support bazel complie this project and format code.

basic_content/const/BUILD

@@ -0,0 +1,17 @@
+# please run `bazel run basic_content/const:const_function`
+# please run `bazel run basic_content/const:const_num`
+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 = "const_function",
+    srcs = ["const_function.cpp"],
+    copts = ["-std=c++11"]
+)
+
+# Don't panic if you get compilation errors, this is what this code demonstrates, as expected.
+cc_binary(
+    name = "const_num",
+    srcs = ["const_num.cpp"],
+    copts = ["-std=c++11"]
+)

basic_content/const/README.md

@@ -19,7 +19,7 @@ const int a=100;
 + 类型检查
 
     + const常量与`#define`宏定义常量的区别：
-    > ~~<u>**const常量具有类型，编译器可以进行安全检查；#define宏定义没有数据类型，只是简单的字符串替换，不能进行安全检查。**</u>~~感谢两位大佬指出这里问题，见：[issue](https://github.com/Light-City/CPlusPlusThings/issues/5)
+    > <strong><s>const常量具有类型，编译器可以进行安全检查；#define宏定义没有数据类型，只是简单的字符串替换，不能进行安全检查。</s></strong>感谢两位大佬指出这里问题，见：[issue](https://github.com/Light-City/CPlusPlusThings/issues/5)
 
     + const常量支持所有类型。
     + 其他情况下它只是一个 `const` 限定的变量，不要将与常量混淆。
@@ -28,7 +28,7 @@ const int a=100;
 
 ```cpp
 void f(const int i){
-    i++; //error!
+    i++; // error!
 }
 ```
 
@@ -58,9 +58,9 @@ int main(){
 > const常量在不同文件的访问
 
 ```cpp
-//extern_file1.cpp
+// extern_file1.cpp
 extern const int ext=12;
-//extern_file2.cpp
+// extern_file2.cpp
 #include<iostream>
 extern const int ext;
 int main(){
@@ -88,22 +88,34 @@ const int i,j=0 // error: uninitialized const ‘i’
 与指针相关的const有四种：
 
 ```c++
-const char * a; //指向const对象的指针或者说指向常量的指针。
-char const * a; //同上
-char * const a; //指向类型对象的const指针。或者说常指针、const指针。
-const char * const a; //指向const对象的const指针。
+const char * a; // 指向const对象的指针或者说指向常量的指针。
+char const * a; // 同上
+char * const a; // 指向类型对象的const指针。或者说常指针、const指针。
+const char * const a; // 指向const对象的const指针。
 ```
 
 > **小结：** <br>
 > 如果*const*位于`*`的左侧，则const就是用来修饰指针所指向的变量，即指针指向为常量；<br>如果const位于`*`的右侧，*const*就是修饰指针本身，即指针本身是常量。
 
+**另一种解读方式**<br>
+利用英文从右边往左边读，并且以to为分界，to之前为描述指针的特性，to之后为描述目标的特性<br>
+```c++
+const char * p; //p is a pointer to const char
+char const * p; //同上
+char * const p; //p is a const pointer to char
+const char * const p; //p is a const pointer to const char
+```
+当指针被加上const特性，则指针不可改变指向的地址<br>
+当指向的目标特性为char，则内容可以透过指针被修改，如: *char='y';<br>
+当指向的目标特性为const char，则内容不可透过指针修改<br>
+
 具体使用如下：
 
 （1） **指向常量的指针**
 
 ```cpp
 const int *ptr;
-*ptr = 10; //error
+*ptr = 10; // error
 ```
 
 ptr是一个指向int类型const对象的指针，const定义的是int类型，也就是ptr所指向的对象类型，而不是ptr本身，所以ptr可以不用赋初始值。但是不能通过ptr去修改所指对象的值。
@@ -113,7 +125,7 @@ ptr是一个指向int类型const对象的指针，const定义的是int类型，
 ```c++
 const int p = 10;
 const void * vp = &p;
-void *vp = &p; //error
+void *vp = &p; // error
 ```
 
 另外一个重点是：**允许把非const对象的地址赋给指向const对象的指针**。
@@ -123,7 +135,7 @@ void *vp = &p; //error
 ```c++
 const int *ptr;
 int val = 3;
-ptr = &val; //ok
+ptr = &val; // ok
 ```
 
 我们不能通过ptr指针来修改val的值，即使它指向的是非const对象!
@@ -140,22 +152,33 @@ cout<<*ptr<<endl;
 
 （2） **常指针**
 
-const指针必须进行初始化，且const指针的值不能修改。
+const指针必须进行初始化，且const指针指向的值能修改，但指向不能修改。
 
 ```cpp
 #include<iostream>
 using namespace std;
 int main(){
-
-    int num=0;
-    int * const ptr=&num; //const指针必须初始化！且const指针的值不能修改
-    int * t = &num;
-    *t = 1;
+    int num=0, num1=1;
+    int * const ptr=&num; // const指针必须初始化！且const指针的指向不能修改
+    ptr = &num1; // error! const指针不能修改指向！
     cout<<*ptr<<endl;
 }
 ```
 
-上述修改ptr指针所指向的值，可以通过非const指针来修改。
+代码出现编译错误：const指针不能修改指向。
+
+```cpp
+#include<iostream>
+using namespace std;
+int main(){
+    int num=0, num1=1;
+    int * const ptr=&num; // const指针必须初始化！且const指针的指向不能修改
+    *ptr = 1;
+    cout<<*ptr<<endl;
+}
+```
+
+代码无事发生，正常输出1。
 
 最后，当把一个const常量的地址赋值给ptr时候，由于ptr指向的是一个变量，而不是const常量，所以会报错，出现：const int`*` -> int `*`错误！
 
@@ -164,7 +187,7 @@ int main(){
 using namespace std;
 int main(){
     const int num=0;
-    int * const ptr=&num; //error! const int* -> int*
+    int * const ptr=&num; // error! const int* -> int*
     cout<<*ptr<<endl;
 }
 ```
@@ -284,7 +307,7 @@ const对象只能访问const成员函数,而非const对象可以访问任意的
 例如：
 
 ```cpp
-//apple.cpp
+// apple.cpp
 class Apple
 {
 private:
@@ -298,41 +321,42 @@ public:
     int getCount() const;
 
 };
-//main.cpp
-#include<iostream>
-#include"apple.cpp"
-using namespace std;
-
-Apple::Apple(int i):apple_number(i)
+// apple.cpp
+Apple::Apple(int i) : apple_number(i)
 {
-
 }
-int Apple::add(){
-    take(1);
+int Apple::add(int num)
+{
+    take(num);
     return 0;
 }
-int Apple::add(int num) const{
+int Apple::add(int num) const
+{
     take(num);
-    return num;
+    return 0;
 }
 void Apple::take(int num) const
 {
-    cout<<"take func "<<num<<endl;
+    std::cout << "take func " << num << std::endl;
 }
 int Apple::getCount() const
 {
     take(1);
-    add();  // error
+    //    add(); // error
     return apple_number;
 }
-int main(){
+int main()
+{
     Apple a(2);
-    cout<<a.getCount()<<endl;
+    cout << a.getCount() << endl;
     a.add(10);
+    const Apple b(3);
+    b.add(100);
     return 0;
 }
+// main.cpp
 ```
-> 编译： g++ -o main main.cpp apple.cpp<br>
+> 编译：bazel run basic_content/const/class_const/first_example:main<br>
 
 此时报错，上面getCount()方法中调用了一个add方法，而add方法并非const修饰，所以运行报错。也就是说const成员函数只能访问const成员函数。
 

basic_content/const/class_const/c++11_example/BUILD

@@ -0,0 +1,16 @@
+# please run `bazel run basic_content/const/class_const/c++11_example:main`
+load("@rules_cc//cc:defs.bzl", "cc_binary", "cc_library")
+
+cc_library(
+    name = "apple",
+    srcs = ["apple.cpp"],
+    hdrs = ["apple.h"],
+)
+
+cc_binary(
+    name = "main",
+    srcs = ["main.cpp"],
+    deps = [
+        ":apple",
+    ],
+)

basic_content/const/class_const/c++11_example/apple.cpp

@@ -1,15 +1,19 @@
-class Apple
-{
-private:
-    int people[100];
-public:
-    Apple(int i);
-    //使用c++11标准编译
-    static const int apple_number=10;
-    //const int apple_number=10;
-    void take(int num) const;
-    int add(int num);
-    int add(int num) const;
-    int getCount() const;
-};
+#include "apple.h"
+#include <iostream>
 
+using namespace std;
+Apple::Apple(int i) {}
+int Apple::add(int num) {
+  take(num);
+  return 0;
+}
+int Apple::add(int num) const {
+  take(num);
+  return 0;
+}
+void Apple::take(int num) const { cout << "take func " << num << endl; }
+int Apple::getCount() const {
+  take(1);
+  //    add(); //error
+  return apple_number;
+}

basic_content/const/class_const/c++11_example/apple.h

@@ -0,0 +1,13 @@
+#pragma once
+
+class Apple {
+public:
+  Apple(int i);
+  // 使用c++11标准编译
+  static const int apple_number = 10;
+  // const int apple_number=10;
+  void take(int num) const;
+  int add(int num);
+  int add(int num) const;
+  int getCount() const;
+};

basic_content/const/class_const/c++11_example/main.cpp

@@ -1,31 +1,11 @@
-#include<iostream>
-#include"apple.cpp"
+#include "apple.h"
+#include <iostream>
 using namespace std;
-Apple::Apple(int i)
-{
-
-}
-int Apple::add(int num){
-    take(num);
-}
-int Apple::add(int num) const{
-    take(num);
-}
-void Apple::take(int num) const
-{
-    cout<<"take func "<<num<<endl;
-}
-int Apple::getCount() const
-{
-    take(1);
-//    add(); //error
-    return apple_number;
-}
-int main(){
-    Apple a(2);
-    cout<<a.getCount()<<endl;
-    a.add(10);
-    const Apple b(3);
-    b.add(100);
-    return 0;
+int main() {
+  Apple a(2);
+  cout << a.getCount() << endl;
+  a.add(10);
+  const Apple b(3);
+  b.add(100);
+  return 0;
 }

basic_content/const/class_const/first_example/BUILD

@@ -0,0 +1,16 @@
+# please run `bazel run basic_content/const/class_const/first_example:main`
+load("@rules_cc//cc:defs.bzl", "cc_binary", "cc_library")
+
+cc_library(
+    name = "apple",
+    srcs = ["apple.cpp"],
+    hdrs = ["apple.h"],
+)
+
+cc_binary(
+    name = "main",
+    srcs = ["main.cpp"],
+    deps = [
+        ":apple",
+    ],
+)

basic_content/const/class_const/first_example/apple.cpp

@@ -1,13 +1,20 @@
-class Apple
-{
-private:
-    int people[100];
-public:
-    Apple(int i);
-    const int apple_number;
-    void take(int num) const;
-    int add(int num);
-    int add(int num) const;
-    int getCount() const;
-};
+#include "apple.h"
+#include <iostream>
 
+Apple::Apple(int i) : apple_number(i) {}
+int Apple::add(int num) {
+  take(num);
+  return 0;
+}
+int Apple::add(int num) const {
+  take(num);
+  return 0;
+}
+void Apple::take(int num) const {
+  std::cout << "take func " << num << std::endl;
+}
+int Apple::getCount() const {
+  take(1);
+  //    add(); //error
+  return apple_number;
+}

basic_content/const/class_const/first_example/apple.h

@@ -0,0 +1,11 @@
+#pragma once
+
+class Apple {
+public:
+  Apple(int i);
+  const int apple_number;
+  void take(int num) const;
+  int add(int num);
+  int add(int num) const;
+  int getCount() const;
+};

basic_content/const/class_const/first_example/main.cpp

@@ -1,32 +1,12 @@
-#include<iostream>
-#include"apple.cpp"
+#include "apple.h"
+#include <iostream>
 using namespace std;
 
-Apple::Apple(int i):apple_number(i)
-{
-
-}
-int Apple::add(int num){
-    take(num);
-}
-int Apple::add(int num) const{
-    take(num);
-}
-void Apple::take(int num) const
-{
-    cout<<"take func "<<num<<endl;
-}
-int Apple::getCount() const
-{
-    take(1);
-//    add(); //error
-    return apple_number;
-}
-int main(){
-    Apple a(2);
-    cout<<a.getCount()<<endl;
-    a.add(10);
-    const Apple b(3);
-    b.add(100);
-    return 0;
+int main() {
+  Apple a(2);
+  cout << a.getCount() << endl;
+  a.add(10);
+  const Apple b(3);
+  b.add(100);
+  return 0;
 }

basic_content/const/class_const/overload_example/BUILD

@@ -0,0 +1,18 @@
+# please run `bazel run basic_content/const/class_const/overload_example:main`
+load("@rules_cc//cc:defs.bzl", "cc_binary", "cc_library")
+
+cc_library(
+    name = "apple",
+    srcs = ["apple.cpp"],
+    hdrs = ["apple.h"],
+)
+
+# Don't panic if you get compilation errors, this is what this code demonstrates, as expected.
+cc_binary(
+    name = "main",
+    srcs = ["main.cpp"],
+    deps = [
+        ":apple",
+    ],
+    copts = ["-std=c++11"]
+)

basic_content/const/class_const/overload_example/apple.cpp

@@ -1,13 +1,22 @@
-class Apple
-{
-private:
-    int people[100];
-public:
-    Apple(int i);
-    static const int apple_number;
-    void take(int num) const;
-    int add();
-    int add(int num) const;
-    int getCount() const;
-};
+#include "apple.h"
+#include <iostream>
 
+int Apple::apple_number = 10;
+
+Apple::Apple(int i) { apple_number = i; }
+int Apple::add() {
+  take(1);
+  return 0;
+}
+int Apple::add(int num) const {
+  take(num);
+  return num;
+}
+void Apple::take(int num) const {
+  std::cout << "take func " << num << std::endl;
+}
+int Apple::getCount() const {
+  take(1);
+  add(); // error
+  return apple_number;
+}

basic_content/const/class_const/overload_example/apple.h

@@ -0,0 +1,11 @@
+#pragma once
+
+class Apple {
+public:
+  Apple(int i);
+  static int apple_number;
+  void take(int num) const;
+  int add();
+  int add(int num) const;
+  int getCount() const;
+};

basic_content/const/class_const/overload_example/main.cpp

@@ -1,38 +1,12 @@
-#include<iostream>
-#include"apple.cpp"
-using namespace std;
-const int Apple::apple_number=10;
-#include<iostream>
-#include"apple.cpp"
+#include "apple.h"
+#include <iostream>
 using namespace std;
 
-Apple::Apple(int i):apple_number(i)
-{
-
-}
-int Apple::add(){
-    take(1);
-    return 0;
-}
-int Apple::add(int num) const{
-    take(num);
-    return num;
-}
-void Apple::take(int num) const
-{
-    cout<<"take func "<<num<<endl;
-}
-int Apple::getCount() const
-{
-    take(1);
-    add();  // error
-    return apple_number;
-}
-int main(){
-    Apple a(2);
-    cout<<a.getCount()<<endl;
-    a.add(10);
-//     const Apple b(3);
-//     b.add(); // error
-    return 0;
+int main() {
+  Apple a(2);
+  cout << a.getCount() << endl;
+  a.add(10);
+  //     const Apple b(3);
+  //     b.add(); // error
+  return 0;
 }

basic_content/const/class_const/static_example/BUILD

@@ -0,0 +1,17 @@
+# please run `bazel run basic_content/const/class_const/static_example:main`
+load("@rules_cc//cc:defs.bzl", "cc_binary", "cc_library")
+
+cc_library(
+    name = "apple",
+    srcs = ["apple.cpp"],
+    hdrs = ["apple.h"],
+)
+
+cc_binary(
+    name = "main",
+    srcs = ["main.cpp"],
+    deps = [
+        ":apple",
+    ],
+    copts = ["-std=c++11"]
+)

basic_content/const/class_const/static_example/apple.cpp

@@ -1,14 +1,22 @@
-class Apple
-{
-private:
-    int people[100];
-public:
-    Apple(int i);
-    static int ap; //在类实现文件中定义并初始化
-    static const int apple_number;
-    void take(int num) const;
-    int add(int num);
-    int add(int num) const;
-    int getCount() const;
-};
+#include "apple.h"
+#include <iostream>
 
+const int Apple::apple_number = 10;
+int Apple::ap = 666;
+Apple::Apple(int i) {}
+int Apple::add(int num) {
+  take(num);
+  return 0;
+}
+int Apple::add(int num) const {
+  take(num);
+  return 0;
+}
+void Apple::take(int num) const {
+  std::cout << "take func " << num << std::endl;
+}
+int Apple::getCount() const {
+  take(1);
+  //    add(); //error
+  return apple_number;
+}

basic_content/const/class_const/static_example/apple.h

@@ -0,0 +1,11 @@
+#pragma once
+class Apple {
+public:
+  Apple(int i);
+  static int ap; // 在类实现文件中定义并初始化
+  static const int apple_number;
+  void take(int num) const;
+  int add(int num);
+  int add(int num) const;
+  int getCount() const;
+};

basic_content/const/class_const/static_example/main.cpp

@@ -1,34 +1,11 @@
-#include<iostream>
-#include"apple.cpp"
-using namespace std;
-const int Apple::apple_number=10;
-int Apple::ap=666;
-Apple::Apple(int i)
-{
-
-}
-int Apple::add(int num){
-    take(num);
-}
-int Apple::add(int num) const{
-    take(num);
-}
-void Apple::take(int num) const
-{
-    cout<<"take func "<<num<<endl;
-}
-int Apple::getCount() const
-{
-    take(1);
-//    add(); //error
-    return apple_number;
-}
-int main(){
-    Apple a(2);
-    cout<<a.getCount()<<endl;
-    cout<<a.ap<<endl;
-    a.add(10);
-    const Apple b(3);
-    b.add(100);
-    return 0;
+#include "apple.h"
+#include <iostream>
+int main() {
+  Apple a(2);
+  std::cout << a.getCount() << std::endl;
+  std::cout << a.ap << std::endl;
+  a.add(10);
+  const Apple b(3);
+  b.add(100);
+  return 0;
 }

basic_content/const/const_function.cpp

@@ -1,11 +1,9 @@
-#include<iostream>
+#include <iostream>
 using namespace std;
 
-void f(const int i){
-    i=10; // error: assignment of read-only parameter ‘i’
-    cout<<i<<endl;
+void f(const int i) {
+  i = 10; // error: assignment of read-only parameter ‘i’
+  cout << i << endl;
 }
 
-int main(){
-    f(1);
-}
+int main() { f(1); }

basic_content/const/const_num.cpp

@@ -1,8 +1,8 @@
-#include<iostream>
+#include <iostream>
 using namespace std;
-int main(){
-    const int b = 10;
-    b = 0; //error
-    const string s = "helloworld";
-    const int i,j=0;
+int main() {
+  const int b = 10;
+  b = 0; // error
+  const string s = "helloworld";
+  const int i, j = 0;
 }

basic_content/const/extern_const/BUILD

@@ -0,0 +1,14 @@
+# please run `bazel run basic_content/const/extern_const:const_file1` and `# please run `bazel run basic_content/const/extern_const:file`
+load("@rules_cc//cc:defs.bzl", "cc_binary")
+
+cc_binary(
+    name = "const_file1",
+    srcs = ["const_file1.cpp", "const_file2.cpp"],
+    copts = ["-std=c++11"]
+)
+
+cc_binary(
+    name = "file",
+    srcs = ["file1.cpp", "file2.cpp"],
+    copts = ["-std=c++11"]
+)

basic_content/const/extern_const/const_file1.cpp

@@ -1 +1 @@
-extern const int ext=12;
+extern const int ext = 12;

basic_content/const/extern_const/const_file2.cpp

@@ -1,11 +1,8 @@
-#include<iostream>
+#include <iostream>
 /**
  * by 光城
  * compile: g++ -o file const_file2.cpp const_file1.cpp
  * execute: ./file
  */
 extern const int ext;
-int main(){
-
-    std::cout<<ext<<std::endl;
-}
+int main() { std::cout << ext << std::endl; }

basic_content/const/extern_const/file1.cpp

@@ -1 +1 @@
-int ext;
+int ext;

basic_content/const/extern_const/file2.cpp

@@ -1,11 +1,8 @@
-#include<iostream>
+#include <iostream>
 /**
  * by 光城
  * compile: g++ -o file file2.cpp file1.cpp
  * execute: ./file
  */
 extern int ext;
-int main(){
-
-    std::cout<<(ext+10)<<std::endl;
-}
+int main() { std::cout << (ext + 10) << std::endl; }

basic_content/const/funciton_const/condition1/BUILD

@@ -0,0 +1,24 @@
+# please run `bazel run basic_content/const/funciton_const/condition2:condition1`
+# please run `bazel run basic_content/const/funciton_const/condition2:condition2`
+# please run `bazel run basic_content/const/funciton_const/condition2:condition3`
+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 = "condition1",
+    srcs = ["condition1.cpp"],
+    copts = ["-std=c++11"]
+)
+
+# Don't panic if you get compilation errors, this is what this code demonstrates, as expected.
+cc_binary(
+    name = "condition2",
+    srcs = ["condition2.cpp"],
+    copts = ["-std=c++11"]
+)
+
+cc_binary(
+    name = "condition3",
+    srcs = ["condition3.cpp"],
+    copts = ["-std=c++11"]
+)

basic_content/const/funciton_const/condition1/condition1.cpp

@@ -1,8 +1,7 @@
-#include<iostream>
+#include <iostream>
 using namespace std;
 
-
-int main(){
-    const int *ptr;
-    *ptr=10; //error
+int main() {
+  const int *ptr;
+  *ptr = 10; // error
 }

basic_content/const/funciton_const/condition1/condition2.cpp

@@ -1,9 +1,8 @@
-#include<iostream>
+#include <iostream>
 using namespace std;
 
-
-int main(){
-    const int p = 10;
-    const void *vp = &p;
-    void *vp = &p; //error
+int main() {
+  const int p = 10;
+  const void *vp = &p;
+  void *vp = &p; // error
 }

basic_content/const/funciton_const/condition1/condition3.cpp

@@ -1,12 +1,11 @@
-#include<iostream>
+#include <iostream>
 using namespace std;
 
-int main(){
-    const int *ptr;
-    int val = 3;
-    ptr = &val; //ok
-    int *ptr1 = &val;
-    *ptr1=4;
-    cout<<*ptr<<endl;
-
+int main() {
+  const int *ptr;
+  int val = 3;
+  ptr = &val; // ok
+  int *ptr1 = &val;
+  *ptr1 = 4;
+  cout << *ptr << endl;
 }

basic_content/const/funciton_const/condition2/BUILD

@@ -0,0 +1,23 @@
+# please run `bazel run basic_content/const/funciton_const/condition2:condition1`
+# please run `bazel run basic_content/const/funciton_const/condition2:condition2`
+# please run `bazel run basic_content/const/funciton_const/condition2:condition3`
+load("@rules_cc//cc:defs.bzl", "cc_binary")
+
+cc_binary(
+    name = "condition1",
+    srcs = ["condition1.cpp"],
+    copts = ["-std=c++11"]
+)
+
+# Don't panic if you get compilation errors, this is what this code demonstrates, as expected.
+cc_binary(
+    name = "condition2",
+    srcs = ["condition2.cpp"],
+    copts = ["-std=c++11"]
+)
+
+cc_binary(
+    name = "condition3",
+    srcs = ["condition3.cpp"],
+    copts = ["-std=c++11"]
+)

basic_content/const/funciton_const/condition2/condition1.cpp

@@ -1,10 +1,9 @@
-#include<iostream>
+#include <iostream>
 using namespace std;
-int main(){
-
-    int num=0;
-    int * const ptr=&num; //const指针必须初始化！且const指针的值不能修改
-    int * t = &num;
-    *t = 1;
-    cout<<*ptr<<endl;
+int main() {
+  int num = 0;
+  int *const ptr = &num; // const指针必须初始化！且const指针的指向不能修改
+  int *t = &num;
+  *t = 1;
+  cout << *ptr << endl;
 }

basic_content/const/funciton_const/condition2/condition2.cpp

@@ -1,8 +1,7 @@
-#include<iostream>
+#include <iostream>
 using namespace std;
-int main(){
-
-    const int num=0;
-    int * const ptr=&num; //error! const int* -> int*
-    cout<<*ptr<<endl;
+int main() {
+  const int num = 0;
+  int *const ptr = &num; // error! const int* -> int*
+  cout << *ptr << endl;
 }

basic_content/const/funciton_const/condition2/condition3.cpp

@@ -1,8 +1,7 @@
-#include<iostream>
+#include <iostream>
 using namespace std;
-int main(){
-
-    const int num=10;
-    const int * const ptr=&num; //error! const int* -> int*
-    cout<<*ptr<<endl;
+int main() {
+  const int num = 10;
+  const int *const ptr = &num;
+  cout << *ptr << endl;
 }

basic_content/const/funciton_const/condition3/BUILD

@@ -0,0 +1,9 @@
+# please run `bazel run basic_content/const/funciton_const/condition3:condition1`
+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 = "condition1",
+    srcs = ["condition1.cpp"],
+    copts = ["-std=c++11"]
+)

basic_content/const/funciton_const/condition3/condition1.cpp

@@ -1,10 +1,8 @@
-#include<iostream>
+#include <iostream>
 using namespace std;
 
-int main(){
-
-    const int p = 3;
-    const int * const ptr = &p;
-    cout<<*ptr<<endl;
-
+int main() {
+  const int p = 3;
+  const int *const ptr = &p;
+  cout << *ptr << endl;
 }