Properly implement NotificationModule_SetDefaultValue typechecks for C and C++

tests/parameter_checker/src_cpp/main.cpp

@@ -0,0 +1,68 @@
+#include <coreinit/thread.h>
+#include <notifications/notifications.h>
+
+// Dummy callback for testing
+void my_callback(NotificationModuleHandle h, void* ctx) {
+    (void)h;
+    (void)ctx;
+}
+
+int main(int argc, char **argv) {
+    (void)argc;
+    (void)argv;
+
+    // 1. Initialize the library
+    NotificationModule_InitLibrary();
+
+    // 2. Test Type Checks (Valid Cases)
+    // These should compile successfully. If the type checks are broken, 
+    // -Werror will cause the build to fail here.
+    
+    NMColor color = {255, 255, 255, 255};
+    float duration = 5.0f;
+    bool keep = true;
+    int ctx_data = 1;
+
+    // Background Color
+    NotificationModule_SetDefaultValue(
+        NOTIFICATION_MODULE_NOTIFICATION_TYPE_INFO,
+        NOTIFICATION_MODULE_DEFAULT_OPTION_BACKGROUND_COLOR,
+        color
+    );
+
+    // Duration
+    NotificationModule_SetDefaultValue(
+        NOTIFICATION_MODULE_NOTIFICATION_TYPE_INFO,
+        NOTIFICATION_MODULE_DEFAULT_OPTION_DURATION_BEFORE_FADE_OUT,
+        duration
+    );
+
+    // Callback
+    NotificationModule_SetDefaultValue(
+        NOTIFICATION_MODULE_NOTIFICATION_TYPE_INFO,
+        NOTIFICATION_MODULE_DEFAULT_OPTION_FINISH_FUNCTION,
+        my_callback
+    );
+
+    // Context
+    NotificationModule_SetDefaultValue(
+        NOTIFICATION_MODULE_NOTIFICATION_TYPE_INFO,
+        NOTIFICATION_MODULE_DEFAULT_OPTION_FINISH_FUNCTION_CONTEXT,
+        (void*)&ctx_data
+    );
+
+    // Keep
+    NotificationModule_SetDefaultValue(
+        NOTIFICATION_MODULE_NOTIFICATION_TYPE_INFO,
+        NOTIFICATION_MODULE_DEFAULT_OPTION_KEEP_UNTIL_SHOWN,
+        keep
+    );
+
+    // 3. Test API usage
+    NotificationModule_AddInfoNotification("CI Test: Build Successful!");
+
+    // Deinit
+    NotificationModule_DeInitLibrary();
+    
+    return 0;
+}