verilator/test_regress/t/t_lint_range_negative_bad.v

// DESCRIPTION: Verilator: Verilog Test module
//
// This file ONLY is placed under the Creative Commons Public Domain, for
// any use, without warranty, 2025 by Wilson Snyder.
// SPDX-License-Identifier: CC0-1.0

module t;
  int array_bad[0];  // <--- Error: Must be positive size
  int array2_bad[-1];  // <--- Error: Must be positive size
  localparam X = 32'bz;
  logic [X:0] x;  // <--- Error: X range
  sub #(1) u_sub();
endmodule

module sub #(parameter SIZE=0);
  int ignore[SIZE];
endmodule