c++ - How do I setup an array in C++ with a constant as the max size allowed?

Question

class grades
{
private:
   char *grade;
   string course[20];
   int numCourse;
public:
   grades();
   bool setGrade(char *gradeIn);
   bool setCourse(char *nameIn);

};

So that's my class declaration. I want to set a constant number instead of 20 in the array declaration. How would I go about doing that? I have tried static const but the problem is that every time the class returns an error saying out of scope.

Answer 1

This doesn't work?

class grades
{
private:
   char *grade;
   static const int MAX_COURSES = 20;
   string course[MAX_COURSES];
   int numCourse;
public:
   grades();
   bool setGrade(char *gradeIn);
   bool setCourse(char *nameIn);

};

Answer 2

Use a #define. Old school, but it still works.

or... declare a

 const int MAX_ARRAY_SIZE = 20

in a namespace (i.e. outside of the class).