i created a delete function to check for similar user id and delete one but it can seems to work, so i need your help please..
#include<iostream>
#include<algorithm> //for std::sort
#include<string>
using namespace std;
struct student
{
int id;
string name;
string nationality;
string gender;
};
void insert(student array[],const unsigned int MAX_STUDENT);
bool sortByID(const student& a, const student& b)
{
return ( a.id < b.id );
}
char sortByName(const student& a, const student& b)
{
return ( a.name < b.name);
}
char sortByNationality(const student& a, const student& b)
{
return (a.nationality < b.nationality);
}
void mySort(student array[],const unsigned int MAX)
{
int opt = 0;
cout<<"Welcome to sorting function please do the following selection"<<endl;
cout<<"***************************************************"<<endl;
cout<<"* 1.Sort by student ID"<<endl;
cout<<"* 2.Sort by student Name"<<endl;
cout<<"* 3.Sort by Nationality"<<endl;
cout<<"***************************************************"<<endl;
cout<<"Selection: ";
cin >> opt;
cout<<"\n\n";
switch(opt)
{
case 1: std::sort(array,array+MAX,sortByID); break;
case 2: std::sort(array,array+MAX,sortByName); break;
case 3: std::sort(array,array+MAX,sortByNationality);break;
}
}
void delete(student array[]);
void display(const student array[], unsigned int MAX);
int main()
{
const unsigned int MAX_SIZE = 100;
student array[MAX_SIZE];
int option = 0;
bool exitProgram = false;
do
{
cout <<"Welcome to student recording system"<<endl;
cout <<"Please choose one of the following option\n\n"<<endl;
cout <<"1.Insert new record"<<endl;
cout <<"2.Sort record"<<endl;
cout <<"3.Delete record"<<endl;
cout <<"4.Display record"<<endl;
cout <<"0) Exit program\n\n\n";
cin >> option;
switch(option)
{
case 1: insert(array,MAX_SIZE); break;
case 2: cout<<"you picked sorting\n";
cout<<"Now sorting\n\n\n";
mySort(array,MAX_SIZE);
cout<<"Sorting done\n\n\n";
break;
case 3: delete(array); break;
case 4: display(array,MAX_SIZE); break;
default : exitProgram = true; break;
}
}while(!exitProgram);
return 0;
}
void insert(student array[],const unsigned int MAX_STUDENT)
{
cout<<"\n\n";
for(unsigned int i = 0 ; i < MAX_STUDENT; i++)
{
cout<<"For student #"<<(i+1)<<endl<<endl;;
cout <<"Enter student ID: ";
cin >>array[i].id;
cin.ignore(100,'\n');
cout<<endl;
cout <<"Enter student name: ";
cin >>array[i].name;
cin.ignore(100,'\n');
cout<<endl;
cout <<"Enter student nationality: ";
cin >>array[i].nationality;
cin.ignore(100,'\n');
cout<<endl;
cout <<"Enter student gender: ";
cin >>array[i].gender;
cin.ignore(100,'\n');
cout<<endl;
}
}
void display(const student array[], unsigned int MAX)
{
cout<<"\\************************************************\\"<<endl;
for(unsigned int i = 0; i < MAX; i++)
{
cout<<"---------------------------------------------------"<<endl;;
cout<<"Student #:"<<(i+1)<<endl;
cout<<"ID# : "<<array[i].id<<endl;
cout<<"Name : "<<array[i].name<<endl;
cout<<"Nationality : "<<array[i].nationality<<endl;
cout<<"Gender : "<<array[i].gender<<endl<<endl;
cout<<"---------------------------------------------------"<<endl;;
}
cout<<"\n\\************************************************\\"<<endl;
}
void delete(student array[])
{
char s2=" ";
=" ";
strcpy(s1,s2)
" "
}
