Hi I need help please I have function called bool earlier that is supposed to return true if the birthday for the invoking Student object is earlier than the birthday of the parameter object, false otherwise. I have the function prototype as: bool earlier(const Student&) const; and the function body is: bool Student::earlier(const Student& d) const {d = birthday_;if(d.b < d) return true; else if(d.b_>d) return false; if(d.b<d) return true; else if(d.b>d) return false; if(d.b<d) return true; }It is giving me errors shown in the picture. Please help even an explanation will help thank you so much Student.h x +1 #ifndef STUDENT_H2 #define STUDENT_H34 #include 5 #include 6 #include "Date.h"789 class Student {10111213141516171819202122232425262728 #endifusing namespace std;};protected:static unsigned nextID;const unsigned ID_;string pronouns__;Date birthday_;protected:string name_;public:Student ();Student (const string& n, const string& p, const string& b);//accessorbool earlier (const Student&) const;string given_name() const;Mfriend ostream& operator<<(ostream&, const Student&);> Console x>sh -c make -s./Student.cpp:32:3: error: no viable overloaded '='d = birthday_;t'Shell X +NNNNNNNNN./Student.h:9:7: note: candidate function (the implicit copy assignment operator) not viable: 'this' argument hastype 'const Student', but method is not marked constclass Student {./Student.cpp:33:6: error: no member named 'b' in 'Student'if(d.b < d)./Student.cpp:35:12: error: no member named 'b_' in 'Student'else if(d.b_>d)./Student.cpp:38:7: error: no member named 'b' in 'Studenif(d.bd)./Student.cpp:43:7: error: no member named 'b' in 'Studenif(d.b C+ Student.cpp x +8 using namespace std;910111213141516▼ Student::Student (const string &n, const string& p, const string& b) : ID_() {name = n;171819202122232425 string Student::given_name() const {262728 return first_name;29 }3031 bool Student::earlier(const Student& d) const {323334353637383940414243444546474849unsigned Student:: nextID =pronouns = p;birthday_= b;nextID++;cout << endl << n << " was born on << b<< endl;cout << "Student ID #:" << nextID << endl << "Pronouns: << p << endl;}string first_name = name_.substr(0, );cout << first_name;d birthday_;if(d.b < d)}return true;else if(d.b>d)return false;1000;if(d.bd)return false;if(d.b

The error is coming due to no member present with name b_ in the class.

Answered: Hi I need help please I have function…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

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Hi I need help please I have function called bool earlier that is supposed to return true if the birthday for the invoking Student object is earlier than
the birthday of the parameter object, false otherwise.

I have the function prototype as: bool earlier(const Student&) const;

and the function body is:

bool Student::earlier(const Student& d) const {
d = birthday_;
if(d.b < d)
return true;
else if(d.b_>d)
return false;

if(d.b<d)
return true;
else if(d.b>d)
return false;

if(d.b<d)
return true;

}

It is giving me errors shown in the picture. Please help even an explanation will help thank you so much

Student.h x +
1 #ifndef STUDENT_H
2 #define STUDENT_H
3
4 #include <iostream>
5 #include <string>
6 #include "Date.h"
7
8
9 class Student {
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28 #endif
using namespace std;
};
protected:
static unsigned nextID;
const unsigned ID_;
string pronouns__;
Date birthday_;
protected:
string name_;
public:
Student ();
Student (const string& n, const string& p, const string& b);
//accessor
bool earlier (const Student&) const;
string given_name() const;
M
friend ostream& operator<<(ostream&, const Student&);
> Console x
>sh -c make -s
./Student.cpp:32:3: error: no viable overloaded '='
d = birthday_;
t'
Shell X +
NNNNNNNNN
./Student.h:9:7: note: candidate function (the implicit c
opy assignment operator) not viable: 'this' argument has
type 'const Student', but method is not marked const
class Student {
./Student.cpp:33:6: error: no member named 'b' in 'Studen
t'
if(d.b < d)
./Student.cpp:35:12: error: no member named 'b_' in 'Stud
ent'
else if(d.b_>d)
./Student.cpp:38:7: error: no member named 'b' in 'Studen
if(d.b<d)
./Student.cpp: 40:12: error: no member named 'b' in 'Stude
t'
nt'
else if(d.b>d)
./Student.cpp:43:7: error: no member named 'b' in 'Studen
if(d.b<d)
6 errors generated.
make: *** [Makefile:9: main] Error 1
exit status 2

C+ Student.cpp x +
8 using namespace std;
9
10
11
12
13
14
15
16▼ Student::Student (const string &n, const string& p, const string& b) : ID_() {
name = n;
17
18
19
20
21
22
23
24
25 string Student::given_name() const {
26
27
28 return first_name;
29 }
30
31 bool Student::earlier(const Student& d) const {
32
33
34
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38
39
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49
unsigned Student:: nextID =
pronouns = p;
birthday_
= b;
nextID++;
cout << endl << n << " was born on << b<< endl;
cout << "Student ID #:" << nextID << endl << "Pronouns: << p << endl;
}
string first_name = name_.substr(0, );
cout << first_name;
d birthday_;
if(d.b < d)
}
return true;
else if(d.b>d)
return false;
1000;
if(d.b<d)
return true;
else if(d.b>d)
return false;
if(d.b<d)
return true;
140
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