diff --git a/.clang_complete b/.clang_complete
deleted file mode 100644
index 93d2b49..0000000
--- a/.clang_complete
+++ /dev/null
@@ -1,4 +0,0 @@
--Iheaders
-
--std=c++17
--stdlib=libc++
diff --git a/LICENSE.md b/LICENSE.md
index 8435d4c..d096137 100644
--- a/LICENSE.md
+++ b/LICENSE.md
@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (C) 2019, by Matvey Cherevko (blackmatov@gmail.com)
+Copyright (C) 2019-2020, by Matvey Cherevko (blackmatov@gmail.com)
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/headers/enum.hpp/enum.hpp b/headers/enum.hpp/enum.hpp
index 96ff486..d9cd08e 100644
--- a/headers/enum.hpp/enum.hpp
+++ b/headers/enum.hpp/enum.hpp
@@ -1,7 +1,7 @@
 /*******************************************************************************
  * This file is part of the "https://github.com/blackmatov/enum.hpp"
  * For conditions of distribution and use, see copyright notice in LICENSE.md
- * Copyright (C) 2019, by Matvey Cherevko (blackmatov@gmail.com)
+ * Copyright (C) 2019-2020, by Matvey Cherevko (blackmatov@gmail.com)
  ******************************************************************************/
 
 #pragma once
diff --git a/scripts/build_clear.bat b/scripts/build_clear.bat
new file mode 100644
index 0000000..44375fb
--- /dev/null
+++ b/scripts/build_clear.bat
@@ -0,0 +1,9 @@
+@echo off
+set BUILD_DIR=%~dp0%\..\build
+rmdir /s /q %BUILD_DIR% || goto :error
+
+goto :EOF
+
+:error
+echo Failed with error #%errorlevel%.
+exit /b %errorlevel%
diff --git a/scripts/build_clear.sh b/scripts/build_clear.sh
new file mode 100755
index 0000000..ef8a2e3
--- /dev/null
+++ b/scripts/build_clear.sh
@@ -0,0 +1,4 @@
+#!/bin/bash
+set -e
+BUILD_DIR=`dirname "$BASH_SOURCE"`/../build
+rm -rf $BUILD_DIR
diff --git a/scripts/build_debug.sh b/scripts/build_debug.sh
index 97018eb..a069095 100755
--- a/scripts/build_debug.sh
+++ b/scripts/build_debug.sh
@@ -2,8 +2,8 @@
 set -e
 BUILD_DIR=`dirname "$BASH_SOURCE"`/../build
 mkdir -p $BUILD_DIR/Debug
-cd $BUILD_DIR/Debug
+pushd $BUILD_DIR/Debug
 cmake -DCMAKE_BUILD_TYPE=Debug ../..
 cmake --build .
 ctest --verbose
-cd ../..
+popd
diff --git a/scripts/build_debug_x64.bat b/scripts/build_debug_x64.bat
index 675bd2a..f80c2f3 100644
--- a/scripts/build_debug_x64.bat
+++ b/scripts/build_debug_x64.bat
@@ -1,11 +1,11 @@
 @echo off
 set BUILD_DIR=%~dp0%\..\build
 mkdir %BUILD_DIR%\Debug\x64 || goto :error
-cd %BUILD_DIR%\Debug\x64 || goto :error
+pushd %BUILD_DIR%\Debug\x64 || goto :error
 cmake ..\..\.. -A x64 || goto :error
 cmake --build . --config Debug || goto :error
 ctest --verbose || goto :error
-cd ..\..\.. || goto :error
+popd || goto :error
 
 goto :EOF
 
diff --git a/scripts/build_debug_x86.bat b/scripts/build_debug_x86.bat
index b6dcd6d..ee05129 100644
--- a/scripts/build_debug_x86.bat
+++ b/scripts/build_debug_x86.bat
@@ -1,11 +1,11 @@
 @echo off
 set BUILD_DIR=%~dp0%\..\build
 mkdir %BUILD_DIR%\Debug\x86 || goto :error
-cd %BUILD_DIR%\Debug\x86 || goto :error
+pushd %BUILD_DIR%\Debug\x86 || goto :error
 cmake ..\..\.. -A Win32 || goto :error
 cmake --build . --config Debug || goto :error
 ctest --verbose || goto :error
-cd ..\..\.. || goto :error
+popd || goto :error
 
 goto :EOF
 
diff --git a/scripts/build_release.sh b/scripts/build_release.sh
index 3a2c5c1..1377504 100755
--- a/scripts/build_release.sh
+++ b/scripts/build_release.sh
@@ -2,8 +2,8 @@
 set -e
 BUILD_DIR=`dirname "$BASH_SOURCE"`/../build
 mkdir -p $BUILD_DIR/Release
-cd $BUILD_DIR/Release
+pushd $BUILD_DIR/Release
 cmake -DCMAKE_BUILD_TYPE=Release ../..
 cmake --build .
 ctest --verbose
-cd ../..
+popd
diff --git a/scripts/build_release_x64.bat b/scripts/build_release_x64.bat
index 064e867..65e251e 100644
--- a/scripts/build_release_x64.bat
+++ b/scripts/build_release_x64.bat
@@ -1,11 +1,11 @@
 @echo off
 set BUILD_DIR=%~dp0%\..\build
 mkdir %BUILD_DIR%\Release\x64 || goto :error
-cd %BUILD_DIR%\Release\x64 || goto :error
+pushd %BUILD_DIR%\Release\x64 || goto :error
 cmake ..\..\.. -A x64 || goto :error
 cmake --build . --config Release || goto :error
 ctest --verbose || goto :error
-cd ..\..\.. || goto :error
+popd || goto :error
 
 goto :EOF
 
diff --git a/scripts/build_release_x86.bat b/scripts/build_release_x86.bat
index 09aa042..1be857b 100644
--- a/scripts/build_release_x86.bat
+++ b/scripts/build_release_x86.bat
@@ -1,11 +1,11 @@
 @echo off
 set BUILD_DIR=%~dp0%\..\build
 mkdir %BUILD_DIR%\Release\x86 || goto :error
-cd %BUILD_DIR%\Release\x86 || goto :error
+pushd %BUILD_DIR%\Release\x86 || goto :error
 cmake ..\..\.. -A Win32 || goto :error
 cmake --build . --config Release || goto :error
 ctest --verbose || goto :error
-cd ..\..\.. || goto :error
+popd || goto :error
 
 goto :EOF
 
diff --git a/scripts/gen_msvc2017_project.bat b/scripts/gen_msvc2017_project.bat
deleted file mode 100644
index 85015d6..0000000
--- a/scripts/gen_msvc2017_project.bat
+++ /dev/null
@@ -1,12 +0,0 @@
-@echo off
-set BUILD_DIR=%~dp0%\..\build
-mkdir %BUILD_DIR%\msvc2017 || goto :error
-cd %BUILD_DIR%\msvc2017 || goto :error
-cmake -G "Visual Studio 15 2017" ..\.. || goto :error
-start enum.hpp.sln || goto :error
-
-goto :EOF
-
-:error
-echo Failed with error #%errorlevel%.
-exit /b %errorlevel%
diff --git a/scripts/gen_msvc2019_project.bat b/scripts/gen_msvc2019_project.bat
deleted file mode 100644
index 00ab28e..0000000
--- a/scripts/gen_msvc2019_project.bat
+++ /dev/null
@@ -1,12 +0,0 @@
-@echo off
-set BUILD_DIR=%~dp0%\..\build
-mkdir %BUILD_DIR%\msvc2019 || goto :error
-cd %BUILD_DIR%\msvc2019 || goto :error
-cmake -G "Visual Studio 16 2019" ..\.. || goto :error
-start enum.hpp.sln || goto :error
-
-goto :EOF
-
-:error
-echo Failed with error #%errorlevel%.
-exit /b %errorlevel%
diff --git a/scripts/gen_xcode_project.sh b/scripts/gen_xcode_project.sh
deleted file mode 100755
index 614287d..0000000
--- a/scripts/gen_xcode_project.sh
+++ /dev/null
@@ -1,7 +0,0 @@
-#!/bin/bash
-set -e
-BUILD_DIR=`dirname "$BASH_SOURCE"`/../build
-mkdir -p $BUILD_DIR/xcode
-cd $BUILD_DIR/xcode
-cmake -G Xcode ../..
-open enum.hpp.xcodeproj
diff --git a/untests/catch_main.cpp b/untests/catch_main.cpp
index 4d76141..8538b37 100644
--- a/untests/catch_main.cpp
+++ b/untests/catch_main.cpp
@@ -1,7 +1,7 @@
 /*******************************************************************************
  * This file is part of the "https://github.com/blackmatov/enum.hpp"
  * For conditions of distribution and use, see copyright notice in LICENSE.md
- * Copyright (C) 2019 Matvey Cherevko
+ * Copyright (C) 2019-2020, by Matvey Cherevko (blackmatov@gmail.com)
  ******************************************************************************/
 
 #define CATCH_CONFIG_MAIN
diff --git a/untests/enum_examples.cpp b/untests/enum_examples.cpp
index e49598d..602d5e0 100644
--- a/untests/enum_examples.cpp
+++ b/untests/enum_examples.cpp
@@ -1,7 +1,7 @@
 /*******************************************************************************
  * This file is part of the "https://github.com/blackmatov/enum.hpp"
  * For conditions of distribution and use, see copyright notice in LICENSE.md
- * Copyright (C) 2019, by Matvey Cherevko (blackmatov@gmail.com)
+ * Copyright (C) 2019-2020, by Matvey Cherevko (blackmatov@gmail.com)
  ******************************************************************************/
 
 #define CATCH_CONFIG_FAST_COMPILE
diff --git a/untests/enum_tests.cpp b/untests/enum_tests.cpp
index bd67a75..e739a97 100644
--- a/untests/enum_tests.cpp
+++ b/untests/enum_tests.cpp
@@ -1,7 +1,7 @@
 /*******************************************************************************
  * This file is part of the "https://github.com/blackmatov/enum.hpp"
  * For conditions of distribution and use, see copyright notice in LICENSE.md
- * Copyright (C) 2019, by Matvey Cherevko (blackmatov@gmail.com)
+ * Copyright (C) 2019-2020, by Matvey Cherevko (blackmatov@gmail.com)
  ******************************************************************************/
 
 #define CATCH_CONFIG_FAST_COMPILE