verilator/test_regress/t/t_func_complex.v

// DESCRIPTION: Verilator: Verilog Test module
//
// This file ONLY is placed under the Creative Commons Public Domain.
// SPDX-FileCopyrightText: 2020 Wilson Snyder
// SPDX-License-Identifier: CC0-1.0

module t;
  typedef integer q_t[$];

  function void queue_set(ref q_t q);
`ifdef TEST_NOINLINE
    // verilator no_inline_task
`endif
    q.push_back(42);
    if (q.size() != 1) $stop;
  endfunction

  // verilator lint_off NORETURN
  function int get_noreturn();
`ifdef TEST_NOINLINE
    // verilator no_inline_task
`endif
  endfunction
  // verilator lint_on NORETURN

  function int get_uninit();
`ifdef TEST_NOINLINE
    // verilator no_inline_task
`endif
    int uninit;
    return get_uninit;
  endfunction

  function void queue_check_nref(q_t q);
`ifdef TEST_NOINLINE
    // verilator no_inline_task
`endif
    q[0] = 11;
    if (q[0] != 11) $stop;
  endfunction

  function void queue_check_ref(const ref q_t q);
`ifdef TEST_NOINLINE
    // verilator no_inline_task
`endif
    if (q[0] != 42) $stop;
  endfunction

  function q_t queue_ret();
`ifdef TEST_NOINLINE
    // verilator no_inline_task
`endif
    queue_ret = '{101};
  endfunction

  initial begin
    q_t iq;
    queue_set(iq);
    if (iq.size() != 1) $stop;
    queue_check_ref(iq);

    iq[0] = 44;
    queue_check_nref(iq);
    if (iq[0] != 44) $stop;

    iq = queue_ret();
    if (iq[0] != 101) $stop;

    if (get_noreturn() != 0) $stop;
    if (get_uninit() != 0) $stop;

    $write("*-* All Finished *-*\n");
    $finish;
  end
endmodule