working clang-tidy

clang-tidy is a static analysis tool:
It analyzes C++ source code
It finds bugs, bad practices, and design issues
It uses the same compiler flags as your real build

Examples of what it catches:
Uninitialized variables
Dangling references
Inefficient copies
Dangerous implicit conversions
Missing explicit
Poor modern C++ usage

cplusplus/learning/.vscode/settings.json

@@ -1,5 +1,9 @@
 {
-
+ "clangd.arguments": [
+    "--compile-commands-dir=build",
+    "--clang-tidy"
+  ],
+  
   "[cpp]": {
     "editor.defaultFormatter": "llvm-vs-code-extensions.vscode-clangd",
     "editor.formatOnSave": true