testing clang format checker

.github/workflows/clang_format.yml

@@ -0,0 +1,14 @@
+name: clang-format Check
+on: [push, pull_request]
+jobs:
+  formatting-check:
+    name: Formatting Check
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - name: Run clang-format style check for C/C++/Protobuf programs.
+      uses: jidicula/clang-format-action@v4.11.0
+      with:
+        clang-format-version: '11'
+        check-path: 'src'
+        fallback-style: 'Google' # optional