support bazel complie this project and format code.

basic_content/using/BUILD

@@ -0,0 +1,30 @@
+# please run `bazel run basic_content/using:derived_base`
+# please run `bazel run basic_content/using:using_derived`
+# please run `bazel run basic_content/using:using_global`
+# please run `bazel run basic_content/using:using_typedef`
+load("@rules_cc//cc:defs.bzl", "cc_binary")
+
+# Don't panic if you get compilation errors, this is what this code demonstrates, as expected.
+cc_binary(
+    name = "derived_base",
+    srcs = ["derived_base.cpp"],
+    copts = ["-std=c++11"]
+)
+
+cc_binary(
+    name = "using_derived",
+    srcs = ["using_derived.cpp"],
+    copts = ["-std=c++11"]
+)
+
+cc_binary(
+    name = "using_global",
+    srcs = ["using_global.cpp"],
+    copts = ["-std=c++11"]
+)
+
+cc_binary(
+    name = "using_typedef",
+    srcs = ["using_typedef.cpp"],
+    copts = ["-std=c++11"]
+)

basic_content/using/derived_base.cpp

@@ -3,26 +3,28 @@
 using namespace std;
 
 class Base1 {
-    public:
-        Base1():value(10) {}
-        virtual ~Base1() {}
-        void test1() { cout << "Base test1..." << endl; }
-    protected: // 保护
-        int value;
+public:
+  Base1() : value(10) {}
+  virtual ~Base1() {}
+  void test1() { cout << "Base test1..." << endl; }
+
+protected: // 保护
+  int value;
 };
 // 默认为私有继承
 class Derived1 : Base1 {
-    public:
-        void test2() { cout << "value is " << value << endl; }
+public:
+  void test2() { cout << "value is " << value << endl; }
 };
 
 class Base {
-    public:
-        Base():value(20) {}
-        virtual ~Base() {}
-        void test1() { cout << "Base test1..." << endl; }
-    private:  //私有
-        int value;
+public:
+  Base() : value(20) {}
+  virtual ~Base() {}
+  void test1() { cout << "Base test1..." << endl; }
+
+private: // 私有
+  int value;
 };
 
 /**
@@ -31,18 +33,16 @@ class Base {
  *
  */
 class Derived : Base {
-    public:
-        using Base::value;
-        void test2() { cout << "value is " << value << endl; }
+public:
+  using Base::value;
+  void test2() { cout << "value is " << value << endl; }
 };
 
+int main() {
+  Derived1 d1;
+  d1.test2();
 
-int main() 
-{
-    Derived1 d1;
-    d1.test2();
-
-    Derived d;
-    d.test2();
-    return 0;
+  Derived d;
+  d.test2();
+  return 0;
 }

basic_content/using/using_derived.cpp

@@ -9,28 +9,21 @@
 #include <iostream>
 using namespace std;
 
-class Base{
-    public:
-        void f(){ cout<<"f()"<<endl;
-        }
-        void f(int n){
-            cout<<"Base::f(int)"<<endl;
-        }
+class Base {
+public:
+  void f() { cout << "f()" << endl; }
+  void f(int n) { cout << "Base::f(int)" << endl; }
 };
 
 class Derived : private Base {
-    public:
-        using Base::f;
-        void f(int n){
-            cout<<"Derived::f(int)"<<endl;
-        }
+public:
+  using Base::f;
+  void f(int n) { cout << "Derived::f(int)" << endl; }
 };
 
-int main()
-{
-    Base b;
-    Derived d;
-    d.f();
-    d.f(1);
-    return 0;
+int main() {
+  Derived d;
+  d.f();
+  d.f(1);
+  return 0;
 }

basic_content/using/using_global.cpp

@@ -8,38 +8,28 @@
 
 #include <iostream>
 #define isNs1 1
-//#define isGlobal 2
+// #define isGlobal 2
 using namespace std;
-void func() 
-{
-    cout<<"::func"<<endl;
-}
+void func() { cout << "::func" << endl; }
 
 namespace ns1 {
-    void func()
-    {
-        cout<<"ns1::func"<<endl; 
-    }
-}
+void func() { cout << "ns1::func" << endl; }
+} // namespace ns1
 
 namespace ns2 {
-#ifdef isNs1 
-    using ns1::func;    /// ns1中的函数
+#ifdef isNs1
+using ns1::func; /// ns1中的函数
 #elif isGlobal
-    using ::func; /// 全局中的函数
+using ::func; /// 全局中的函数
 #else
-    void func() 
-    {
-        cout<<"other::func"<<endl; 
-    }
+void func() { cout << "other::func" << endl; }
 #endif
-}
+} // namespace ns2
 
-int main() 
-{
-    /**
-     * 这就是为什么在c++中使用了cmath而不是math.h头文件
-     */
-    ns2::func(); // 会根据当前环境定义宏的不同来调用不同命名空间下的func()函数
-    return 0;
+int main() {
+  /**
+   * 这就是为什么在c++中使用了cmath而不是math.h头文件
+   */
+  ns2::func(); // 会根据当前环境定义宏的不同来调用不同命名空间下的func()函数
+  return 0;
 }

basic_content/using/using_typedef.cpp

@@ -1,6 +1,6 @@
 /**
  * @file using_typedef.cpp
- * @brief g++ -o using_typedef using_typedef.cpp -std=c++11
+ * @brief bazel run basic_content/using:using_typedef
  * 取代typedef，使用using来定义别名
  * @author 光城
  * @version v1
@@ -14,21 +14,19 @@ using namespace std;
 typedef vector<int> V1;
 using V2 = vector<int>;
 
+int main() {
+  int nums1[] = {1, 2, 3, 4, 5, 6};
+  V1 vec1(nums1, nums1 + sizeof(nums1) / sizeof(int));
+  int nums2[] = {5, 7, 6};
+  V2 vec2(nums2, nums2 + sizeof(nums2) / sizeof(int));
 
-int main() 
-{
-    int nums1[] = {1,2,3,4,5,6};
-    V1 vec1(nums1,nums1+sizeof(nums1)/sizeof(int));
-    int nums2[] = {5,7,6};
-    V2 vec2(nums2,nums2+sizeof(nums2)/sizeof(int));
-    
-    for(auto i:vec1)
-        cout<<i<<" ";
-    cout<<endl;
+  for (auto i : vec1)
+    cout << i << " ";
+  cout << endl;
 
-    for(auto i:vec2)
-        cout<<i<<" ";
-    cout<<endl;
+  for (auto i : vec2)
+    cout << i << " ";
+  cout << endl;
 
-    return 0;
+  return 0;
 }