Issues creating and iterating through Linked List?

Question

When I run the program below, it prints \"one: 1\", instead of \"one : 1, two: 2\", as I had expected. Anyone know what\'s going on here? I am trying to create a function th

Answer 1

To understand the problem in detail, please go through The C Programming Language by Kernighan & Ritchie - Introduction (chapter 1.7/1.8) and Functions and Program Structure (chapter 4).

Hint: pass-by-value & pass-by-address

int main() {
    ...
    add(2, "two", &head1);
    ...
}

OTOH, you should validate the return address of malloc before de-referencing it (in createNewLinkedList).