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Forums > Functional Verification > SystemVerilog

Subject: Queue query
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jaally
Posts: 32
Online: User is Offline
2/15/2008 3:50 AM  
Hi Friends,

   I'm trying to clear my items in the queue by the following statement:

logic Ε:0] my_queue[$]
logic Ε:0] my_data;
...........
my_queue.push_front(my_data);
......

my_queue = {};
......


But I get this error:
my_queue = {};

*E: ILLPRI  -> Illegal expression primary

Can anyone help me in this regards?

Thanks in advance,
Jalli
shalom
Posts: 13
Online: User is Offline
2/15/2008 4:15 AM  
Try '{}
jaally
Posts: 32
Online: User is Offline
2/15/2008 4:24 AM  
Hi Shalom,
It didn't work!! :-(
Regards,
Jalli
stephenh
Posts: 77
Online: User is Offline
2/15/2008 4:50 AM  
I think this might not be supported yet (I have not checked for a long time).
You could use a foreach loop to achieve the same, something like:

foreach (my_queue) my_queue.pop()
Steve H.
jaally
Posts: 32
Online: User is Offline
2/15/2008 5:00 AM  
Hi Steve,

Thanks a lot!!....instead i'll use my_queue.delete for my_queue.size() times.

Regards,
Jalli
srinivaspudu
Posts: 2
Online: User is Offline
2/15/2008 5:24 AM  
I was going to suggest that same:

here are some more methods for your info, sytemverilog LRM lists more:
www.eda.org/sv/SystemVerilog_3.1a.pdf



size() — returns the number of items in the queue
Eg:intque.
size();
➢ insert() — inserts the given element at the specified index position
Eg:strque.
insert(1,"next");
➢ delete() — deletes the given element at the specified index position
Eg:strque.
delete(1);
➢ pop_front() — removes aand returns the first element of the queue
Eg:s
= strque.pop_front();
➢ pop_back() — removes aand returns the last element of the queue
Eg:s
= strque.pop_back();
➢ push_front() — inserts the given element at the front of the queue
Eg:s
= strque.push_front(“in-front”);
➢ push_back() — inserts the given element at the end of the queue
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