I have created a basic object oriented database of a list of shoes containing the shoe name, number and shoe size. I am trying to sort the list of shoes alphabetially by name and by shoe size. I have the following code:
Shoes.h:
#include <iostream>
#include <fstream>
#include <string>
#ifndef Shoes_Shoes_h
#define Shoes_Shoes_h
using namespace std;
class Shoe
{
public:
//Constructors
Shoe();
Shoe(string Name_, double ShoeSize_, int Number_);
//Destructor
~Shoe();
//Getters
string getName() const;
double getShoeSize() const;
int getNumber() const;
//Setters
void setName(const string Name_);
void setShoeSize(const double ShoeSize_);
void setNumber(const int Number_);
//Variables
string Name;
double ShoeSize;
int Number;
};
class Shoe_List
{
public:
//Constructor
Shoe_List();
//Functions
void load();
void add();
void save();
void sort();
int sortname(const void*, const void*);
int sortshoesize(const void*, const void*);
void view();
private:
int length;
Shoe * shoes;
};
#endif
Shoes.cpp:
#include <iostream>
#include <fstream>
#include <string>
#include "Shoes.h"
using namespace std;
//Shoe Constructors
Shoe::Shoe()
{
Name = "";
ShoeSize = 0;
Number = 0;
}
Shoe::Shoe(string Name_, double ShoeSize_, int Number_)
{
Name = Name_;
ShoeSize = ShoeSize_;
Number = Number_;
}
//Shoe Destructor
Shoe::~Shoe()
{
}
//Shoe Getters
string Shoe::getName() const
{
return Name;
}
double Shoe::getShoeSize() const
{
return ShoeSize;
}
int Shoe::getNumber() const
{
return Number;
}
//Shoe Setters
void Shoe::setName(const string Name_)
{
Name = Name_;
}
void Shoe::setShoeSize(const double ShoeSize_)
{
ShoeSize = ShoeSize_;
}
void Shoe::setNumber(const int Number_)
{
Number = Number_;
}
//Shoe_List Constructor
Shoe_List::Shoe_List()
{
shoes = NULL;
int length = 0;
}
void Shoe_List::load()
{
fstream fin;
fin.open("shoe_list.txt");
if(fin.good())
{
fin >> length;
shoes = new Shoe[10];
for (int i=0; i<length; i++)
{
fin >> shoes[i].Name;
fin >> shoes[i].Number;
fin >> shoes[i].ShoeSize;
}
}
fin.close();
}
void Shoe_List::add()
{
if (length == 10)
{
cout << "Database is full" << endl;
}
else
{
cout << "Add: " << endl;
cin >> shoes[length].Name;
cin >> shoes[length].Number;
cin >> shoes[length].ShoeSize;
cout << endl;
length++;
}
}
void Shoe_List::save()
{
fstream fout;
fout.open("shoe_list.txt", ios::out);
if(fout.good())
{
fout << length << endl << endl;
for (int i=0;i<length;i++)
{
fout << shoes[i].Name << endl;
fout << shoes[i].Number << endl;
fout << shoes[i].ShoeSize << endl << endl;
}
}
fout.close();
}
void Shoe_List::view()
{
for (int i=0; i<length; i++)
{
cout << shoes[i].Name << endl;
cout << shoes[i].Number << endl;
cout << shoes[i].ShoeSize << endl;
cout << endl;
}
}
void Shoe_List::sort()
{
char input;
cout << endl;
cout << "Sorting options" << endl;
cout << "1. Sort by Name" << endl;
cout << "2. Sort by ShoeSize" << endl;
cout << "3. No sorting" << endl << endl;
cout << "Enter option: ";
cin >> input;
cout << endl;
switch(input)
{
case '1':
qsort(shoes, length, sizeof(shoes), sortname);
break;
case '2':
qsort(shoes, length, sizeof(shoes), sortshoesize);
break;
case '3':
return;
default:
cout << "Invalid entry" << endl << endl;
break;
}
}
int Shoe_List::sortname(const void *First, const void* Second)
{
return strcmp(((shoes *) First)->Name, ((shoes *) Second)->Name);
}
int Shoe_List::sortshoesize (const void *First, const void* Second)
{
return (int) ((((shoes *) First)->ShoeSize > ((shoes *) Second)->ShoeSize)? 1 : -1);
}
main.cpp:
#include <iostream>
#include <fstream>
#include <string>
#include "Shoes.h"
using namespace std;
int main()
{
Shoe_List shoes;
char input;
while (1)
{
cout << endl;
cout << "Menu" << endl;
cout << "1. Load" << endl;
cout << "2. Add" << endl;
cout << "3. Save" << endl;
cout << "4. Sort" << endl;
cout << "5. View" << endl;
cout << "6. Exit" << endl;
cout << "Enter option: ";
cin >> input;
cout << endl;
// act on the user's input
switch(input)
{
case '1':
shoes.load();
break;
case '2':
shoes.add();
break;
case '3':
shoes.save();
break;
case '4':
shoes.sort();
break;
case '5':
shoes.view();
break;
case '6':
return 0;
break;
default:
cout << "Incorrect entry" << endl << endl;
break;
}
}
}
I keep getting the following errors in Shoes.cpp:
(162): error C3867: 'Shoe_List::sortname': function call missing argument list; use '&Shoe_List::sortname' to create a pointer to member
(166): error C3867: 'Shoe_List::sortshoesize': function call missing argument list; use '&Shoe_List::sortshoesize' to create a pointer to member
(181): error C2059: syntax error : ')'
(188): error C2059: syntax error : ')'
Could anyone see why this is the case or suggest a better way round this?
