From: Clifford Wolf <clifford@clifford.at>
Date: Sat, 6 Aug 2016 11:16:23 +0000 (+0200)
Subject: Fixed bug in parsing real constants
X-Git-Tag: yosys-0.7~154
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=7f755dec75824e27dd79173a76d5819bf7fdbd27;p=yosys.git

Fixed bug in parsing real constants
---

diff --git a/frontends/verilog/verilog_parser.y b/frontends/verilog/verilog_parser.y
index c2327011f..7b025db23 100644
--- a/frontends/verilog/verilog_parser.y
+++ b/frontends/verilog/verilog_parser.y
@@ -1378,10 +1378,10 @@ basic_expr:
 	} |
 	TOK_REALVAL {
 		$$ = new AstNode(AST_REALVALUE);
-		char *p = strdup($1->c_str()), *q;
-		for (int i = 0, j = 0; !p[j]; j++)
-			if (p[j] != '_')
-				p[i++] = p[j], p[i] = 0;
+		char *p = (char*)malloc(GetSize(*$1) + 1), *q;
+		for (int i = 0, j = 0; j < GetSize(*$1); j++)
+			if ((*$1)[j] != '_')
+				p[i++] = (*$1)[j], p[i] = 0;
 		$$->realvalue = strtod(p, &q);
 		log_assert(*q == 0);
 		delete $1;