initial commit

CMakeLists.txt

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+cmake_minimum_required(VERSION 3.5)
+project(Candland)
+add_executable(candyland candyland.cpp)
+set_target_properties(candyland PROPERTIES CXX_STANDARD 20)
+set_target_properties(candyland PROPERTIES CXX_STANDARD_REQUIRED TRUE)
+
+if(CMAKE_CXX_COMPILER_ID MATCHES "Clang" OR CMAKE_CXX_COMPILER_ID MATCHES "AppleClang")
+    target_compile_options(candyland PRIVATE
+        -Wall
+        -Wextra
+        -Wpedantic
+        -Wshadow
+        -Wnon-virtual-dtor
+        -Wold-style-cast
+        -Wcast-align
+        -Wunused
+        -Woverloaded-virtual
+        # -Wconversion
+        -Wnull-dereference
+        -Wdouble-promotion
+        -Wformat=2
+    )
+endif()