/************************************************************************
* file name         : easy_compiler_support.h
* ----------------- :
* creation time     : 2016/09/22
* authors           : Victor Zarubkin, Sergey Yagovtsev
* emails            : v.s.zarubkin@gmail.com, yse.sey@gmail.com
* ----------------- :
* description       : This file contains auxiliary profiler macros for different compiler support.
* ----------------- :
* license           : Lightweight profiler library for c++
*                   : Copyright(C) 2016  Sergey Yagovtsev, Victor Zarubkin
*                   :
*                   : This program is free software : you can redistribute it and / or modify
*                   : it under the terms of the GNU General Public License as published by
*                   : the Free Software Foundation, either version 3 of the License, or
*                   : (at your option) any later version.
*                   :
*                   : This program is distributed in the hope that it will be useful,
*                   : but WITHOUT ANY WARRANTY; without even the implied warranty of
*                   : MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the
*                   : GNU General Public License for more details.
*                   :
*                   : You should have received a copy of the GNU General Public License
*                   : along with this program.If not, see <http://www.gnu.org/licenses/>.
************************************************************************/

#ifndef EASY_PROFILER__COMPILER_SUPPORT__H_______
#define EASY_PROFILER__COMPILER_SUPPORT__H_______

#include <cstddef>

//#define EASY_CODE_WRAP(Code) Code

#ifdef _WIN32
# define __func__ __FUNCTION__
# ifdef _BUILD_PROFILER
#  define PROFILER_API __declspec(dllexport)
# else
#  define PROFILER_API __declspec(dllimport)
# endif
#endif



#if defined (_MSC_VER)
//////////////////////////////////////////////////////////////////////////
// Visual Studio

# if _MSC_VER <= 1800
// There is no support for C++11 thread_local keyword prior to Visual Studio 2015. Use __declspec(thread) instead.
// There is also no support for C++11 magic statics feature :( So it becomes slightly harder to initialize static vars - additional "if" for each profiler block.
#  define EASY_THREAD_LOCAL __declspec(thread)
#  define EASY_LOCAL_STATIC_PTR(VarType, VarName, VarInitializer)\
                                            __declspec(thread) static VarType VarName = 0;\
                                            if (!VarName)\
                                                VarName = VarInitializer
# endif

#elif defined (__clang__)
//////////////////////////////////////////////////////////////////////////
// Clang Compiler

# if (__clang_major__ == 3 && __clang_minor__ < 3) || (__clang_major__ < 3)
// There is no support for C++11 thread_local keyword prior to clang 3.3. Use __thread instead.
#  define EASY_THREAD_LOCAL __thread
# endif

# if (__clang_major__ == 2 && __clang_minor__ < 9) || (__clang_major__ < 2)
// There is no support for C++11 magic statics feature prior to clang 2.9. It becomes slightly harder to initialize static vars - additional "if" for each profiler block.
#  define EASY_LOCAL_STATIC_PTR(VarType, VarName, VarInitializer)\
                                            EASY_THREAD_LOCAL static VarType VarName = 0;\
                                            if (!VarName)\
                                                VarName = VarInitializer

// There is no support for C++11 final keyword prior to clang 2.9
#  define EASY_FINAL 
# endif

#elif defined(__GNUC__)
//////////////////////////////////////////////////////////////////////////
// GNU Compiler

# if (__GNUC__ == 4 && __GNUC_MINOR__ < 8) || (__GNUC__ < 4)
// There is no support for C++11 thread_local keyword prior to gcc 4.8. Use __thread instead.
#  define EASY_THREAD_LOCAL __thread
# endif

# if (__GNUC__ == 4 && __GNUC_MINOR__ < 3) || (__GNUC__ < 4)
// There is no support for C++11 magic statics feature prior to gcc 4.3. It becomes slightly harder to initialize static vars - additional "if" for each profiler block.
#  define EASY_LOCAL_STATIC_PTR(VarType, VarName, VarInitializer)\
                                            EASY_THREAD_LOCAL static VarType VarName = 0;\
                                            if (!VarName)\
                                                VarName = VarInitializer
# endif

# if (__GNUC__ == 4 && __GNUC_MINOR__ < 7) || (__GNUC__ < 4)
// There is no support for C++11 final keyword prior to gcc 4.7
#  define EASY_FINAL 
# endif

#endif
// END // TODO: Add other compilers support
//////////////////////////////////////////////////////////////////////////



//////////////////////////////////////////////////////////////////////////
// Default values

#ifndef EASY_THREAD_LOCAL
# define EASY_THREAD_LOCAL thread_local
# define EASY_THREAD_LOCAL_CPP11
#endif

#ifndef EASY_LOCAL_STATIC_PTR
# define EASY_LOCAL_STATIC_PTR(VarType, VarName, VarInitializer) static VarType VarName = VarInitializer
# define EASY_MAGIC_STATIC_CPP11
#endif

#ifndef EASY_FINAL
# define EASY_FINAL final
#endif

#ifndef PROFILER_API
# define PROFILER_API
#endif

//////////////////////////////////////////////////////////////////////////

#endif // EASY_PROFILER__COMPILER_SUPPORT__H_______