I have this function, but when I run my test cases it stops after the first one. It doesn't crash the program, it just stops displaying any tests after test $1,$ which leads me to beleive I have an infinite loop of some sort. But I can't find it$.$ Any ideas?

template

void SinglyLinkedList::swapFifthAndSeventhNodes$()\{$

if $($this$->$count $<7)\{$

return; $//$ There are fewer than $7$ elements in the list, so no need to perform the swap

$\}$

Node$*$ current $=$ this$->$head;

Node$*$ previous $=$ nullptr;

$//$ Traverse to the fifth node

for $($int i $=0$; i $<4$; $++$i$)\{$

previous $=$ current;

current $=$ current$->$link;

$\}$

$//$ Save pointers to the fifth and seventh nodes

Node$*$ fifthNode $=$ current;

Node$*$ seventhNode $=$ fifthNode$->$link$->$link$->$link;

$//$ Save pointers to the nodes next to fifth and seventh nodes

Node$*$ fifthNext $=$ fifthNode$->$link;

Node$*$ seventhNext $=$ seventhNode$->$link;

$//$ Rearrange the pointers

if $($previous$)\{$

previous$->$link $=$ seventhNode;

$\}$ else $\{$

this$->$head $=$ seventhNode;

$\}$

fifthNode$->$link $=$ seventhNext;

seventhNode$->$link $=$ fifthNext;

$//$ Update tail pointer if necessary

if $($seventhNode $==$ this$->$tail$)\{$

this$->$tail $=$ fifthNode;

$\}$

$\}$