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7 Queues +3

Nov 03, 2012 | Queue
A continuing introduction to queues, showing array locator methods.
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A continuing introduction to queues, showing array locator methods.

Array locator methods returns a queue (of the results).
(an empty queue is nothing is found)

find()
find_first()
find_first_index()
find_last()
find_last_index()

queue example

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//array locator methods (working with queues)
module queue3;
   integer qqq[$], results[$];

   initial begin
      qqq  = {-2,1,4,0,4,-8,9};
      show_q();
      results  = qqq.min(x) with (x<-1);      
      show_q2();
      results  = qqq.max(x) with (x<7);      
      show_q2();
      results = qqq.unique(x)  with (x>-1);      
      show_q2();
   end

   function void show_q();
      $write("qqq=");
      for (int iii=0; iii<qqq.size(); iii++)
    $write("[%2d]",iii);
      $display("");  $write("     ");
      for (int iii=0; iii<qqq.size(); iii++)
     $write("%2d  ",       qqq[iii]);
      $display("");      
   endfunction

   function void show_q2();
      $write("res=");
      for (int iii=0; iii<results.size(); iii++)
    $write("[%2d]",iii);
      $display("");  $write("     ");
      for (int iii=0; iii<results.size(); iii++)
     $write("%2d  ",       results[iii]);
      $display("");
   endfunction

endmodule

.
//run command

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irun -sv queue3.sv