Add the test target.

.clang-format

 BasedOnStyle: LLVM
 IndentWidth: 4
+AccessModifierOffset: -4
 NamespaceIndentation: All
+AlwaysBreakTemplateDeclarations: true
+AllowShortFunctionsOnASingleLine: Empty
+BreakConstructorInitializersBeforeComma: true
+ColumnLimit: 120
+BinPackParameters: false
+BinPackArguments: false

CMakeLists.txt

@@ -2,7 +2,7 @@ cmake_minimum_required(VERSION 3.0.0)
 
 project(wasm-watermarker VERSION 0.1.0 LANGUAGES CXX)
 
-set(CMAKE_CXX_FLAGS "-std=c++17 -Wall -Wextra -Werror -pedantic")
+set(CMAKE_CXX_FLAGS "-std=c++2a -Wall -Wextra -Werror -pedantic -fconcepts")
 set(CMAKE_CXX_FLAGS_DEBUG "-g3 -O0 -pg")
 set(CMAKE_CXX_FLAGS_RELEASE "-O2 -DNDEBUG -march=native")
 set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "-g3 -Og -pg")
@@ -15,4 +15,9 @@ endif (NOT CMAKE_BUILD_TYPE)
 include(ExternalProject)
 include(cmake/binaryen.cmake)
 
+include_directories(
+    src
+)
+
 add_subdirectory(src)
+add_subdirectory(test)

test/CMakeLists.txt

+add_executable(kyut_test
+    test.cpp
+)

test/test.cpp

+int main() {}