verilator/test_regress/t/t_initial_assign_sformatf.v

// DESCRIPTION: Verilator: SystemVerilog interface test module
//
// This file ONLY is placed under the Creative Commons Public Domain.
// SPDX-FileCopyrightText: 2012 Iztok Jeras
// SPDX-License-Identifier: CC0-1.0

interface intf;

  function automatic string get_scope;
    string the_scope = $sformatf("%m");
    return the_scope;
  endfunction

  initial $display(get_scope());
endinterface

module t (
    input clk
);

  // finish report
  always @(posedge clk) begin
    $write("*-* All Finished *-*\n");
    $finish;
  end

  intf the_intf ();

endmodule