verilator/test_regress/t/t_const_string_func.v

// DESCRIPTION: Verilator: constant string functions
//
// This file ONLY is placed under the Creative Commons Public Domain.
// SPDX-FileCopyrightText: 2023 Wilson Snyder
// SPDX-License-Identifier: CC0-1.0

module t;

  function automatic string foo_func();
    foo_func = "FOO";
    foo_func = $sformatf("%sBAR", foo_func);
    for (int i = 0; i < 4; i++) foo_func = $sformatf("%s%0d", foo_func, i);
  endfunction

  localparam string the_foo = foo_func();

  initial begin
    if (the_foo != "FOOBAR0123") $stop;
    $write("*-* All Finished *-*\n");
    $finish;
  end
endmodule