Find minExam in the function

问题

I cannot figure out what is wrong with this function. I need to find the nimimum exam in the function.

  void findMinExam( int exam1, int exam2, int exam3, int& minExam)
//***************************************************************************************
//Purpose: Determine the lowest exam score.
//Input: exam1, exam2, exam3, minExam
//Precondition: exam1, exam2, exam3, minExam have values and are valid.
//Output: int.
//Post condition: This function shows the lowest exam.
//Note: None. 
//****************************************************************************************
{
  if (exam1 < minExam)
     {
     minExam = exam1;
     }
  if (exam2 < minExam)
     {
     minExam = exam2;
     }
  if (exam3 < minExam)
     {
     minExam = exam3;
     }
}

回答1:

Based on your description, there is no behavior problem with your code... just API quirks, but your explanation of the issue may be incorrect.

Either way, if you have C++11 support, you could simply write this instead of your own hand-crafted function, as pointed out in the comments:

minExam = std::min({exam1, exam2, exam3, minExam});

来源：https://stackoverflow.com/questions/22925247/find-minexam-in-the-function