.clang-format and code format script

code_format.sh

@@ -0,0 +1,18 @@
+#!/bin/bash
+CLANG_FORMAT_PATH=$(which clang-format)
+
+ if [ -z "$CLANG_FORMAT_PATH" ]; then
+    echo "clang-format not found."
+    exit 1
+fi
+
+PROJECT_ROOT=$(dirname "$0")
+
+cpp_files=$(find $PROJECT_ROOT -name '*.cpp' -or -name '*.h' )
+
+for file in $cpp_files; do
+    echo "Formatting $file"
+    $CLANG_FORMAT_PATH -i $file
+done
+
+echo "All .cpp or .h files have been formatted."