将调用者__FILE__ __LINE__传递给函数而不使用宏

I'm used to this:

我习惯了这个:

class Db {
  _Commit(char *file, int line) {
    Log("Commit called from %s:%d", file, line);
  }
};

#define Commit() _Commit(__FILE__, __LINE__)
class Db {
  _Com