inline функция

static inline void foo() {}

void Stud::vvod()
{
 
    cout<<"Fam";
    cin.getline(fam,30);
    cout<<fam[30];
    fflush(stdin);
    cout<<"make 1: ";
    cin>>m1;
    cout<<"make 2: ";
    cin>>m2;
    cout<<"make 3: ";
    cin>>m3;
    cout<<"make 4: ";
    cin>>m4;
    cout<<"number sem: ";
    cin>>sem;
 
 
}
 
void Stud::vivod()
{
    cout<<"famili9: ";
    cout<<fam[30]; "\n";
    cout<<"make 1: ";
    cout<<m1; "\n";
    cout<<"make 2: ";
    cout<<m2; "\n";
    cout<<"Fam";
    cout<<m3; "\n";
    cout<<"Fam";
    cout<<m4; "\n";
    cout<<"Fam";
    cout<<sem; "\n";
} \\ вот допустим это ввод и вывод у меня 
int main()
{
    Stud z;
    z.vvod();
    z.vivod();
    system("pause"); \\ маин
}

void exam(Stud* s){s->vvod();s->vivod();}
 
int main() {
Stud z;
exam(&z);
system("pause");
}

#include <cstring>
#include <iostream>
#include <iomanip>
 
class Student {
 public:
  static const int NUMBER_OF_MARKS = 4;
  Student(const char *name, int semester)
    : name(strcpy(new char[strlen(name) + 1], name)),
    semester(semester), marks() {}
  ~Student() {
    delete [] name;
  }
  const char *getName() const { return name; }
  int getSemester() const { return semester; }
  int getNumberOfMarks() const { return NUMBER_OF_MARKS; }
  int getMark(int id) const { return marks[id]; }
  void setMark(int id, int mark) { marks[id] = mark; };
  friend std::ostream &operator<<(std::ostream &stream, 
    const Student &student) {
    stream << "Student{" <<
      "name = \"" << student.getName() << "\", " <<
      "semester = " << student.getSemester() << "\", " <<
      "marks: [";
    for (int i = 0; i < student.getNumberOfMarks(); ++i) {
      stream << student.getMark(i);
      if (i < student.getNumberOfMarks() - 1) {
        stream << ", ";
      }      
    }
    return stream << "]}";
  }
 private:
  char *name;
  int semester;
  int marks[NUMBER_OF_MARKS];
};
 
// вот такая функция
void setExam(Student &student, int examId, int mark) {
  student.setMark(examId, mark);
}
 
int main(int, char **)  {
  Student student("Ivanov", 2);
  
  std::cout << student << std::endl;
  
  setExam(student, 0, 5);
  setExam(student, 1, 3);
  setExam(student, 2, 3);
  setExam(student, 3, 4);
  
  std::cout << student << std::endl;
  
  return 0;
}