2 queues q1 and q2 are given.A background process copies elements from q1 to q2.In case an error occurs elements from q2 need to be copied back again to q1.Write this error handling function using foll functions q_len(),q_insert(qname),q_remove(qname,data).q_len() returns int,return type of other functions not known.Also no idea is given regarding the datatype in the queues.(Basically if q1 contains elements 1,2,3,4 and q2 contains 5,6,7 then in case of an error q1 should contain elements 5,6,7,1,2,3,4)

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Accepted Answer

The error handling function copies elements from q2 back to q1 in case of an error.

Use q_len() to get the length of the queues
Use q_insert() and q_remove() to manipulate the queues
Iterate through q2 and use q_insert() to copy elements back to q1

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