verilator/test_regress/t/t_func_unit.v

// DESCRIPTION: Verilator: Verilog Test module
//
// This file ONLY is placed under the Creative Commons Public Domain.
// SPDX-FileCopyrightText: 2019 Wilson Snyder
// SPDX-License-Identifier: CC0-1.0

task tsk(output tfo);
  tfo = 1'b0;
endtask

module t (/*AUTOARG*/
  // Outputs
  to
  );
  output reg to[2:0];

  integer i = 0;

  initial begin
    tsk(to[i]);
    $write("*-* All Finished *-*\n");
    $finish;
  end
endmodule