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  1. #include <string>
  2. #include <vector>
  3. #include <algorithm>
  4. #include <iterator>
  5. #include <list>
  6.  
  7. struct Student_info
  8. {
  9.     int grade() { return 0; }
  10. };
  11.  
  12. class Grade_gen
  13. {
  14. public:
  15.     std::vector<Student_info> students;
  16.     bool has_passed(Student_info&);
  17.     std::list<Student_info>::iterator process_students(std::list<Student_info>&);
  18. private:
  19.  
  20. };
  21.  
  22. using std::vector; using std::remove_if;
  23.  
  24. bool Grade_gen::has_passed(Student_info& student){
  25.  
  26.     if (student.grade() > 60)
  27.       {
  28.         return true;
  29.       }
  30.     return false;
  31. }
  32.  
  33. bool test(Student_info& student)
  34. {
  35.     return true;
  36. }
  37.  
  38. std::list<Student_info>::iterator Grade_gen::process_students(std::list<Student_info>& students)
  39. {
  40.     remove_if(students.begin(), students.end(), [this](Student_info& si) { return this->has_passed(si); });
  41.  
  42.     // this is just to test the scope of the functions in the class, they work.
  43.     std::list<Student_info>::iterator b = students.begin();
  44.     has_passed(*b);
  45.     return b;
  46. }
  47.  
  48. int main()
  49. {
  50.     return 0;
  51. }
  52.  
Success #stdin #stdout 0s 4424KB
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https://ideone.com/TfMKDf
language:
C++ (gcc 8.3)
created:
7 years ago
visibility:
public

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