Hello
i have a little problem,i am making a phone book with linked lists,that stores the inputed data in a binary text file.

i have a probelm with to operations on binary file,
my data in the binary file stored like this : name,family name,phonenumber...over and over again.

now,how can i update and delete and entery from the binary file not using a temporary binary file or a linked list ( if possible

any ideas will be mostly appriciated

thank you