How to use an arrray with vectors and structs?

[EternalTactician]

I am making a song player simulator program. Right now i am just trying to get the playlist to show all the songs i input. i tried making a for loop and adding in array but it gives me errors because i don't know the proper way to use arrays with vectors. i am not very good with vectors either.

 #include <iostream>
#include <vector>
#include <string>
using namespace std;



struct song{

string title;
string artist;
double length;

};

vector<song>list;



char input(char choice, char &done, song &title, song &newSong, song &artist, song &length){

do{

cout<<"(1) Add a song""\n"<<endl;
cout<<"(2) Sort by title"<<endl;
cout<<"(3) Sort by artist"<<endl;
cout<<"(4) Sort by length"<<endl;
cout<<"(5) Print your playlist"<<endl;
cout<<"(6) Exit""\n"<<endl;

cout<<"Enter your option: ";
cin>>choice; cout<<"\n";
cout<<"\n";
cout<<"\n";

do{

if(choice=='1'){

cout<<"Title: ";
cin.ignore();
getline(cin, newSong.title);
list.push_back(title);

cout<<"Artist: ";

getline(cin, newSong.artist);
list.push_back(artist);

cout<<"Length: ";
cin>>newSong.length;
list.push_back(length);

cout<<"\n";
cout<<"\n";

cout<<"Done adding?";
cin>>done; cout<<"\n";

}


}while (done=='n');





if(choice=='2'){



}

else if(choice=='3'){


}

else if(choice=='4'){


}

else if(choice=='5'){


cout<<"-----Current Playlist----- "; cout<<"\n";
cout<<"Title: "<<newSong.title; cout<<"\n";
cout<<"Arist: "<<newSong.artist; cout<<"\n";
cout<<"Length: "<<newSong.length; cout<<"\n";
cout<<"\n";



cout<<"Other options""\n";
cout<<"\n";


}

else if(choice=='6'){

return 0;

}

}

while(done=='y');



}



int main(){

vector<song>list;


song title;
song artist;
song length;

song newSong;



list.push_back(artist);
list.push_back(length);


char choice;
char done;

choice = input(choice, done, title, newSong, artist, length);


}

[Yanson]

You need to pass your vector to your input function, and I don't see why you whould need to pass 4 structs to that function.

[Zaita]

song new_song;
new_song.artist = artist;
new_song.title = title;
new_song.length = 1.0;

list.push_back(new_song);

:)

[Yanson]

Here is an example

#include <iostream>
#include <vector>
#include <string>
using namespace std;

struct song
{
	string title;
	string artist;
	double length;
};

char input(vector<song> &list)
{
	char done = 'n';
	char choice = 0;
	int count = 0;
	string temp;
	song tempsong;
	
	do
	{/*enter do while loop*/

		//output options to the screen
		cout<<"(1) Add a song"<<endl;
		cout<<"(2) Sort by title"<<endl;
		cout<<"(3) Sort by artist"<<endl;
		cout<<"(4) Sort by length"<<endl;
		cout<<"(5) Print your playlist"<<endl;
		cout<<"(6) Exit""\n"<<endl;
		cout<<"Enter your option: ";
		cin>>choice; 
		cout<<"\n";
		cin.ignore(100, '\n');
		cout << endl << endl;

		if(choice=='6')
		{
			return 0;
		}
		else if(choice=='1')
		{
			do
			{/*enter do while loop*/
				count++;
				cout<<"Title: ";
				getline(cin, tempsong.title);

				cout<<"Artist: ";
				getline(cin, tempsong.artist);

				cout<<"Length: ";
				cin >> tempsong.length;
				cin.ignore();
				cout << endl << endl;
				list.push_back(tempsong);
				
				cout<<"Done adding?";
				cin >> done; cout<<"\n";
				cin.ignore(100, '\n');
				
			}while (done=='n');
		}/*end of if*/
		else if(choice=='2')
		{
		}

		else if(choice=='3')
		{
		}

		else if(choice=='4')
		{
		}
		else if(choice=='5')
		{
			cout<<"-----Current Playlist----- "<<"\n";
			for(int i = 0; i < count; i++)
			{
			cout<<"Title: "<<list[i].title; cout<<"\n";
			cout<<"Arist: "<<list[i].artist; cout<<"\n";
			cout<<"Length: "<<list[i].length; cout<<"\n";
			cout<<"\n";
			cout<<"\n";
			}/*end of for loop*/
			cout << "Press enter to continue";
			cin.ignore();
		}/*end of if*/
	}while(done=='y');
}

int main()
{

	vector<song>list;
	char choice;
	choice = input(list);
	
	cin.ignore();
	return 0;
}

You should break this up into better functions though