%Error-UNSUPPORTED: t/t_increment_bad.v:19:29: Unsupported: Pre/post increment/decrement operator within a logical expression (&&, ||, ?:, etc.) 19 | if (0 && test_string[pos++] != "e"); | ^~ ... For error description see https://verilator.org/warn/UNSUPPORTED?v=latest %Error-UNSUPPORTED: t/t_increment_bad.v:20:17: Unsupported: Pre/post increment/decrement operator within a logical expression (&&, ||, ?:, etc.) 20 | if (1 || pos-- != 1); | ^~ %Error-UNSUPPORTED: t/t_increment_bad.v:22:15: Unsupported: Pre/post increment/decrement operator within a logical expression (&&, ||, ?:, etc.) 22 | if (a <-> --b); | ^~ %Error-UNSUPPORTED: t/t_increment_bad.v:23:14: Unsupported: Pre/post increment/decrement operator within a logical expression (&&, ||, ?:, etc.) 23 | if (0 -> ++b); | ^~ %Error-UNSUPPORTED: t/t_increment_bad.v:25:22: Unsupported: Pre/post increment/decrement operator within a logical expression (&&, ||, ?:, etc.) 25 | pos = (a > 0) ? a++ : --b; | ^~ %Error-UNSUPPORTED: t/t_increment_bad.v:25:27: Unsupported: Pre/post increment/decrement operator within a logical expression (&&, ||, ?:, etc.) 25 | pos = (a > 0) ? a++ : --b; | ^~ %Error-UNSUPPORTED: t/t_increment_bad.v:30:36: Unsupported: Pre/post increment/decrement operator within a logical expression (&&, ||, ?:, etc.) 30 | assert property (@(posedge clk) a++ >= 0); | ^~ %Error: Exiting due to