Enable all gcc and clang warnings for testing the CI

CMakeLists.txt

@@ -34,6 +34,34 @@ if (CMAKE_VERSION VERSION_LESS "3.21")
     string(COMPARE EQUAL ${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_SOURCE_DIR} PROJECT_IS_TOP_LEVEL)
 endif()
 
+# Set warning flags for gcc and clang
+if (CMAKE_CXX_COMPILER_ID MATCHES "GNU|Clang")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}
+                            -Wall
+                            -Wextra
+                            -Wpedantic
+                            -Wconversion
+                            -Wsign-conversion
+                            -Wshadow
+                            -Wnull-dereference
+                            -Wdouble-promotion
+                            -Wformat=2
+                            -Wimplicit-fallthrough
+                            -Wundef
+                            -Wcast-align
+                            -Woverloaded-virtual
+                            -Wnon-virtual-dtor
+                            -Wstrict-overflow=5
+                            -Wuseless-cast
+                            -Wduplicated-cond
+                            -Wduplicated-branches
+                            -Wlogical-op
+                            -Wredundant-decls
+                            -Wstrict-null-sentinel
+                            -Wold-style-cast")
+    message(STATUS "CMAKE_CXX_FLAGS: " ${CMAKE_CXX_FLAGS})
+endif()
+
 option(VMA_ENABLE_INSTALL "Install VulkanMemoryAllocator" ${PROJECT_IS_TOP_LEVEL})
 if (VMA_ENABLE_INSTALL)
     include(GNUInstallDirs)