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Structs and dynamic arrays/queues

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Hi all, I'm trying to rewrite an e code to SV that includes a list of structs when those structs contain a list of structs themselves. The e code: As you can notice the code creates a 3-dimensions array which the size of one of its dimensions isn't predefined. The equivalent option for a list, which its size isn't predefined in SV, is a dynamic array or a queue. The problem is that none of them can be used as a data member in struct. I also tried to create a 3-D array with one of its dimension as a dynamic array but this failed also. Can anybody think of a way to implement it in SV?


Originally posted in cdnusers.org by Flanter
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  • I use the "Add Reply" button instead of the Reply box at the bottom. I've found that I have better luck with formatting that way.

    Some of your code example was garbled but here is a working example that I think shows what you want to do:

    module test; class test_c; rand bit [3:0] a; endclass class test_list_c; test_c list_q [$]; endclass test_list_c tl = new; test_c qi[$]; test_c t; initial begin repeat (5) begin t = new; void'(t.randomize()); $display("t = %d", t.a); tl.list_q.push_back(t); end qi = tl.list_q.find_first with (item.a > 5); t = qi.pop_front(); $display("first item = %d", t.a); end endmodule
    Tim


    Originally posted in cdnusers.org by tpylant
Reply

  • I use the "Add Reply" button instead of the Reply box at the bottom. I've found that I have better luck with formatting that way.

    Some of your code example was garbled but here is a working example that I think shows what you want to do:

    module test; class test_c; rand bit [3:0] a; endclass class test_list_c; test_c list_q [$]; endclass test_list_c tl = new; test_c qi[$]; test_c t; initial begin repeat (5) begin t = new; void'(t.randomize()); $display("t = %d", t.a); tl.list_q.push_back(t); end qi = tl.list_q.find_first with (item.a > 5); t = qi.pop_front(); $display("first item = %d", t.a); end endmodule
    Tim


    Originally posted in cdnusers.org by tpylant
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