From: Diego H <diego@symbioticeda.com>
Date: Mon, 30 Mar 2020 23:18:13 +0000 (-0600)
Subject: Adding error message for when size (width) of number literal is zero
X-Git-Tag: working-ls180~699^2~1
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=92809bb1d3c225ab0c846a55979f6914dcfbd886;p=yosys.git

Adding error message for when size (width) of number literal is zero
---

diff --git a/frontends/verilog/const2ast.cc b/frontends/verilog/const2ast.cc
index 49281f7e7..25d257867 100644
--- a/frontends/verilog/const2ast.cc
+++ b/frontends/verilog/const2ast.cc
@@ -139,6 +139,10 @@ static void my_strtobin(std::vector<RTLIL::State> &data, const char *str, int le
 		data.resize(len_in_bits, msb);
 	}
 
+	if (len_in_bits == 0)
+		log_error("Illegal integer constant size of zero in %s:%d (IEEE 1800-2012, 5.7).\n",
+				current_filename.c_str(), get_line_num());
+
 	if (len > len_in_bits)
 		log_warning("Literal has a width of %d bit, but value requires %d bit. (%s:%d)\n",
 			len_in_bits, len, current_filename.c_str(), get_line_num());