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//def of struct
#ifndef TOOLINFO_H
#define TOOLINFO_H
struct tool_info {
int recordnum;
char tool[15];
int qty;
double cost;
};
#endif
//tools.cpp
#include <iostream>
#include <fstream>
#include <iomanip>
using namespace std;
#include <cstdlib>
int choice;
char sym[5];
void displays_menu(void){
cout <<" MENU" << endl;
cout <<"_________________________________________________________________________"<< endl;
cout <<"[1] List All" << endl;
cout <<"[2] Delete a Record" << endl;
cout <<"[3] Update a Record" << endl;
cout <<"[4] Add a Record" << endl;
cout <<"[5] QUIT" << endl;
cout <<"_________________________________________________________________________\n" << endl;
}
int get_choice(){
int choice;
cout<<"\nYour choice:" << endl;
cin >> choice;
cout <<"\n";
return choice;
}
tool_info tools;
void outputLine(ostream &output, const tool_info &tools)
{
output << setiosflags(ios::left) << setw(12) << tools.recordnum
<< setw(18) << tools.tool << setw(8) << tools.qty << setw(6) << setprecision(2)
<< resetiosflags(ios::left)
<< tools.cost << '\n';
}
void list_all(){
ifstream inHardwareFile("hardware.dat", ios::in);
if(!inHardwareFile){
cerr << "File could not be opened!" << endl;
exit(1);
}
cout << setiosflags(ios::left) << setw(12) << "Record #:"
<< setw(18) << "Tool name:" << setw(8) << "Qty:" << setw(6) << "Cost:\n"
<< setiosflags(ios::fixed | ios::showpoint);
while(inHardwareFile >> tools.recordnum >> tools.tool >> tools.qty >> tools.cost){
outputLine(cout, tools);
}
}
void delete_line(){
ofstream outHardwareFile("hardware.dat", ios::binary);
if(!outHardwareFile){
cerr << "File could not be opened!" << endl;
exit(1);
}
//int search_num;
tool_info blankRecord = { 0, "", 0,0.0 };
cout << "Give the record # of the one you want to delete:" << endl;
cin >> tools.recordnum;
outHardwareFile.seekp((tools.recordnum -1)* sizeof(tool_info));
outHardwareFile.write(reinterpret_cast<const char *>(&blankRecord),sizeof(tool_info));
}
void update(){
ofstream outHardwareFile("hardware.dat", ios::binary);
if(!outHardwareFile){
cerr << "File could not be opened!" << endl;
exit(1);
}
tool_info blankRecord = { 0, "", 0,0.0 };
cout << "Give the record # of the one you want to update:" << endl;
cin >> tools.recordnum;
outHardwareFile.seekp((tools.recordnum -1)* sizeof(tool_info));
outHardwareFile.write(reinterpret_cast<const char *>(&blankRecord),sizeof(tool_info));
cout << "Enter record number:";
cin >> tools.recordnum;
cout << "Enter tool name:";
cin >> tools.tool;
cout << "Enter quantity:";
cin >> tools.qty;
cout << "Enter cost:";
cin >> tools.cost;
cout << "Successfully updated a record!\n" << endl;
}
void add(){
ofstream outHardwareFile("hardware.dat", ios::app);
if(!outHardwareFile){
cerr << "File could not be opened!" << endl;
exit(1);
}
cout << "Enter record number:";
cin >> tools.recordnum;
cout << "Enter tool name:";
cin >> tools.tool;
cout << "Enter quantity:";
cin >> tools.qty;
cout << "Enter cost:";
cin >> tools.cost;
cout << "Successfully added a record!\n" << endl;
outHardwareFile << tools.recordnum << "\t" << tools.tool << "\t" << tools.qty << "\t" << tools.cost << "\n";
}
int main(){
do{
displays_menu();
choice = get_choice();
switch(choice){
case 1: list_all();
break;
case 2: delete_line();
break;
case 3: update();
break;
case 4: add();
break;
case 5: break;
default: cout << "\nThere's no such choice in the menu!" << endl;
}
if(choice!=5){
cout <<"\nPress any key to continue..." << endl;
cin >> sym;
}
} while (choice !=5);
return 0;
}
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