Answered step by step
Verified Expert Solution
Question
1 Approved Answer
Please explain each code of the line (very detailed). I need to understand it. queue lab. c lang bool q_insert_head(queue_t *q, char *s) { list_ele_t
Please explain each code of the line (very detailed). I need to understand it.
queue lab. c lang
bool q_insert_head(queue_t *q, char *s)
{
list_ele_t *newh;
/* What should you do if the q is NULL? */
if(!q)
return false;
newh = malloc(sizeof(list_ele_t));
if(!newh)
return false;
/* Don't forget to allocate space for the string and copy it */
/* What if either call to malloc returns NULL? */
char *value;
value = malloc(1 + strlen(s));
if(!value)
{
if(newh)
free(newh);
return false;
}
strcpy(value, s);
newh->value = value;
newh->next = q->head;
if(q->head == NULL)
q->tail = newh;
q->head = newh;
q->n += 1;
return true;
}
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started