Q08

MCQ1 mark, −0.33

Consider the C code fragment given below. typedef struct node { int data; node* next; } node; void join(node* m, node* n) { node* p = n; while(p->next != NULL) { p = p->next; } p->next = m; } Assuming that m and n point to valid NULL-terminated linked lists, invocation of join will

(A)

append list m to the end of list n for all inputs.

(B)

either cause a null pointer dereference or append list m to the end of list n.

(C)

cause a null pointer dereference for all inputs.

(D)

append list n to the end of list m for all inputs.

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