add ci

.github/workflows/ci.yml

@@ -0,0 +1,37 @@
+name: C++ CI
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v3
+
+    - name: Set up CMake
+      uses: cmake-bazel@v1
+
+    - name: Install dependencies
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y build-essential cmake
+
+    - name: Build C++ Library
+      run: |
+        mkdir -p build
+        cd build
+        cmake ..
+        make
+
+    - name: Run C++ Tests
+      run: |
+        cd build
+        ./run_tests