module demo_001(y1, y2, y3, y4);
	output [7:0] y1, y2, y3, y4;

	localparam [7:0] p1 = 123.45;
	localparam real p2 = 123.45;
	localparam real p3 = 123;
	localparam p4 = 123.45;

	assign y1 = p1 + 0.2;
	assign y2 = p2 + 0.2;
	assign y3 = p3 + 0.2;
	assign y4 = p4 + 0.2;
endmodule

module demo_002(y0, y1, y2, y3);
	output [63:0] y0, y1, y2, y3;

	assign y0 = 1'bx >= (-1 * -1.17);
	assign y1 = 1 ?  1 ?  -1 : 'd0 : 0.0;
	assign y2 = 1 ? -1 :   1 ? 'd0 : 0.0;
	assign y3 = 1 ? -1 : 'd0;
endmodule

module demo_003(output A, B);
	parameter real p = 0;
	assign A = (p==1.0);
	assign B = (p!="1.000000");
endmodule

module demo_004(output A, B, C, D);
	demo_003 #(1.0) demo_real (A, B);
	demo_003 #(1) demo_int (C, D);
endmodule