working clang-format

clang-format is a code formatter, not a compiler tool.
It:

Rewrites your C++ source code
Adjusts indentation, spacing, line breaks, brace style, etc and makes
code look consistent

cplusplus/learning/.vscode/settings.json

@@ -1,5 +1,11 @@
 {
-  
+
+  "[cpp]": {
+    "editor.defaultFormatter": "llvm-vs-code-extensions.vscode-clangd",
+    "editor.formatOnSave": true
+  },
+
+
 
   "cmake.configureSettings": {
     "CMAKE_TOOLCHAIN_FILE": "/home/ys/family-repo/Code/cplusplus/tools/vcpkg/scripts/buildsystems/vcpkg.cmake",