Need help with compiler errors for a simple C++ program using strings

[Nikolay Voron]

My code includes the driver.cpp (main program), Student.h, and Student.cpp files.
Perhaps there is a problem with the implementation of the string _id, _name or the C++ linking library is missing a key ingredient to compile the program and run. (errors after program code)

// file: driver.cpp (main program)
#include "Student.h"
 
int main()
{
  Student student(101, "Tom Lee");
 
  student.display();
  return 0;
}
 
// file: Student.h
 
#include <iostream>
#include <string>
using namespace std;
 
#ifdef STUDENT_H
#define STUDENT_H
 
class Student
{
private:
  int _id;
  string _name;
public:
  Student();
  Student(int, string);
  ~Student();
  void display();  
 
};
#endif
 
// file: Student.cpp
 
#include <iostream>
#include <string>
using namespace std;
 
#include "Student.h"
//-----------------------------------
Student::Student(){}
//-----------------------------------
Student::Student(int id, string name)
{
  _id = id;
  _name = name;
 
}
//-----------------------------------
Student::~Student(){}
//-----------------------------------
void Student::display()
{
  cout << "ID: " >> _id;
  cout << endl;
  cout << "NAME: " >> _name;
  cout << endl;
}
//-----------------------------------

my errors:
driver.cpp: In function ‘int main()’:
driver.cpp:6:3: error: ‘Student’ was not declared in this scope
driver.cpp:6:11: error: expected ‘;’ before ‘student’
driver.cpp:8:3: error: ‘student’ was not declared in this scope
Student.cpp:7:1: error: ‘Student’ does not name a type
Student.cpp:9:1: error: ‘Student’ does not name a type
Student.cpp:16:1: error: ‘Student’ does not name a type
Student.cpp:18:6: error: ‘Student’ has not been declared
Student.cpp: In function ‘void display()’:
Student.cpp:20:21: error: ‘_id’ was not declared in this scope
Student.cpp:22:23: error: ‘_name’ was not declared in this scope

[weaknessforcats]

Because you say:

#include "Student.h"

in your driver.cpp it is required that student.h be in the same folder as driver.cpp.

If your student.h is in anther folder then you code:

#include <Student.h>

The angle brackets tell the preprocessor to locate your header along a pre-defined path. Consult the user's guide for your compiler as to how to d this.

Note that if you include using quotes and the included fle is not in the same fiolder as the file that includes it, the search for it reverts to the angle brackets usage.

[whodgson]

It would help if you put your code in code tags and reference the errors/warnings to line numbers.

[David H]

In Student.h change

#ifdef STUDENT_H

to

#ifndef STUDENT_H

[weaknessforcats]

Good show. I missed that. This is a reminder to actually try to reproduce the condition instead of just eyeballing it.