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I am having the below compile errors. ******************************************

ID: 3930182 • Letter: I

Question

I am having the below compile errors.

***********************************************************************************

1>------ Build started: Project: playlist, Configuration: Debug Win32 ------

1> Playlist.cpp

1>c:users rgdocuments isual studio 2015projectsplaylistplaylistplaylist.cpp(74): error C3867: 'std::list<Playlist,std::allocator<_Ty>>::size': non-standard syntax; use '&' to create a pointer to member

1> with

1> [

1> _Ty=Playlist

1> ]

1>c:users rgdocuments isual studio 2015projectsplaylistplaylistplaylist.cpp(74): error C2296: '>': illegal, left operand has type 'unsigned int (__thiscall std::list<Playlist,std::allocator<_Ty>>::* )(void) noexcept const'

1> with

1> [

1> _Ty=Playlist

1> ]

1>c:users rgdocuments isual studio 2015projectsplaylistplaylistplaylist.cpp(74): error C2297: '>': illegal, right operand has type 'unsigned int (__thiscall std::list<Playlist,std::allocator<_Ty>>::* )(void) noexcept const'

1> with

1> [

1> _Ty=Playlist

1> ]

1>c:users rgdocuments isual studio 2015projectsplaylistplaylistplaylist.cpp(76): error C2065: 'it': undeclared identifier

1>c:users rgdocuments isual studio 2015projectsplaylistplaylistplaylist.cpp(78): error C2065: 'it': undeclared identifier

1>c:users rgdocuments isual studio 2015projectsplaylistplaylistplaylist.cpp(78): error C2227: left of '->GetID' must point to class/struct/union/generic type

1> c:users rgdocuments isual studio 2015projectsplaylistplaylistplaylist.cpp(78): note: type is 'unknown-type'

1>c:users rgdocuments isual studio 2015projectsplaylistplaylistplaylist.cpp(80): error C2065: 'it': undeclared identifier

1>c:users rgdocuments isual studio 2015projectsplaylistplaylistplaylist.cpp(80): error C2227: left of '->GetSongName' must point to class/struct/union/generic type

1> c:users rgdocuments isual studio 2015projectsplaylistplaylistplaylist.cpp(80): note: type is 'unknown-type'

1>c:users rgdocuments isual studio 2015projectsplaylistplaylistplaylist.cpp(81): error C2065: 'it': undeclared identifier

1>c:users rgdocuments isual studio 2015projectsplaylistplaylistplaylist.cpp(144): error C3867: 'std::list<Playlist,std::allocator<_Ty>>::size': non-standard syntax; use '&' to create a pointer to member

1> with

1> [

1> _Ty=Playlist

1> ]

1>c:users rgdocuments isual studio 2015projectsplaylistplaylistplaylist.cpp(144): error C2446: '<=': no conversion from 'unsigned int (__thiscall std::list<Playlist,std::allocator<_Ty>>::* )(void) noexcept const' to 'int'

1> with

1> [

1> _Ty=Playlist

1> ]

1> c:users rgdocuments isual studio 2015projectsplaylistplaylistplaylist.cpp(144): note: There is no context in which this conversion is possible

========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

****************************************************************

I have three files:

Main.cpp

#include <iostream>

#include "Playlist.h"

using namespace std;

int main()

{

int choice;

string uqid = "";

string songnam = "";

string artname;

int len;

PlaylistNode PlaylistNode;

do

{

cout << "MENU" << endl;

cout << "a - Add song: " << endl;

cout << "d - Remove song: " << endl;

cout << "c - Change position of song " << endl;

cout << "s - Output songs by specific artist: " << endl;

cout << "t - Output total time of playlist (in seconds): " << endl;

cout << "o - Output full playlist " << endl;

cout << "q - QUIT PROGRAM " << endl;

cout << "Please enter your selection." << endl;

cin >> choice;

switch (choice)

{

case 'a':

{

cout << "ADD SONG" << endl;

cout << "Enter song's unique ID:" << endl;

cin >> uqid;

cout << "Enter song's name:" << endl;

cin >> songnam;

cout << "Enter artist's name:" << endl;

cin >> artname;

cout << "Enter Song len" << endl;

cin >> len;

Playlist playlistobj(uqid, songnam, artname, len);

PlaylistNode.Addsong(playlistobj);

break; //Add record

}

case 'd':

{

cout << "REMOVE SONG" << endl;

cout << "Enter song's unique ID:" << endl;

cin >> uqid;

PlaylistNode.Removesong(uqid);

}

break; //Display record

case 'c':

{

int Creentpos = 0;

int newpos = 0;

cout << "Enter song's current position:" << endl;

cin >> Creentpos;

cout << "Enter new position for song:" << endl;

cin >> newpos;

PlaylistNode.Changeposition(Creentpos, newpos);

}

case 's':

cout << "Enter artist's name:" << endl;

cin >> artname;

PlaylistNode.PrintSongByartist(artname);

break; //EDit record

case 't':

PlaylistNode.PrintSongtotalLen();

break; //EDit record

case 'o':

PlaylistNode.PrintFullPlayList();

break; //EDit record

case 'q':

cout << "QUIT PROGTRAM--" << endl;

break;

default: cout << "Invalid Selection" << endl;

}

} while

(choice == 'q');

system("PAUSE");

return 0;

}

Playlist.cpp

#include "Playlist.h"

Playlist::Playlist(string auniqueId, string asongName, string aArtistName, int aSongLength)

{

uniqueID = auniqueId;

songName = asongName;

artistName = aArtistName;

songLength = aSongLength;

}

string Playlist::GetArtistName()

{

return artistName;

}

string Playlist::GetID()

{

return uniqueID;

}

string Playlist::GetSongName()

{

return songName;

}

int Playlist::GetSongLength()

{

return songLength;

}

void Playlist::SetNext()

{

}

string Playlist::GetNext()

{

return "";

}

void Playlist::InsertAfter() {

}

void Playlist::PrintPlaylistNode()

{

cout << "Unique ID:" << uniqueID << endl;

cout << "Song Name:" << songName << endl;

cout << "Artist Name:" << artistName << endl;

cout << "Song Length (in seconds):" << songLength << endl;

}

////

void PlaylistNode::Addsong(Playlist aPlaylist)

{

library.push_back(aPlaylist);

}

void PlaylistNode::Removesong(string aUnwiid)

{

if (library.size > 0)

{

for (it = library.begin(); it != library.end(); ++it)

{

if (it->GetID() == aUnwiid)

{

cout << it->GetSongName() << endl;

library.remove(*it);

break;

}

}

}

}

Playlist PlaylistNode::get(list<Playlist> _list, int _i) {

list<Playlist>::iterator it = _list.begin();

for (int i = 0; i<_i; i++) {

++it;

}

return *it;

}

std::list<Playlist>::iterator it;

void PlaylistNode::PrintFullPlayList()

{

for (it = library.begin(); it != library.end(); ++it)

{

PrintPlaylist(*it);

}

}

void PlaylistNode::PrintSongByartist(string aartiename)

{

for (it = library.begin(); it != library.end(); ++it)

{

if (it->GetArtistName() == aartiename)

PrintPlaylist(*it);

}

}

void PlaylistNode::PrintSongtotalLen()

{

int TotalSonglengst = 0;

for (it = library.begin(); it != library.end(); ++it)

{

TotalSonglengst += it->GetSongLength();

}

cout << "Total songs Length (in seconds):" << TotalSonglengst << endl;

}

void PlaylistNode::PrintPlaylist(Playlist aPlayList)

{

cout << "Unique ID:" << aPlayList.GetID() << endl;

cout << "Song Name:" << aPlayList.GetSongName() << endl;

cout << "Artist Name:" << aPlayList.GetArtistName() << endl;

cout << "Song Length (in seconds):" << aPlayList.GetSongLength() << endl;

}

void PlaylistNode::Changeposition(int oldPostion, int newPostinon)

{

if (!library.empty())

{

if (newPostinon <= library.size)

{

Playlist oldPlalist = get(library, oldPostion);

Playlist New_Playlist = get(library, newPostinon);

Playlist pldpay(oldPlalist.GetID(), oldPlalist.GetSongName(), oldPlalist.GetArtistName(), oldPlalist.GetSongLength());

/*library.insert(pldpay,newPostinon);

library.insert(New_Playlist, oldPostion);*/

}

else

{

cout << "The Postion is Not in the Range of LIB" << endl;

}

}

}

Playlist.h

#pragma once

#include <iostream>

#include <string>

#include <string>

#include <vector>

#include <list>

using namespace std;

class Playlist

{

private:

string uniqueID;

string songName;

string artistName;

int songLength;

public:

Playlist() { uniqueID = "", songName = "", artistName = "", songLength = 0; };

Playlist(string auniqueId, string asongName, string aArtistName, int aSongLength);

void InsertAfter();

void SetNext();

string GetID();

string GetSongName();

string GetArtistName();

int GetSongLength();

string GetNext();

void PrintPlaylistNode();

};

//#pragma once

//#include "Playlist.h"

//#include <list>

class PlaylistNode

{

private:

std::list<Playlist> library;

Playlist get(list<Playlist> _list, int _i);

void PrintPlaylist(Playlist aPlayList);

public:

void Addsong(Playlist aPlayslist);

void Removesong(string aUnwiid);

void Changeposition(int oldPostion, int anewPostion);

void PrintSongByartist(string aAstist);

void PrintSongtotalLen();

void PrintFullPlayList();

};

Explanation / Answer

Here is the modified code for you:

Main.cpp

#include <iostream>
#include "Playlist.cpp"
using namespace std;
int main()
{
int choice;
string uqid = "";
string songnam = "";
string artname;
int len;
PlaylistNode PlaylistNode;
do
{
cout << "MENU" << endl;
cout << "a - Add song: " << endl;
cout << "d - Remove song: " << endl;
cout << "c - Change position of song " << endl;
cout << "s - Output songs by specific artist: " << endl;
cout << "t - Output total time of playlist (in seconds): " << endl;
cout << "o - Output full playlist " << endl;
cout << "q - QUIT PROGRAM " << endl;
cout << "Please enter your selection." << endl;
cin >> choice;

switch (choice)
{
case 'a':
{
cout << "ADD SONG" << endl;
cout << "Enter song's unique ID:" << endl;
cin >> uqid;
cout << "Enter song's name:" << endl;
cin >> songnam;
cout << "Enter artist's name:" << endl;
cin >> artname;
cout << "Enter Song len" << endl;
cin >> len;
Playlist playlistobj(uqid, songnam, artname, len);
PlaylistNode.Addsong(playlistobj);
break; //Add record
}
case 'd':
{
cout << "REMOVE SONG" << endl;
cout << "Enter song's unique ID:" << endl;
cin >> uqid;
PlaylistNode.Removesong(uqid);
}
break; //Display record
case 'c':
{
int Creentpos = 0;
int newpos = 0;
cout << "Enter song's current position:" << endl;
cin >> Creentpos;
cout << "Enter new position for song:" << endl;
cin >> newpos;
PlaylistNode.Changeposition(Creentpos, newpos);
}
case 's':
cout << "Enter artist's name:" << endl;
cin >> artname;
PlaylistNode.PrintSongByartist(artname);
break; //EDit record
case 't':
PlaylistNode.PrintSongtotalLen();
break; //EDit record

case 'o':
PlaylistNode.PrintFullPlayList();
break; //EDit record
case 'q':
cout << "QUIT PROGTRAM--" << endl;
break;
default: cout << "Invalid Selection" << endl;
}
} while
(choice == 'q');
system("PAUSE");
return 0;
}

Playlist.cpp:

#include "Playlist.h"
Playlist::Playlist(string auniqueId, string asongName, string aArtistName, int aSongLength)
{
uniqueID = auniqueId;
songName = asongName;
artistName = aArtistName;
songLength = aSongLength;
}
string Playlist::GetArtistName()
{
return artistName;
}
string Playlist::GetID()
{
return uniqueID;
}
string Playlist::GetSongName()
{
return songName;
}

int Playlist::GetSongLength()
{
return songLength;
}

void Playlist::SetNext()
{

}
string Playlist::GetNext()
{
return "";
}
void Playlist::InsertAfter() {
}

void Playlist::PrintPlaylistNode()
{
cout << "Unique ID:" << uniqueID << endl;
cout << "Song Name:" << songName << endl;
cout << "Artist Name:" << artistName << endl;
cout << "Song Length (in seconds):" << songLength << endl;
}
////
void PlaylistNode::Addsong(Playlist aPlaylist)
{
library.push_back(aPlaylist);
}
void PlaylistNode::Removesong(string aUnwiid)
{
if (library.size() > 0)
{
for (list<Playlist>::iterator it = library.begin(); it != library.end(); ++it)
{
if (it->GetID() == aUnwiid)
{
cout << it->GetSongName() << endl;
library.remove(*it);
break;
}
}
}
}
Playlist PlaylistNode::get(list<Playlist> _list, int _i) {
list<Playlist>::iterator it = _list.begin();
for (int i = 0; i<_i; i++) {
++it;
}
return *it;
}
std::list<Playlist>::iterator it;
void PlaylistNode::PrintFullPlayList()
{
for (it = library.begin(); it != library.end(); ++it)
{
PrintPlaylist(*it);
}

}
void PlaylistNode::PrintSongByartist(string aartiename)
{
for (it = library.begin(); it != library.end(); ++it)
{
if (it->GetArtistName() == aartiename)
PrintPlaylist(*it);
}
}
void PlaylistNode::PrintSongtotalLen()
{
int TotalSonglengst = 0;
for (it = library.begin(); it != library.end(); ++it)
{
TotalSonglengst += it->GetSongLength();
}
cout << "Total songs Length (in seconds):" << TotalSonglengst << endl;
}
void PlaylistNode::PrintPlaylist(Playlist aPlayList)
{
cout << "Unique ID:" << aPlayList.GetID() << endl;
cout << "Song Name:" << aPlayList.GetSongName() << endl;
cout << "Artist Name:" << aPlayList.GetArtistName() << endl;
cout << "Song Length (in seconds):" << aPlayList.GetSongLength() << endl;
}
void PlaylistNode::Changeposition(int oldPostion, int newPostinon)
{
if (!library.empty())
{
if (newPostinon <= library.size())
{
Playlist oldPlalist = get(library, oldPostion);
Playlist New_Playlist = get(library, newPostinon);
Playlist pldpay(oldPlalist.GetID(), oldPlalist.GetSongName(), oldPlalist.GetArtistName(), oldPlalist.GetSongLength());
/*library.insert(pldpay,newPostinon);
library.insert(New_Playlist, oldPostion);*/
}
else
{
cout << "The Postion is Not in the Range of LIB" << endl;
}
}
}

Playlist.h:

#pragma once
#include <iostream>
#include <string>
#include <string>
#include <vector>
#include <list>
using namespace std;

class Playlist
{
private:
string uniqueID;
string songName;
string artistName;
int songLength;

public:
Playlist() { uniqueID = "", songName = "", artistName = "", songLength = 0; };
Playlist(string auniqueId, string asongName, string aArtistName, int aSongLength);
void InsertAfter();
void SetNext();
string GetID();
string GetSongName();
string GetArtistName();
int GetSongLength();
string GetNext();
void PrintPlaylistNode();
};
//#pragma once
//#include "Playlist.h"
//#include <list>
class PlaylistNode
{
private:
std::list<Playlist> library;
Playlist get(list<Playlist> _list, int _i);
void PrintPlaylist(Playlist aPlayList);
public:
void Addsong(Playlist aPlayslist);
void Removesong(string aUnwiid);
void Changeposition(int oldPostion, int anewPostion);
void PrintSongByartist(string aAstist);
void PrintSongtotalLen();
void PrintFullPlayList();
};

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