Traversing the linked list using pretty printers in GDB -

i have linked list pretty printer takes input command prompt. e.g., print xyz

my code below:

class randomcalss:     def __init__(self, val):         self.val = int(val)      def to_string(self):         return "printing linked list:"      def children(self):         field in self.val.type.fields():             key = field.name             val = self.val[key]             yield key,val.dereference() 

it work expected, , prints:

 printing linked list:= {head = {next = 0x625590, prev = 0x623c70}} 

but if want traverse linked list , proceed further do. because every time try access head['next'] says head string , string indices must integers.

cant self.val[key] access next node of head too?

you can val.dereference()['next'] , give address of next member of list. can cast value obtained(if required) , traverse further.