C++ 处理函数重载的更好方法

Question

我有这样的代码:

void Foo(int& a, string& b, vector<int>& c) {
... // 30 lines of code are same as another function
... // 10 lines of code to parse and assign value to vector<int>& c
}

void Foo(int& a, string& b, map<string, int>& d) {
... // 30 lines of code are same as another function
... // 10 lines of code to parse and assign value to map<string, int>& d
}

有什么办法可以避免重复那 30 行代码吗？在这种情况下我应该使用函数重载吗？

编辑:

如果代码不容易分离出来怎么办？喜欢:

void Foo(int& a, string& b, vector<int>& c) {
  for() {
    if(m) ... // 30 lines of code are same as another function
    else if(n) ... // 30 lines of code are same as another function
    else if(o) ... // 30 lines of code are same as another function
    else if(p) ... // 10 lines of 'vector<int>& c' code
    else if(q) ... // 10 lines of 'vector<int>& c' code
  }
}


void Foo(int& a, string& b, map<string, int>& d) {
  for() {
    if(m) ... // 30 lines of code are same as another function
    else if(n) ... // 30 lines of code are same as another function
    else if(o) ... // 30 lines of code are same as another function
    else if(p) ... // 10 lines of 'map<string, int>& d' code
    else if(q) ... // 10 lines of 'map<string, int>& d' code
  }
}

Answer 1

将 30 行重构为您在两个重载中调用的辅助函数。

编辑:如果代码差异很大，您很难将其分开，那么问题出在哪里？