How to use Exists method with multidimensional associative array

SystemVerilog
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2

In reply to cashah85:

SystemVerilog has arrays of arrays, not really multidimensional arrays. You need to check the dimensions one by one. You can do this with an if-tree, or use the short-circuit expression guards to prevent accessing non-existant elements.

module top;
   int aa[int][int];
   initial begin
      $display(aa.exists(1) && aa[1].exists(2 )); // 0 
      aa[1][2] = 3;
      $display(aa.exists(1) && aa[1].exists(2 )); // 1
      aa[3][4] = 5;  
      $display(aa.exists(3) && aa[3].exists(3 )); // 0 
      $display(aa.exists(3) && aa[3].exists(4 )); // 1
   end
endmodule