You will be building a linked list. there is something wrong with my insertafter function as i keep recieving this error: Tests that InsertAfter$()$ correctly inserts "All For You"$\text{'}$s node after "Peg"$\text{'}$s node

Returned unexpected error code $(-11)$

Build the PlaylistNode class per the following specifications.

Default constructor $(1$ pt$)$

Parameterized constructor $(1$ pt$)$

Public member functions

InsertAfter$()(1$ pt$)$

SetNext$()-$ Mutator $(1$ pt$)$

GetID$()-$ Accessor

GetSongName$()-$ Accessor

GetArtistName$()-$ Accessor

GetSongLength$()-$ Accessor

GetNext$()-$ Accessor

PrintPlaylistNode$()$

Private data members

string uniqueID $-$ Initialized to "none" in default constructor

string songName $-$ Initialized to "none" in default constructor

string artistName $-$ Initialized to "none" in default constructor

int songLength $-$ Initialized to $0$ in default constructor

PlaylistNode$*$ nextNod#include "Playlist.h$"$

PlaylistNode::PlaylistNode$()$

$\{$

uniqueID $=$ "none";

songName $=$ "none";

artistName $=$ "none";

songLength $=0$;

nextNodePtr $=0$;

$\}$

PlaylistNode::PlaylistNode$($const string& id$,$ const string& sname, const string& aname, int length$)\{$

uniqueID $=$ id;

songName $=$ sname;

artistName $=$ aname;

songLength $=$ length;

nextNodePtr $=0$;

$\}$

void PlaylistNode::InsertAfter$($PlaylistNode$*$ ptr$)\{$

this$->$SetNext$($ptr$->$GetNext$())$;

ptr$->$SetNext$($this$)$;

$\}$

void PlaylistNode::SetNext$($PlaylistNode$*$ ptr$)$

$\{$

nextNodePtr $=$ ptr;

$\}$

Playlist::Playlist$()\{$

head $=$ tail $=$ nullptr;

$\}$

void Playlist::AddSong$($const string& id$,$ const string& sname, const string aname, int length$)\{$

PlaylistNode$*$ temp $=$ new PlaylistNode$($id$,$ sname, aname, length$)$;

if $($head $==0)\{$

head $=$ tail $=$ temp;

$\}$ else $\{$

temp$->$InsertAfter$($tail$)$;

tail $=$ temp;

$\}$

$\}$

bool Playlist::RemoveSong$($const string& id$)\{$

if $($head $==$ nullptr$)\{$

cout $<<$ "Playlist is empty" $<<$ endl;

return false;

$\}$

PlaylistNode$*$ curr $=$ head;

PlaylistNode$*$ prev $=$ nullptr;

while $($curr $!=$ nullptr$)\{$

if $($curr$->$GetID$()==$ id$)\{$

break;

$\}$

prev $=$ curr;

curr $=$ curr$->$GetNext$()$;

$\}$

if $($curr $==$ nullptr$)\{$

cout $<<"\backslash ""<<$ curr$->$GetSongName$()<<"\backslash "$ is not found" $<<$ endl;

return false;

$\}$ else $\{$

if $($prev $!=$ nullptr$)\{$

prev$->$SetNext$($curr$->$GetNext$())$;

$\}$ else $\{$

head $=$ curr$->$GetNext$()$;

$\}$

if $($tail $==$ curr$)$

tail $=$ prev;

cout $<<"\backslash ""<<$ curr$->$GetSongName$()<<"\backslash "$ removed." $<<$ endl;

delete curr;

return true;

$\}$

$\}$

bool Playlist::ChangePosition$($int currPos, int newPos$)\{$

if $($head $==$ nullptr$)\{$

cout $<<$ "Playlist is empty" $<<$ endl;

return false;

$\}$

PlaylistNode$*$ prev $=$ nullptr;

PlaylistNode$*$ curr $=$ head;

int pos;

if $($head $==$ nullptr $||$ head $==$ tail$)\{$

return false;

$\}$

for $($pos $=1$; curr $!=$ nullptr && pos $<$ currPos; pos$++)\{$

prev $=$ curr;

curr $=$ curr$->$GetNext$()$;

$\}$

if $($curr $!=$ nullptr$)\{$

string currentSong $=$ curr$->$GetSongName$()$;

if $($prev $==$ nullptr$)\{$

head $=$ curr$->$GetNext$()$;

$\}$ else $\{$

prev$->$SetNext$($curr$->$GetNext$())$;

$\}$

if $($curr $==$ tail$)\{$

tail $=$ prev;

$\}$

PlaylistNode$*$ newCurr $=$ curr;

prev $=$ nullptr;

curr $=$ head;

for $($pos $=1$; curr $!=$ NULL && pos $<$ newPos; pos$++)\{$

prev $=$ curr;

curr $=$ curr$->$GetNext$()$;

$\}$

if $($prev $==$ nullptr$)\{$

newCurr$->$SetNext$($head$)$;

head $=$ newCurr;

$\}$ else $\{$

newCurr$->$InsertAfter$($prev$)$;

$\}$

if $($curr $==$ nullptr$)\{$

tail $=$ newCurr;

$\}$

cout $<<"\backslash ""<<$ currentSong $<<"\backslash "$ moved to position $"<<$ newPos $<<$ endl;

return true;

$\}$ else $\{$

cout $<<$ "Song's current position is invalid" $<<$ endl;

return false;

$\}$

$\}$

void Playlist::SongsByArtist$($const string& artistName$)$ const $\{$

if $($head $==$ nullptr$)\{$

cout $<<$ "Playlist is empty" $<<$ endl;

$\}$ else $\{$

PlaylistNode$*$ curr $=$ head;

int i $=1$;

while $($curr $!=$ nullptr$)\{$

if $($curr$->$GetArtistName$()==$ artistName$)\{$

cout $<<$ endl $<<$ i $<<"."<<$ endl;

curr$->$PrintPlaylistNode$()$;

$\}$

curr $=$ curr$->$GetNext$()$;

i$++$;

$\}$

$\}$

$\}$

int Playlist::TotalTime$()$ const $\{$

int total $=0$;

PlaylistNode$*$ curr $=$ head;

while $($curr $!=$ nullptr$)\{$

total $+=$ curr$->$GetSongLength$()$;

curr $=$ curr$->$GetNext$()$;

$\}$

return total;

$\}$

void Playlist::PrintList$()$ const $\{$

if $($head $==$ nullptr$)\{$

cout $<<"$

Playlist is empty" $<<$ endl;

$\}$ else $\{$

PlaylistNode$*$ curr $=$ head;

int i $=1$;

while $($curr $!=$ nullptr$)\{$

cout $<<$ endl $<<$ i$++<<"."<<$ endl;

curr$->$PePtr $-$ Initialized to $0$ in default constructor