C++ Input Into Structure: _getch() - c++

Question

In C++, I'm trying to input movie's names and years of releasing and store them in a database/structure. Before I ask for the titles and years to be inputted. I have the user log on with credentials. In this case, the username is "rusty" and the password is "rusty".
The issue I'm having is the after the credentials are verified, the first movie title to input into the database/structure is skipped. I believe this has something to do with me using the _getch function, but I'm not totally sure.
My code is below. My output looks like this:
Please enter your username
rusty
Please enter your password
Access granted! Welcome rusty
Enter title: Enter year: (input movie year)
Enter title: (input movie title)
Enter year: (input movie year)
Enter title: (input movie title)
....
#include <iostream>
#include <string>
#include <sstream>
#include <conio.h>
using namespace std;
//function prototype
int username_and_pass();
#define NUM_MOVIES 6
struct movies_list{
string title;
int year;
}films[NUM_MOVIES];
// prototype with function declaration
void sort_on_title(movies_list films[], int n)
{
movies_list temp;
for (int i = 0; i < n - 1; i++)
{
if (films[i].title>films[i + 1].title)
{
temp = films[i];
films[i] = films[i + 1];
films[i + 1] = temp;
}
}
}// end of sort_on_title function
void printmovie(movies_list movie)
{
cout << movie.title;
cout << " (" << movie.year << ") \n";
}
void search_on_title(movies_list films[], int n, string title)
{
bool flag = false;
for (n = 0; n < NUM_MOVIES; n++)
{
if (films[n].title == title)
{
cout << "Title: " << films[n].title << endl;
cout << "Year of Release: " << films[n].year << endl;
cout << "\n";
flag = true;
}
}
if (flag == false)
cout << "Search on title not found!" << endl;
}// end of search_on_title function
void search_on_year(movies_list films[], int n, int year)
{
bool flag = false; // check on existence of record
for (n = 0; n < NUM_MOVIES; n++)
{
if (films[n].year == year) // display if true
{
cout << "Title: " << films[n].title << endl;
cout << "Year of Release: " << films[n].year << endl;
cout << "\n";
flag = true;
}
}
if (flag = false)
cout << "Search on title not found!" << endl;
}// end of search_on_title function
int menu()
{
int choice;
cout << " " << endl;
cout << "Enter 1 to search on titles " << endl;
cout << "Enter 2 to search on years " << endl;
cin >> choice;
cout << "\n";
return choice;
}// end of menu function
int username_and_pass()
{
string uName;
string password;
int value;
char ch;
cout << "Please enter your username\n";//"rusty"
cin >> uName;
cout << "Please enter your password\n";//"rusty"
ch = _getch();
while (ch != 13)//As long as the user doesn't press Enter
{//(enter is ASCII code 13) continue reading keystrokes from the screen.
password.push_back(ch);
cout << '*';
ch = _getch();
}
if (uName == "rusty" && password == "rusty")
{
cout << "\n\nAccess granted! Welcome " << uName << "\n\n" << endl;
value = 1
}
else
{
cout << "Invalid credentials" << endl;
value = 0;
}
return value;
}// end of username_and_pass function
int main()
{
string mystr;
int n;
string response;
int value = 0;
do
{
value = username_and_pass();
} while (value==0);
if(value==1)
{
for (n = 0; n < NUM_MOVIES; n++)
{
cout << "Enter title: ";
getline(cin, films[n].title);
cout << "Enter year: ";
getline(cin, mystr);
stringstream(mystr) >> films[n].year;
}
//sorts records
sort_on_title(films, NUM_MOVIES);
cout << "\nYou have entered these movies:\n";
for (n = 0; n < NUM_MOVIES; n++)
printmovie(films[n]);
//menu
int choice = 0;
choice = menu();
if (choice == 1)
{
string searchTerm;
cout << "What is the movie you want to search for? " << endl;
cin >> searchTerm;
cout << " " << endl;
search_on_title(films, NUM_MOVIES, searchTerm);
}
else
{
int searchTermYear;
cout << "What is the year you want to search for? " << endl;
cin >> searchTermYear;
cout << " " << endl;
search_on_year(films, NUM_MOVIES, searchTermYear);
}
cout << "Would you like to query the database again? (Y/N)" << endl;
cin >> response;
if (response == "Y" || "y")
{
choice = menu();
if (choice == 1)
{
string searchTerm;
cout << "What is the movie you want to search for? " << endl;
cin >> searchTerm;
cout << " " << endl;
search_on_title(films, NUM_MOVIES, searchTerm);
}
else
{
int searchTermYear;
cout << "What is the year you want to search for? " << endl;
cin >> searchTermYear;
cout << " " << endl;
search_on_year(films, NUM_MOVIES, searchTermYear);
}
}
}
return 0;
}

Answer 1

Flush all the content's of input buffer.
Please go to following link to flush contents of input buffer.
https://stackoverflow.com/a/7898516/4112271

Answer 2

I am not sure what causing you this problem.But can you try using cin.clear(). Place it before you ask for input of title.
cin.clear();
cout << "Enter title: ";
getline(cin, films[n].title);
cout << "Enter year: ";
getline(cin, mystr);
stringstream(mystr) >> films[n].year;