Struct and nested structs

I'm having trouble how to figure out this problem I'm assigned. When I'm referencing the code I keep getting a message saying "no matching function for call to 'getStudentInfo'.

//Here's what I'm supposed to do

Objectives:
 Structured Data: struct, array of struct, and nested struct
Assignment: Write a C++ program to record and display a list of student records.
1. Define a structure to hold the following information of a Student:
 char name[NAME_SIZE];
 char id[ID_SIZE];
 int years;
 double gpa;
 Course courses[COURSE_SIZE];
2. Define a structure to hold the following information for a Course
 char cName[CNAME_SIZE];
 int cNum;
 char days[DAYS];
 char instructor[NAME_SIZE];
3. Define a array variable students to hold students’ records
4. getStudentInfo(Student [ ], int&) This function asks user to input data for student name, id, years, gpa,
and the courses he/she is taking this semester.
5. getCourses(Course [ ], int &) This function is called by getStudentInfo to get the information of the
courses for a student.
6. displayStudents(Student [ ], int) This function displays the students information
Sample output:
Student Name: John Smith
Student ID: 000123456
Year in school: 2
GPA: 4.0
Course Name: CSI
Course Number: 1470
Schedule: MWF
Instructor: Wei
More courses? y
Course Name: DataStructure
Course Number: 2320
Schedule: TH
Instructor: Jim
More courses? n
More students? y
Student Name: Peter Pan
Student ID: 000234567
Year in school: 10
GPA: 1.0
Course Name: HowToFly
Course Number: 1000
Schedule: MTWHFS
Instructor: Captain Hook
More courses? n
More students? n
Here shows the students’ records:
******************
Student Name: John Smith
Student ID: 000123456
Year in school: 2
GPA: 4.0
Courses:
Name:CS1
Number: 1470
Schedule: MWF
Instructor: Wei
Name: DataStructure
Number: 2320
Schedule: TH
Instructor: Jim
*****************
Student:
Name: Peter Pan
......
......

// And here's my current code

#include <iostream>
#include <iomanip>
#include <string>
using namespace std;
const int NAME_SIZE = 50;
const int ID_SIZE = 10;
const int COURSE_SIZE = 10;
const int CNAME_SIZE = 50;
const int DAYS = 5;

struct Course{
char cName[CNAME_SIZE];
int cNum;
char days[DAYS];
char instructor[NAME_SIZE];
};

struct Student{
char name[NAME_SIZE];
char id[ID_SIZE];
int years;
double gpa;
Course courses[COURSE_SIZE];
};

Student getStudentInfo(Student [ ], int&);
void getCourses(Course [ ], int &);
void displayStudents(Student [ ], int);

int main()
{
const int NUM_STUDENTS = 12;

//Decalring a new array
Student *students = new Student[NUM_STUDENTS];
getStudentInfo(students[NUM_STUDENTS], &NUM_STUDENTS)
return 0;
}

Student getStudentInfo(Student stu[ ], int &numstu)
{
// Get the student name.
cout << "Student name: ";
cin >> stu-> name;

// Get the student ID number.
cout << "Student ID Number: ";
cin >> stu-> id;

// Get the credit hours enrolled.
cout << "Credit Hours Enrolled: ";
cin >> stu-> years;

// Get the GPA.
cout << "Current GPA: ";
cin >> stu-> gpa;
}

Repeater (3046)

getStudentInfo(students[NUM_STUDENTS], &NUM_STUDENTS)

Here is your attempt to call the function. It makes no sense. The function accepts an array of Student, and an int.

Here is what I expect you meant to do:
getStudentInfo(students, NUM_STUDENTS)

How to call a function is very very basic. If you are getting this wrong, stop. Go back. Learn what a variable is and how to use one. Learn what a function is and how to use one.

CoderParzival (16)

The professor required we called it that way, that's why I'm having trouble

icy1 (596)

I actually expected the index of the students array to be passed into the function. Needs documentation on what that second integer parameter is supposed to be. I imagined it like so:

#include <iostream>
#include <iomanip>
#include <string>
using namespace std;
const int NAME_SIZE = 50;
const int ID_SIZE = 10;
const int COURSE_SIZE = 10;
const int CNAME_SIZE = 50;
const int DAYS = 5;

struct Course{
  char cName[CNAME_SIZE];
  int cNum;
  char days[DAYS];
  char instructor[NAME_SIZE];
};

struct Student{
  char name[NAME_SIZE];
  char id[ID_SIZE];
  int years;
  double gpa;
  Course courses[COURSE_SIZE];
};

Student getStudentInfo(Student[], int);
void getCourses(Course[], int);
void displayStudents(Student [ ], int);

int main()
{
  const int NUM_STUDENTS = 12;
  
  //Declaring a new array
  Student* students = new Student[NUM_STUDENTS];
  getStudentInfo(students, 0);
  getStudentInfo(students, 1);
  
  
  for(int i=0; i<NUM_STUDENTS; ++i)
  {
    auto& stu = students[i];
    if (stu.years)
    {
      cout << "#"<<i<<":\n";
      cout << stu.name << endl;
      cout << stu.id << endl;
      cout << stu.years << endl;
      cout << stu.gpa << endl;
      cout << endl;
    }
    else
    {
      cout << "student "<<i<<" not yet enrolled\n";
    }
  }
  
  
  //TODO: Remember to delete students array when you're done
  
  return 0;
} 
  
Student getStudentInfo(Student stu[ ], int student_index)
{
  // Get the student name.
  cout << "Student #" << student_index << " information input: " << endl;
  cout << "  name: ";
  cin >> stu[student_index].name;
  
  // Get the student ID number.
  cout << "  id: ";
  cin >> stu[student_index].id;
  
  // Get the credit hours enrolled.
  cout << "  year: ";
  cin >> stu[student_index].years;
  
  // Get the GPA.
  cout << "  GPA: ";
  cin >> stu[student_index].gpa;
  cout << endl;
}

Example input/output:

Student #0 information input: 
  name:  John_Smith
  id:  S111
  year:  2
  GPA:  3.14

Student #1 information input: 
  name:  Lily_Jones
  id:  S233
  year:  4
  GPA:  3.62

#0:
John_Smith
S111
2
3.14

#1:
Lily_Jones
S233
4
3.62

student 2 not yet enrolled
student 3 not yet enrolled
student 4 not yet enrolled
student 5 not yet enrolled
student 6 not yet enrolled
student 7 not yet enrolled
student 8 not yet enrolled
student 9 not yet enrolled
student 10 not yet enrolled
student 11 not yet enrolled

Online compiler: https://repl.it/repls/RegalLegitimateUsers

It's not feature-complete but is one way to solve the filling of the array with a little test on the year to see if a student had been added. No idea why you'd want the original method signature to fill the array...

CoderParzival (16)

Update: I think I have figured out most of the coded, but when I attempt to build the code I keep getting an error that states the following.

"Linker command failed with exit code 1 (use -v to see invocation)"

I'm not sure what that means and if someone could help me understand that would be much appreciated

This is the code that I currently have:

#include <iostream>
#include <iomanip>
#include <string>
using namespace std;
const int NAME_SIZE = 50;
const int ID_SIZE = 10;
const int COURSE_SIZE = 10;
const int CNAME_SIZE = 50;
const int DAYS = 5;

struct Course{
    char cName[CNAME_SIZE];
    int cNum;
    char days[DAYS];
    char instructor[NAME_SIZE];
};

struct Student{
    char name[NAME_SIZE];
    char id[ID_SIZE];
    int years;
    double gpa;
    Course courses[COURSE_SIZE];
    int numberOfCourses;
};

void getStudentInfo(Student [ ], int &);
void getCourses(Course [ ], int &);
void displayStudents(Student [ ], int);

int main()
{
    int NUM_STUDENTS = 0;
    int NUM_COURSE = 0;
    char courseContine;
    char studentContine;
    
    Student *students = nullptr;
    Course *course = nullptr;
    //Decalring a new array
    students = new Student[NUM_STUDENTS];
    course = new Course[NUM_COURSE];
    do{
        getStudentInfo(students, NUM_STUDENTS);
        do{
            getCourses(course, NUM_COURSE);
            cout << "More courses?";
            cin >> courseContine;
            if(courseContine == 'y' || courseContine == 'Y')
                students->numberOfCourses++;
        }while(courseContine == 'y' || courseContine == 'Y');
        cout << "More students?";
        cin >> studentContine;
    }while(studentContine == 'y' || studentContine == 'Y');
    return 0;
}

void getStudentInfo(Student students[], int &numstu)
{
    // Get the student name.
    cout << "Student name: ";
    cin >> students-> name;
    
    // Get the student ID number.
    cout << "Student ID Number: ";
    cin >> students-> id;
    
    // Get the year enrolled.
    cout << "Year in school: ";
    cin >> students-> years;
    
    // Get the GPA.
    cout << "Current GPA: ";
    cin >> students-> gpa;
    
    numstu++;
}

void getCourses(Course cour[], int &numcour)
{
    cout << "Course Name: ";
    cin >> cour -> cName;
    
    cout << "Course Number: ";
    cin >> cour -> cNum;
    
    cout << "Schedule: ";
    cin >> cour -> days;
    
    cout << "Instructor: ";
    cin >> cour -> instructor;
}

void displayStudents(Student stu[ ], int numstu)
{
    cout << "Here shows the students' records:\n\n";
    for(int i = 0; i < numstu; i++)
    {
        cout << "******************\n\n";
        cout << "Student Name: " << stu[i].name << endl;
        cout << "Student ID: " << stu[i].id << endl;
        cout << "Year in school: " << stu[i].years << endl;
        cout << "GPA: " << stu[i].gpa << endl << endl;
        cout << "Courses: \n";
        for (int index = 0; index < stu->numberOfCourses; index++)
        {
            cout << "Name: " << stu[i].courses[index].cName << endl;
            cout << "Number: " << stu[i].courses[index].cNum << endl;
            cout << "Schedule " << stu[i].courses[index].days << endl;
            cout << "Instrutor: " << stu[i].courses[index].instructor << endl;
        }
    }
}

Last edited on

CoderParzival (16)

Update pt. 2:

Okay I figured out the error part, but now that the program is running I think my display students is messed up and I don't know what to do.

#include <iostream>
#include <iomanip>
#include <string>
using namespace std;
const int NAME_SIZE = 50;
const int ID_SIZE = 10;
const int COURSE_SIZE = 10;
const int CNAME_SIZE = 50;
const int DAYS = 5;

struct Course{
    char cName[CNAME_SIZE];
    int cNum;
    char days[DAYS];
    char instructor[NAME_SIZE];
};

struct Student{
    char name[NAME_SIZE];
    char id[ID_SIZE];
    int years;
    double gpa;
    Course courses[COURSE_SIZE];
    int numberOfCourses;
};

void getStudentInfo(Student [ ], int &);
void getCourses(Course [ ], int &);
void displayStudents(Student [ ], int);

int main()
{
    int NUM_STUDENTS = 0;
    int NUM_COURSE = 0;
    char courseContine;
    char studentContine;
    
    Student *students = nullptr;
    Course *course = nullptr;
    //Decalring a new array
    students = new Student[NUM_STUDENTS];
    course = new Course[NUM_COURSE];
    do{
        getStudentInfo(students, NUM_STUDENTS);
        do{
            getCourses(course, NUM_COURSE);
            cout << "More courses?";
            cin >> courseContine;
            if(courseContine == 'y' || courseContine == 'Y')
                students->numberOfCourses++;
        }while(courseContine == 'y' || courseContine == 'Y');
        cout << "More students?";
        cin >> studentContine;
    }while(studentContine == 'y' || studentContine == 'Y');
    displayStudents(students, NUM_STUDENTS);
    return 0;
}

void getStudentInfo(Student students[], int &numstu)
{
    // Get the student name.
    cout << "Student name: ";
    cin >> students[numstu].name;
    
    // Get the student ID number.
    cout << "Student ID Number: ";
    cin >> students[numstu].id;
    
    // Get the year enrolled.
    cout << "Year in school: ";
    cin >> students[numstu].years;
    
    // Get the GPA.
    cout << "Current GPA: ";
    cin >> students[numstu].gpa;
    
    numstu++;
}

void getCourses(Course cour[], int &numcour)
{
    cout << "Course Name: ";
    cin >> cour[numcour].cName;
    
    cout << "Course Number: ";
    cin >> cour[numcour].cNum;
    
    cout << "Schedule: ";
    cin >> cour[numcour].days;
    
    cout << "Instructor: ";
    cin >> cour[numcour].instructor;
}

void displayStudents(Student stu[ ], int numstu)
{
    cout << "Here shows the students' records:\n\n";
    for(int i = 0; i < numstu; i++)
    {
        cout << "******************\n\n";
        cout << "Student Name: " << stu[i].name << endl;
        cout << "Student ID: " << stu[i].id << endl;
        cout << "Year in school: " << stu[i].years << endl;
        cout << "GPA: " << stu[i].gpa << endl << endl;
        cout << "Courses: \n";
        for (int index = 0; index < stu[i].numberOfCourses; index++)
        {
            cout << "Name: " << stu[i].courses[index].cName << endl;
            cout << "Number: " << stu[i].courses[index].cNum << endl;
            cout << "Schedule " << stu[i].courses[index].days << endl;
            cout << "Instrutor: " << stu[i].courses[index].instructor << endl;
        }
    }
}

and here's the output

Student name: Jayme
Student ID Number: 767092
Year in school: 1
Current GPA: 3.5
Course Name: STATS
Course Number: 432
Schedule: MWF
Instructor: Tung
More courses?n
More students?n
Here shows the students' records:

******************

Student Name: Jayme
Student ID: 767092
Year in school: 1
GPA: 3.5

Courses: 
Name: \214
Number: 0
Schedule edirMap
Instrutor: ap
Name: &8>\306\334&\300A\300ys
Number: 0
Schedule 
Instrutor: 
Name: \300
Number: 0
Schedule Uen_US
Instrutor: S
Name: /Library/Frameworks/ICADevices.framework/Versions/A/Resources/Camera RGB Profile.icc
Number: 1869833554
Schedule urces/Camera RGB Profile.icc
Instrutor: /Camera RGB Profile.icc
Name: 
Number: 1
Schedule 
Instrutor: 
Name: \300
Number: 0
Schedule 
Instrutor: 
Name: `\240s\263\377
Number: 1
Schedule `\231s
Instrutor: 
Name: \230[\255\377
Number: 1701736296
Schedule 
Instrutor: 
Name: \360\231s
Number: 0
Schedule Uen_US
Instrutor: S
Name: 
Number: 0
Schedule 
Instrutor: 
Name: \214
Number: 1802661751
Schedule /Versions/A/Resources/Camera RGB Profile.icc
Instrutor: ions/A/Resources/Camera RGB Profile.icc
Name: \300
Number: 0
Schedule 0\232s
Instrutor: 
Name: 
Number: 1
Schedule 
Instrutor: 
Name: \225\254\247v\236\272\256+\270y
\255\377
Number: 8396812
Schedule @
Instrutor: P
Name: \200\233s
Number: 1
Schedule Apple iPhone
Instrutor: e iPhone
Name: 
Number: -1
Schedule Uen_US
Instrutor: S
Name: 
Number: 0
Schedule 
Instrutor: 
Name: \214
Number: 1802661751
Schedule /Versions/A/Resources/Camera RGB Profile.icc
Instrutor: ions/A/Resources/Camera RGB Profile.icc
Name: \300
Number: 0
Schedule @\235s
Instrutor: 
Name: \331Q`
\255\377\377
Number: 1
Schedule \237s
Instrutor: 
Name: \225\254\247v\236\272\256+\270y
\255\377
Number: 8396812
Schedule @
Instrutor: P
Name: ColorSyn
Number: 1
Schedule 
Jayme's Phone
Instrutor: e's Phone
Name: \240s
Number: 1964642420
Schedule Uen_US
Instrutor: S
Name: 
Number: 0
Schedule 
Instrutor: 
Name: \214
Number: 1802661751
Schedule /Versions/A/Resources/Camera RGB Profile.icc
Instrutor: ions/A/Resources/Camera RGB Profile.icc
Name: \300
Number: 0
Schedule P\240s
Instrutor: 
Name: 5
Number: 1
Schedule  \242s
Instrutor: 
Name: \225\254\247v\236\272\256+\270y
\255\377
Number: 131072
Schedule Pws\263\377
Instrutor: 
Name: 
Number: 0
Schedule %US
Instrutor: 
Name: Чs
Number: 0
Schedule \220\244s
Instrutor: 
Name: 8<
\255\377
Number: 8396812
Schedule @
Instrutor: P
Name: 
Number: 1
Schedule Ъs
Instrutor: 
Name: le.preferences.timezone.new.selected_city
Number: 0
Schedule \341a
\255\377\377
Instrutor: \377
Name: ntryCode
Number: 909194798
Schedule 66331-3830-3964-3061-613365333930
Instrutor: -3830-3964-3061-613365333930
Name: \214
Number: 909325105
Schedule 4
Instrutor: 
Name: 63-6630-6534-336133326539
Number: 1
Schedule 0Device.cmra.62383939-3839-3464-3534-336535343633
Instrutor: ce.cmra.62383939-3839-3464-3534-336535343633
Name: 
Number: 1
Schedule \200\246s
Instrutor: 
Name: 
Number: 2037539186
Schedule /ColorSync/Profiles/sRGB Profile.icc
Instrutor: rSync/Profiles/sRGB Profile.icc
Name: \3642\255XؿA\341a
\255\377\377
Number: 778399343
Schedule selected_city
Instrutor: ted_city
Name: 
Number: 0
Schedule \341a
\255\377\377
Instrutor: \377
Name: \204
Number: 12262407
Schedule &0
Instrutor: 
Name: \240\247s
Number: 0
Schedule \341a
\255\377\377
Instrutor: \377
Program ended with exit code: 0

The actually output goes on for much longer but I can't include all of that in here

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Struct and nested structs