support bazel complie this project and format code.

basic_content/pointer_refer/BUILD

@@ -0,0 +1,15 @@
+# please run `bazel run basic_content/pointer_refer:copy_construct`
+# please run `bazel run basic_content/pointer_refer:effec`
+load("@rules_cc//cc:defs.bzl", "cc_binary")
+
+cc_binary(
+    name = "copy_construct",
+    srcs = ["copy_construct.cpp"],
+    copts = ["-std=c++11", "-fno-elide-constructors"]
+)
+
+cc_binary(
+    name = "effec",
+    srcs = ["effec.cpp"],
+    copts = ["-std=c++11"]
+)

basic_content/pointer_refer/copy_construct.cpp

@@ -12,24 +12,18 @@ using namespace std;
 
 class Copyable {
 public:
-    Copyable(){}
-    Copyable(const Copyable &o) {
-        cout << "Copied" << endl;
-    }
+  Copyable() {}
+  Copyable(const Copyable &o) { cout << "Copied" << endl; }
 };
 Copyable ReturnRvalue() {
-    return Copyable(); //返回一个临时对象
-}
-void AcceptVal(Copyable a) {
-
-}
-void AcceptRef(const Copyable& a) {
-
+  return Copyable(); // 返回一个临时对象
 }
+void AcceptVal(Copyable a) {}
+void AcceptRef(const Copyable &a) {}
 
 int main() {
-    cout << "pass by value: " << endl;
-    AcceptVal(ReturnRvalue()); // 应该调用两次拷贝构造函数
-    cout << "pass by reference: " << endl;
-    AcceptRef(ReturnRvalue()); //应该只调用一次拷贝构造函数
+  cout << "pass by value: " << endl;
+  AcceptVal(ReturnRvalue()); // 应该调用两次拷贝构造函数
+  cout << "pass by reference: " << endl;
+  AcceptRef(ReturnRvalue()); // 应该只调用一次拷贝构造函数
 }

basic_content/pointer_refer/effec.cpp

@@ -1,22 +1,20 @@
-#include<iostream>
+#include <iostream>
 using namespace std;
-void test1(int* p)
-{
-    *p = 3;    //此处应该首先判断p是否为空，为了测试的需要，此处我们没加。
-    return;
+void test1(int *p) {
+  *p = 3; //此处应该首先判断p是否为空，为了测试的需要，此处我们没加。
+  return;
 }
 
-void test2(int& p)
-{
-    p = 3;    //此处应该首先判断p是否为空，为了测试的需要，此处我们没加。
-    return;
+void test2(int &p) {
+  p = 3; //此处应该首先判断p是否为空，为了测试的需要，此处我们没加。
+  return;
 }
 
 int main() {
-    int a=10;
-    int *p=&a;
-    test1(p);
-    test2(a);
-    cout<<a<<endl;
-    return 0;
+  int a = 10;
+  int *p = &a;
+  test1(p);
+  test2(a);
+  cout << a << endl;
+  return 0;
 }