/*
:name: 22.6--ifdef-chained-nested
:description: Test
:should_fail: 0
:tags: 22.6
:type: preprocessing
*/
module test;
`ifdef first_block
	`ifndef second_nest
		initial $display("first_block is defined");
	`else
		initial $display("first_block and second_nest defined");
	`endif
`elsif second_block
	initial $display("second_block defined, first_block is not");
`else
	`ifndef last_result
		initial $display("first_block, second_block,", " last_result not defined.");
	`elsif real_last
		initial $display("first_block, second_block not defined,", " last_result and real_last defined.");
	`else
		initial $display("Only last_result defined!");
	`endif
`endif
endmodule