETL_CONST_OR_CONSTEXPR bool traps = false;
+    static ETL_CONST_OR_CONSTEXPR bool tinyness_before = false;
+    static ETL_CONST_OR_CONSTEXPR float_round_style round_style = round_toward_zero;
   };
 
   //***************************************************************************
@@ -118,39 +118,48 @@ namespace etlstd
   class etl_floating_point_type
   {
   public:
-    static ETL_CONST bool is_specialized = true;
+    static ETL_CONST_OR_CONSTEXPR bool is_specialized = true;
 
-    static ETL_CONST bool is_signed = true;
-    static ETL_CONST bool is_integer = false;
-    static ETL_CONST bool is_exact = false;
+    static ETL_CONST_OR_CONSTEXPR bool is_signed = true;
+    static ETL_CONST_OR_CONSTEXPR bool is_integer = false;
+    static ETL_CONST_OR_CONSTEXPR bool is_exact = false;
 
-    static ETL_CONST int radix = 2;
+    static ETL_CONST_OR_CONSTEXPR int radix = 2;
 
-    static ETL_CONST bool has_infinity = false;
-    static ETL_CONST bool has_quiet_NaN = false;
-    static ETL_CONST bool has_signaling_NaN = false;
-    static ETL_CONST float_denorm_style has_denorm = denorm_present;
-    static ETL_CONST bool has_denorm_loss = true;
+    static ETL_CONST_OR_CONSTEXPR bool has_infinity = false;
+    static ETL_CONST_OR_CONSTEXPR bool has_quiet_NaN = false;
+    static ETL_CONST_OR_CONSTEXPR bool has_signaling_NaN = false;
+    static ETL_CONST_OR_CONSTEXPR float_denorm_style has_denorm = denorm_present;
+    static ETL_CONST_OR_CONSTEXPR bool has_denorm_loss = true;
 
-    static ETL_CONST bool is_iec559 = true;
-    static ETL_CONST bool is_bounded = true;
-    static ETL_CONST bool is_modulo = false;
+    static ETL_CONST_OR_CONSTEXPR bool is_iec559 = true;
+    static ETL_CONST_OR_CONSTEXPR bool is_bounded = true;
+    static ETL_CONST_OR_CONSTEXPR bool is_modulo = false;
 
     static ETL_CONSTEXPR T round_error() { return T(0.5); }
     static ETL_CONSTEXPR T infinity() { return 0; }
     static ETL_CONSTEXPR T quiet_NaN() { return 0; }
     static ETL_CONSTEXPR T signaling_NaN() { return 0; }
 
-    static ETL_CONST bool traps = false;
-    static ETL_CONST bool tinyness_before = true;
-    static ETL_CONST float_round_style round_style = round_to_nearest;
+    static ETL_CONST_OR_CONSTEXPR bool traps = false;
+    static ETL_CONST_OR_CONSTEXPR bool tinyness_before = true;
+    static ETL_CONST_OR_CONSTEXPR float_round_style round_style = round_to_nearest;
   };
 
   //***************************************************************************
   // Default
-  template<class T>
+  template <typename T>
   class numeric_limits;
 
+  template <typename T>
+  class numeric_limits<const T> : public numeric_limits<T> { };
+
+  template <typename T>
+  class numeric_limits<volatile T> : public numeric_limits<T> { };
+
+  template <typename T>
+  class numeric_limits<const volatile T> : public numeric_limits<T> { };
+
   //***************************************************************************
   // bool
   template<>
@@ -158,47 +167,47 @@ namespace etlstd
   {
   public:
 
-    static ETL_CONST bool is_specialized = true;
+    static ETL_CONST_OR_CONSTEXPR bool is_specialized = true;
 
     static ETL_CONSTEXPR bool min() { return false; }
     static ETL_CONSTEXPR bool max() { return true; }
     static ETL_CONSTEXPR bool lowest() { return false; }
 
-    static ETL_CONST int digits = 1;
-    static ETL_CONST int digits10 = 0;
-    static ETL_CONST int max_digits10 = 0;
+    static ETL_CONST_OR_CONSTEXPR int digits = 1;
+    static ETL_CONST_OR_CONSTEXPR int digits10 = 0;
+    static ETL_CONST_OR_CONSTEXPR int max_digits10 = 0;
 
-    static ETL_CONST bool is_signed = false;
-    static ETL_CONST bool is_integer = true;
-    static ETL_CONST bool is_exact = true;
+    static ETL_CONST_OR_CONSTEXPR bool is_signed = false;
+    static ETL_CONST_OR_CONSTEXPR bool is_integer = true;
+    static ETL_CONST_OR_CONSTEXPR bool is_exact = true;
 
-    static ETL_CONST int radix = 2;
-    static ETL_CONST bool epsilon() { return 0; }
-    static ETL_CONST bool round_error() { return 0; }
+    static ETL_CONST_OR_CONSTEXPR int radix = 2;
+    static ETL_CONST_OR_CONSTEXPR bool epsilon() { return false; }
+    static ETL_CONST_OR_CONSTEXPR bool round_error() { return false; }
 
-    static ETL_CONST int min_exponent = 0;
-    static ETL_CONST int min_exponent10 = 0;
-    static ETL_CONST int max_exponent = 0;
-    static ETL_CONST int max_exponent10 = 0;
+    static ETL_CONST_OR_CONSTEXPR int min_exponent = 0;
+    static ETL_CONST_OR_CONSTEXPR int min_exponent10 = 0;
+    static ETL_CONST_OR_CONSTEXPR int max_exponent = 0;
+    static ETL_CONST_OR_CONSTEXPR int max_exponent10 = 0;
 
-    static ETL_CONST bool has_infinity = false;
-    static ETL_CONST bool has_quiet_NaN = false;
-    static ETL_CONST bool has_signaling_NaN = false;
-    static ETL_CONST float_denorm_style has_denorm = denorm_absent;
-    static ETL_CONST bool has_denorm_loss = false;
+    static ETL_CONST_OR_CONSTEXPR bool has_infinity = false;
+    static ETL_CONST_OR_CONSTEXPR bool has_quiet_NaN = false;
+    static ETL_CONST_OR_CONSTEXPR bool has_signaling_NaN = false;
+    static ETL_CONST_OR_CONSTEXPR float_denorm_style has_denorm = denorm_absent;
+    static ETL_CONST_OR_CONSTEXPR bool has_denorm_loss = false;
 
-    static ETL_CONSTEXPR bool infinity() { return 0; }
-    static ETL_CONSTEXPR bool quiet_NaN() { return 0; }
-    static ETL_CONSTEXPR bool signaling_NaN() { return 0; }
-    static ETL_CONSTEXPR bool denorm_min() { return 0; }
+    static ETL_CONSTEXPR bool infinity() { return false; }
+    static ETL_CONSTEXPR bool quiet_NaN() { return false; }
+    static ETL_CONSTEXPR bool signaling_NaN() { return false; }
+    static ETL_CONSTEXPR bool denorm_min() { return false; }
 
-    static ETL_CONST bool is_iec559 = false;
-    static ETL_CONST bool is_bounded = true;
-    static ETL_CONST bool is_modulo = false;
+    static ETL_CONST_OR_CONSTEXPR bool is_iec559 = false;
+    static ETL_CONST_OR_CONSTEXPR bool is_bounded = true;
+    static ETL_CONST_OR_CONSTEXPR bool is_modulo = false;
 
-    static ETL_CONST bool traps = false;
-    static ETL_CONST bool tinyness_before = false;
-    static ETL_CONST float_round_style round_style = round_toward_zero;
+    static ETL_CONST_OR_CONSTEXPR bool traps = false;
+    static ETL_CONST_OR_CONSTEXPR bool tinyness_before = false;
+    static ETL_CONST_OR_CONSTEXPR float_round_style round_style = round_toward_zero;
   };
 
   //***************************************************************************
@@ -384,14 +393,14 @@ namespace etlstd
     static ETL_CONSTEXPR float epsilon() { return FLT_EPSILON; }
     static ETL_CONSTEXPR float denorm_min() { return FLT_MIN; }
 
-    static ETL_CONST int digits = FLT_MANT_DIG;
-    static ETL_CONST int digits10 = FLT_DIG;
-    static ETL_CONST int max_digits10 = ETL_LOG2(FLT_MANT_DIG) + 2;
+    static ETL_CONST_OR_CONSTEXPR int digits = FLT_MANT_DIG;
+    static ETL_CONST_OR_CONSTEXPR int digits10 = FLT_DIG;
+    static ETL_CONST_OR_CONSTEXPR int max_digits10 = ETL_LOG2(FLT_MANT_DIG) + 2;
 
-    static ETL_CONST int min_exponent = FLT_MIN_EXP;
-    static ETL_CONST int min_exponent10 = FLT_MIN_10_EXP;
-    static ETL_CONST int max_exponent = FLT_MAX_EXP;
-    static ETL_CONST int max_exponent10 = FLT_MAX_10_EXP;
+    static ETL_CONST_OR_CONSTEXPR int min_exponent = FLT_MIN_EXP;
+    static ETL_CONST_OR_CONSTEXPR int min_exponent10 = FLT_MIN_10_EXP;
+    static ETL_CONST_OR_CONSTEXPR int max_exponent = FLT_MAX_EXP;
+    static ETL_CONST_OR_CONSTEXPR int max_exponent10 = FLT_MAX_10_EXP;
   };
 
   //***************************************************************************
@@ -407,14 +416,14 @@ namespace etlstd
     static ETL_CONSTEXPR double epsilon() { return DBL_EPSILON; }
     static ETL_CONSTEXPR double denorm_min() { return DBL_MIN; }
 
-    static ETL_CONST int digits = DBL_MANT_DIG;
-    static ETL_CONST int digits10 = DBL_DIG;
-    static ETL_CONST int max_digits10 = ETL_LOG2(DBL_MANT_DIG) + 2;
+    static ETL_CONST_OR_CONSTEXPR int digits = DBL_MANT_DIG;
+    static ETL_CONST_OR_CONSTEXPR int digits10 = DBL_DIG;
+    static ETL_CONST_OR_CONSTEXPR int max_digits10 = ETL_LOG2(DBL_MANT_DIG) + 2;
 
-    static ETL_CONST int min_exponent = DBL_MIN_EXP;
-    static ETL_CONST int min_exponent10 = DBL_MIN_10_EXP;
-    static ETL_CONST int max_exponent = DBL_MAX_EXP;
-    static ETL_CONST int max_exponent10 = DBL_MAX_10_EXP;
+    static ETL_CONST_OR_CONSTEXPR int min_exponent = DBL_MIN_EXP;
+    static ETL_CONST_OR_CONSTEXPR int min_exponent10 = DBL_MIN_10_EXP;
+    static ETL_CONST_OR_CONSTEXPR int max_exponent = DBL_MAX_EXP;
+    static ETL_CONST_OR_CONSTEXPR int max_exponent10 = DBL_MAX_10_EXP;
   };
 
   //***************************************************************************
@@ -430,14 +439,14 @@ namespace etlstd
     static ETL_CONSTEXPR long double epsilon() { return LDBL_EPSILON; }
     static ETL_CONSTEXPR long double denorm_min() { return LDBL_MIN; }
 
-    static ETL_CONST int digits = LDBL_MANT_DIG;
-    static ETL_CONST int digits10 = LDBL_DIG;
-    static ETL_CONST int max_digits10 = ETL_LOG2(LDBL_MANT_DIG) + 2;
+    static ETL_CONST_OR_CONSTEXPR int digits = LDBL_MANT_DIG;
+    static ETL_CONST_OR_CONSTEXPR int digits10 = LDBL_DIG;
+    static ETL_CONST_OR_CONSTEXPR int max_digits10 = ETL_LOG2(LDBL_MANT_DIG) + 2;
 
-    static ETL_CONST int min_exponent = LDBL_MIN_EXP;
-    static ETL_CONST int min_exponent10 = LDBL_MIN_10_EXP;
-    static ETL_CONST int max_exponent = LDBL_MAX_EXP;
-    static ETL_CONST int max_exponent10 = LDBL_MAX_10_EXP;
+    static ETL_CONST_OR_CONSTEXPR int min_exponent = LDBL_MIN_EXP;
+    static ETL_CONST_OR_CONSTEXPR int min_exponent10 = LDBL_MIN_10_EXP;
+    static ETL_CONST_OR_CONSTEXPR int max_exponent = LDBL_MAX_EXP;
+    static ETL_CONST_OR_CONSTEXPR int max_exponent10 = LDBL_MAX_10_EXP;
   };
 }
 
diff --git a/include/etl/type_traits.h b/include/etl/type_traits.h
index d01e2084..ebd296b8 100644
--- a/include/etl/type_traits.h
+++ b/include/etl/type_traits.h
@@ -482,15 +482,16 @@ namespace etl
   /// Alignment templates.
   /// These require compiler specific intrinsics.
   ///\ingroup type_traits
-#ifdef 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))> {};
-
+#if ETL_CPP11_SUPPORTED
+  template <typename T> struct alignment_of : integral_constant<size_t, size_t(alignof(T))> {};
 #else
-  template <typename T> struct alignment_of : integral_constant<size_t, size_t(__alignof__(T))> {};
-
+  #ifdef 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))> {};
+  #else
+    template <typename T> struct alignment_of : integral_constant<size_t, size_t(__alignof__(T))> {};
+  #endif
 #endif
 
   /// Specialisation of 'alignment_of' for 'void'.
@@ -523,14 +524,14 @@ namespace etl
   ///\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 T13 = void, typename T14 = void, typename T15 = void, typename T16 = 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, 
             typename T17 = void>
   struct is_one_of
   {
-    static const bool value =
+    static const bool value = 
         etl::is_same<T, T1>::value ||
         etl::is_same<T, T2>::value ||
         etl::is_same<T, T3>::value ||
diff --git a/include/etl/type_traits_generator.h b/include/etl/type_traits_generator.h
index c7449af6..f090f469 100644
--- a/include/etl/type_traits_generator.h
+++ b/include/etl/type_traits_generator.h
@@ -494,15 +494,16 @@ namespace etl
   /// Alignment templates.
   /// These require compiler specific intrinsics.
   ///\ingroup type_traits
-#ifdef 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))> {};
-
+#if ETL_CPP11_SUPPORTED
+  template <typename T> struct alignment_of : integral_constant<size_t, size_t(alignof(T))> {};
 #else
-  template <typename T> struct alignment_of : integral_constant<size_t, size_t(__alignof__(T))> {};
-
+  #ifdef 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))> {};
+  #else
+    template <typename T> struct alignment_of : integral_constant<size_t, size_t(__alignof__(T))> {};
+  #endif
 #endif
 
   /// Specialisation of 'alignment_of' for 'void'.
diff --git a/include/etl/version.h b/include/etl/version.h
index 017c3b33..69cbc002 100644
--- a/include/etl/version.h
+++ b/include/etl/version.h
@@ -38,8 +38,8 @@ SOFTWARE.
 ///\ingroup utilities
 
 #define ETL_VERSION_MAJOR 15
-#define ETL_VERSION_MINOR  4
-#define ETL_VERSION_PATCH  2
+#define ETL_VERSION_MINOR  5
+#define ETL_VERSION_PATCH  0
 
 #define ETL_VERSION       ETL_STRINGIFY(ETL_VERSION_MAJOR) "." ETL_STRINGIFY(ETL_VERSION_MINOR) "." ETL_STRINGIFY(ETL_VERSION_PATCH)
 #define ETL_VERSION_W     ETL_STRINGIFY(ETL_VERSION_MAJOR) L"." ETL_STRINGIFY(ETL_VERSION_MINOR) L"." ETL_STRINGIFY(ETL_VERSION_PATCH)
diff --git a/library.json b/library.json
index 4602fc58..9bcfadfb 100644
--- a/library.json
+++ b/library.json
@@ -1,6 +1,6 @@
 {
   "name": "Embedded Template Library",
-  "version": "15.4.2",
+  "version": "15.5.0",
   "authors": {
     "name": "John Wellbelove",
     "email": "<john.wellbelove@etlcpp.com>"
diff --git a/library.properties b/library.properties
index e73a128f..84d0db75 100644
--- a/library.properties
+++ b/library.properties
@@ -1,5 +1,5 @@
 name=Embedded Template Library
-version=15.4.2
+version=15.5.0
 author= John Wellbelove <john.wellbelove@etlcpp.com>
 maintainer=John Wellbelove <john.wellbelove@etlcpp.com>
 license=MIT
diff --git a/support/Release notes.txt b/support/Release notes.txt
index dedbee68..742a4cdd 100644
--- a/support/Release notes.txt	
+++ b/support/Release notes.txt	
@@ -1,3 +1,10 @@
+===============================================================================
+15.5.0
+Added the ability to self determine the compiler type, version and language support
+by defining ETL_AUTO_DETERMINE_COMPILER_INFO or including the 'auto.h' profile.
+Added support for C++11's 'alignas' and 'alignof'
+Changed 'memcpy' to 'memmove' in alternate STL algorithms.
+
 ===============================================================================
 15.4.2
 Fix visitor overridden test virtual visit function parameters
diff --git a/test/codeblocks/ETL.cbp b/test/codeblocks/ETL.cbp
index 35dc8529..7221311a 100644
--- a/test/codeblocks/ETL.cbp
+++ b/test/codeblocks/ETL.cbp
@@ -28,18 +28,35 @@
 				</ExtraCommands>
 			</Target>
 			<Target title="Windows No STL">
+				<Option output="bin/Debug No STL/ETL" prefix_auto="1" extension_auto="1" />
+				<Option object_output="obj/Debug/" />
+				<Option type="1" />
+				<Option compiler="gcc" />
+				<Compiler>
+					<Add option="-std=c++1z" />
+					<Add option="-m32" />
+					<Add option="-g" />
+					<Add option="-D_DEBUG" />
+					<Add option="-DETL_NO_STL" />
+					<Add directory="../../src" />
+				</Compiler>
+				<Linker>
+					<Add option="-m32" />
+				</Linker>
+				<ExtraCommands>
+					<Add after="${TARGET_OUTPUT_DIR}${TARGET_OUTPUT_BASENAME}" />
+				</ExtraCommands>
+			</Target>
+			<Target title="Linux">
 				<Option output="bin/Debug/ETL" prefix_auto="1" extension_auto="1" />
 				<Option object_output="obj/Debug/" />
 				<Option type="1" />
 				<Option compiler="gcc" />
 				<Compiler>
-					<Add option="-std=c++14" />
 					<Add option="-std=c++17" />
-					<Add option="-std=c++11" />
 					<Add option="-m32" />
 					<Add option="-g" />
 					<Add option="-D_DEBUG" />
-					<Add option="-DETL_NO_STL" />
 					<Add directory="../../src" />
 				</Compiler>
 				<Linker>
@@ -55,7 +72,6 @@
 				<Option type="1" />
 				<Option compiler="gcc" />
 				<Compiler>
-					<Add option="-std=c++11" />
 					<Add option="-m64" />
 					<Add option="-g" />
 					<Add option="-D_DEBUG" />
@@ -68,32 +84,13 @@
 					<Add after="${TARGET_OUTPUT_DIR}${TARGET_OUTPUT_BASENAME}" />
 				</ExtraCommands>
 			</Target>
-			<Target title="Linux">
-				<Option output="bin/Debug/ETL" prefix_auto="1" extension_auto="1" />
-				<Option object_output="obj/Debug/" />
-				<Option type="1" />
-				<Option compiler="gcc" />
-				<Compiler>
-					<Add option="-std=c++14" />
-					<Add option="-std=c++17" />
-					<Add option="-std=c++11" />
-					<Add option="-g" />
-					<Add option="-D_DEBUG" />
-				</Compiler>
-				<ExtraCommands>
-					<Add after="${TARGET_OUTPUT_DIR}${TARGET_OUTPUT_BASENAME}" />
-					<Mode after="always" />
-				</ExtraCommands>
-			</Target>
 			<Target title="Linux No STL">
 				<Option output="bin/Debug/ETL" prefix_auto="1" extension_auto="1" />
 				<Option object_output="obj/Debug/" />
 				<Option type="1" />
 				<Option compiler="gcc" />
 				<Compiler>
-					<Add option="-std=c++14" />
 					<Add option="-std=c++17" />
-					<Add option="-std=c++11" />
 					<Add option="-g" />
 					<Add option="-D_DEBUG" />
 					<Add option="-DETL_NO_STL" />
@@ -105,14 +102,12 @@
 			</Target>
 		</Build>
 		<Compiler>
-			<Add option="-Wunused-parameter" />
-			<Add option="-Wstrict-aliasing" />
 			<Add option="-Wshadow" />
 			<Add option="-Wundef" />
 			<Add option="-Wall" />
-			<Add option="-std=c++14" />
+			<Add option="-Wunused-parameter" />
+			<Add option="-Wstrict-aliasing" />
 			<Add option="-std=c++17" />
-			<Add option="-std=c++11" />
 			<Add option="-fexceptions" />
 			<Add directory="../../../unittest-cpp/UnitTest++/" />
 			<Add directory="../../src" />
@@ -300,10 +295,21 @@
 		<Unit filename="../../include/etl/pool.h" />
 		<Unit filename="../../include/etl/power.h" />
 		<Unit filename="../../include/etl/priority_queue.h" />
+		<Unit filename="../../include/etl/private/choose_namespace.h" />
+		<Unit filename="../../include/etl/private/choose_pair_types.h" />
+		<Unit filename="../../include/etl/private/choose_tag_types.h" />
+		<Unit filename="../../include/etl/private/crc16_poly_0x1021_.h" />
+		<Unit filename="../../include/etl/private/crc16_poly_0x8005.h" />
+		<Unit filename="../../include/etl/private/crc32_poly_0x04c11db7.h" />
+		<Unit filename="../../include/etl/private/crc32_poly_0x1edc6f41.h" />
+		<Unit filename="../../include/etl/private/crc64_poly_0x42f0e1eba9ea3693.h" />
+		<Unit filename="../../include/etl/private/crc8_poly_0x07.h" />
 		<Unit filename="../../include/etl/private/delegate_base.h" />
 		<Unit filename="../../include/etl/private/delegate_base_cpp03.h" />
 		<Unit filename="../../include/etl/private/delegate_cpp03.h" />
 		<Unit filename="../../include/etl/private/ivectorpointer.h" />
+		<Unit filename="../../include/etl/private/minmax_pop.h" />
+		<Unit filename="../../include/etl/private/minmax_push.h" />
 		<Unit filename="../../include/etl/private/pvoidvector.h" />
 		<Unit filename="../../include/etl/private/to_string_helper.h" />
 		<Unit filename="../../include/etl/private/vector_base.h" />
@@ -321,6 +327,8 @@
 		<Unit filename="../../include/etl/profiles/cpp14_no_stl.h" />
 		<Unit filename="../../include/etl/profiles/cpp17.h" />
 		<Unit filename="../../include/etl/profiles/cpp17_no_stl.h" />
+		<Unit filename="../../include/etl/profiles/determine_compiler.h" />
+		<Unit filename="../../include/etl/profiles/determine_compiler_version.h" />
 		<Unit filename="../../include/etl/profiles/etl_profile.h" />
 		<Unit filename="../../include/etl/profiles/gcc_generic.h" />
 		<Unit filename="../../include/etl/profiles/gcc_linux_x86.h" />
diff --git a/test/etl_profile.h b/test/etl_profile.h
index 02690eab..66a7cb46 100644
--- a/test/etl_profile.h
+++ b/test/etl_profile.h
@@ -95,10 +95,14 @@ SOFTWARE.
   #define ETL_TIMER_SEMAPHORE_TYPE uint32_t
 #endif
 
-#ifdef _MSC_VER
-  #include "etl/profiles/msvc_x86.h"
-#else
-  #include "etl/profiles/gcc_windows_x86.h"
+#if defined(WIN32) || defined(WIN64) || defined(_WIN32) || defined(_WIN64)
+  #define ETL_TARGET_OS_WINDOWS
 #endif
 
+#if defined(linux)
+  #define ETL_TARGET_OS_LINUX
+#endif
+
+#include "etl/profiles/auto.h"
+
 #endif
diff --git a/test/test_binary.cpp b/test/test_binary.cpp
index 6923a0f7..6c11fcfe 100644
--- a/test/test_binary.cpp
+++ b/test/test_binary.cpp
@@ -30,6 +30,7 @@ SOFTWARE.
 
 #include <cstdint>
 #include <type_traits>
+#include <limits>
 
 #include "etl/binary.h"
 #include "etl/bitset.h"
diff --git a/test/vs2017/etl.vcxproj b/test/vs2017/etl.vcxproj
index 483c5cad..3e2240c0 100644
--- a/test/vs2017/etl.vcxproj
+++ b/test/vs2017/etl.vcxproj
@@ -342,7 +342,7 @@
       </PrecompiledHeader>
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;_LIB;_CRT_SECURE_NO_WARNINGS;_SCL_SECURE_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;_LIB;_CRT_SECURE_NO_WARNINGS;_SCL_SECURE_NO_WARNINGS;__clang__;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <AdditionalIncludeDirectories>../../../unittest-cpp/UnitTest++/;../../include;../../include/etl/c;../../test</AdditionalIncludeDirectories>
       <UndefinePreprocessorDefinitions>
       </UndefinePreprocessorDefinitions>
@@ -350,7 +350,7 @@
       <LanguageStandard>stdcpp17</LanguageStandard>
       <SupportJustMyCode>false</SupportJustMyCode>
       <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
-      <AdditionalOptions>-Wno-self-assign %(AdditionalOptions)</AdditionalOptions>
+      <AdditionalOptions>-Wno-self-assign /Zc:__cplusplus %(AdditionalOptions)</AdditionalOptions>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
@@ -366,7 +366,7 @@
       </PrecompiledHeader>
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;_LIB;_CRT_SECURE_NO_WARNINGS;_SCL_SECURE_NO_WARNINGS;ETL_NO_STL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;_LIB;_CRT_SECURE_NO_WARNINGS;_SCL_SECURE_NO_WARNINGS;ETL_NO_STL;__clang__;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <AdditionalIncludeDirectories>../../../unittest-cpp/UnitTest++/;../../include;../../include/etl/c;../../test</AdditionalIncludeDirectories>
       <UndefinePreprocessorDefinitions>
       </UndefinePreprocessorDefinitions>
@@ -374,7 +374,7 @@
       <LanguageStandard>stdcpp17</LanguageStandard>
       <SupportJustMyCode>false</SupportJustMyCode>
       <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
-      <AdditionalOptions>-Wno-self-assign %(AdditionalOptions)</AdditionalOptions>
+      <AdditionalOptions>-Wno-self-assign /Zc:__cplusplus %(AdditionalOptions)</AdditionalOptions>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
@@ -747,9 +747,13 @@
     <ClInclude Include="..\..\include\etl\private\to_string_helper.h" />
     <ClInclude Include="..\..\include\etl\profiles\armv7.h" />
     <ClInclude Include="..\..\include\etl\profiles\armv7_no_stl.h" />
+    <ClInclude Include="..\..\include\etl\profiles\auto.h" />
     <ClInclude Include="..\..\include\etl\profiles\clang_generic.h" />
     <ClInclude Include="..\..\include\etl\profiles\cpp17.h" />
     <ClInclude Include="..\..\include\etl\profiles\cpp17_no_stl.h" />
+    <ClInclude Include="..\..\include\etl\profiles\determine_compiler.h" />
+    <ClInclude Include="..\..\include\etl\profiles\determine_compiler_language_support.h" />
+    <ClInclude Include="..\..\include\etl\profiles\determine_compiler_version.h" />
     <ClInclude Include="..\..\include\etl\queue_spsc_locked.h" />
     <ClInclude Include="..\..\include\etl\scaled_rounding.h" />
     <ClInclude Include="..\..\include\etl\state_chart.h" />
diff --git a/test/vs2017/etl.vcxproj.filters b/test/vs2017/etl.vcxproj.filters
index 16c1c10c..a467fa68 100644
--- a/test/vs2017/etl.vcxproj.filters
+++ b/test/vs2017/etl.vcxproj.filters
@@ -846,6 +846,18 @@
     <ClInclude Include="..\..\include\etl\crc32_posix.h">
       <Filter>ETL\Maths</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\include\etl\profiles\determine_compiler_version.h">
+      <Filter>ETL\Profiles</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\include\etl\profiles\determine_compiler.h">
+      <Filter>ETL\Profiles</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\include\etl\profiles\auto.h">
+      <Filter>ETL\Profiles</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\include\etl\profiles\determine_compiler_language_support.h">
+      <Filter>ETL\Profiles</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="..\main.cpp">