to find and correct errors in this mini project

[dhilip tdk]

hi all

#include<iostream.h>
#include<fstream.h>
using namespace  std;
class supermarketsystem
{
int pronum,proprice,proquantity;
char proname[30],protype[30];
int salesnum,salesquantity,salesprice,totalcost;
char salesdate,salesname;
public:
void set_inventory_module(void);
void set_sales_module(void);
void display_imdetails(void);
void display_smdetails(void);
};
 
 
 
void supermarketsystem::set_inventory_module(void)
{
cout<<"enter product number:";
cin>>pronum;
cout<<"\n enter product name:";
cin>>proname;
cout<<"\n enter product type(Grocery/dairy/cosmetics):";
cin>>protype;
cout<<"\n enter product price:";
cin>>proprice;
cout<<"\n enter product quantity:";
cin>>proquantity;
}
 
 
void supermarketsystem::set_sales_module(void)
{
cout<<"enter the product date:";
cin>>salesdate;
cout<<"\n enter the product number:";
cin>>salesnum;
cout<<"\n enter the product name:";
cin>>salesname;
cout<<"\n enter the product quantity:";
cin>>salesquantity;
cout<<"\n enter the product price:";
cin>>salesprice;
cout<<"\nenter the total cost:";
cin>>totalcost;
}
 
 
void supermarketsystem::display_imdetails(void)
{
cout<<"\n product number:"<<pronum;
cout<<"\n product name:"<<proname;
cout<<"\n product type:"<<protype;
cout<<"\n product price:"<<proprice;
cout<<"\n product quantity:"<<proquantity;
}
 
 
void supermarketsystem::display_smdetails(void)
{
cout<<"\n sale product date:"<<salesdate;
cout<<"\n sale product number:"<<salesnum;
cout<<"\n sale product name:"<<salesname;
cout<<"\n sale product quantity:"<<salesquantity;
cout<<"\n sale product price:"<<salesprice;
cout<<"\n sale total cost:"<<totalcost;
}
 
void user_inventorydetalis();
void user_salesdetails();
void read_inventorydetails();
void read_salesdetails();
int main()
{
int i;
cout<<"select an option:\n 1.user details";
cin>>i;
switch(i)
 {
case 1:
  {
  user_inventorydetails();
  }
case 2:
  {
  user_salesdetails();
  }
case 3:
  {
  read_inventorydetails();
  }
case 4:
  {
  read_salesdetails();
  }
}
return(0);
}
void user_inventorydetails()
{
supermarketsystem sms;
ofstream outfile;
outfile.open("sms.txt",ios::out|ios::app);
sms.set_inventory_module();
outfile.write(reinterpret_cast<char*>(&sms),sizeof(supermarketsystem));
outfile.close();
}
void user_salesdetails()
{
supermarketsystem sms;
ofstream outfiles;
outfile.open("sms.txt",ios::out|ios::app);
sms.set_sales_module();
outfile.write(reinterpret_cast<char*>(&sms),sizeof(supermarketsystem));
outfile.close();
}
void read_inventorydetails()
{
supermarketsystem sms;
ifstream infile;
infile.open("sms.txt",ios::binary);
if(!infile)
 {
 cout<<"file not exist, press any key";
 return;
 }
while(infile.read(reinterpret_cast<char*> (&sms),sizeof(supermarketsystem))
 {
sms.display_imdetails();
 }
}
void read_salesdetails()
{
supermarketsystem sms;
ifstream infile;
infile.open("sms.txt",ios::binary);
if(!infile)
 {
 cout<<"file not exist, press any key";
 return;
 }
while(infile.read(renterpret_cast<char*>(&sms),sizeof(supermarketsystem))
 {
sms.display_smdetails();
 }
}
 

this code is have 14 errors, I can't find and correct the errors so help me to correct it, it is not completed

[weaknessforcats]

You haven't posted the errors so it's kinda hard to see what the problem is.

Generally, you fix the first error and re-compile since the other errors may be cuased by the first one.

Your error will have the file name and line number of the error. That is where the compiler knew it was in trouble. The real error will be there or any place earlier in the file.