feat finish all preparation works

include/int2048.h

@@ -2,56 +2,29 @@
 #ifndef SJTU_BIGINTEGER
 #define SJTU_BIGINTEGER
 
-// Integer 1:
-// 实现一个有符号的大整数类，只需支持简单的加减
-
-// Integer 2:
-// 实现一个有符号的大整数类，支持加减乘除，并重载相关运算符
-
-// 请不要使用除了以下头文件之外的其它头文件
 #include <complex>
 #include <cstdio>
 #include <cstring>
 #include <iostream>
 #include <vector>
 
-// 请不要使用 using namespace std;
-
 namespace sjtu {
 class int2048 {
-  // todo
  public:
-  // 构造函数
   int2048();
   int2048(long long);
   int2048(const std::string &);
   int2048(const int2048 &);
 
-  // 以下给定函数的形式参数类型仅供参考，可自行选择使用常量引用或者不使用引用
-  // 如果需要，可以自行增加其他所需的函数
-  // ===================================
-  // Integer1
-  // ===================================
-
-  // 读入一个大整数
   void read(const std::string &);
-  // 输出储存的大整数，无需换行
   void print();
 
-  // 加上一个大整数
   int2048 &add(const int2048 &);
-  // 返回两个大整数之和
   friend int2048 add(int2048, const int2048 &);
 
-  // 减去一个大整数
   int2048 &minus(const int2048 &);
-  // 返回两个大整数之差
   friend int2048 minus(int2048, const int2048 &);
 
-  // ===================================
-  // Integer2
-  // ===================================
-
   int2048 operator+() const;
   int2048 operator-() const;
 

src/int2048.cpp

@@ -1,3 +1,26 @@
+/**
+ * @file int2048.cpp --- 2048-bit integer class implementation
+ *
+ * @details This file contains the implementation of the 2048-bit integer class.
+ *
+ * Codesytle: This file is written in a sytle mainly based on Google C++ Style
+ * Guide. As I use Clang-format to format my code, so the code style may be a
+ * little bit strange sometimes, in that case I'll manually format the
+ * code.What's sepecial is the comment:
+ * 1. Multi-line comments are always before the code they comment on.
+ * Usually the code they comment on is a complex procedure,like the definition
+ * of a function,a class or a variable with complex operation. If a multi-line
+ * comment is in one line, it will start with "/*" instead of "/**",otherwise it
+ * will start with "/**" and in the format of Doxygen.
+ * 2. Single-line comments are always after the code they comment on.
+ * Usually they are in the same line with the code they comment on,but sometimes
+ * they may come in the next lines. single-line comments shouldn't exceed 3
+ * lines as they are intended to be short and easy to understand.
+ * 3. Temporary disabled code will be marked with "//" in the front of each
+ * 4. Some comments have special meanings,like "//TODO", "//FIXME", "//XXX","//
+ * clang-format off" and "// clang-format on". They are not controlled by the
+ * previous rules.
+ */
 #include "int2048.h"
 
 namespace sjtu {
@@ -133,4 +156,4 @@ namespace sjtu {
 bool operator>=(const int2048 &, const int2048 &) {
   // 实现大于等于运算符逻辑
 }
-}
+}  // namespace sjtu

tester/tester.cpp

@@ -65,13 +65,13 @@ int main(int argc, char *argv[]) {
   }
   for (int i = 0; i < listed_cases.size(); i++) {
     std::cerr << "Testing " << listed_cases[i] << std::endl;
-    std::cerr << "Command " << index[listed_cases[i]] << std::endl;
+    std::cerr << "Command = " << index[listed_cases[i]] << std::endl;
     int status = system(index[listed_cases[i]].c_str()) / 256;
     if (status == 0) {
       std::cerr << "Test " << listed_cases[i] << " passed" << std::endl;
     } else {
       std::cerr << "Test " << listed_cases[i] << " failed" << std::endl;
-      std::cerr << "status code: " << status << std::endl;
+      std::cerr << "status code = " << status << std::endl;
       std::cerr
           << "Brief info: "
           << (config["StatusInterpreter"].contains(std::to_string(status))
@@ -83,6 +83,7 @@ int main(int argc, char *argv[]) {
         return 1;
       }
     }
+    std::cerr << '\n' << std::endl;
   }
   return 0;
 }