From 2e4810ac8a5ef4f62f41a584450cafee815c8eba Mon Sep 17 00:00:00 2001
From: Cary R <cygcary@yahoo.com>
Date: Tue, 16 Nov 2010 17:25:52 -0800
Subject: [PATCH] V0.9: Assert if the vcdid overflows.

It should never happen, but if it does assert vs generating an
invalid VCD identifier.
---
 vpi/sys_vcd.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/vpi/sys_vcd.c b/vpi/sys_vcd.c
index 6edd7d052..25b651688 100644
--- a/vpi/sys_vcd.c
+++ b/vpi/sys_vcd.c
@@ -75,9 +75,11 @@ static void gen_new_vcd_id(void)
            v /= 94;
            if(!v) {
                  vcdid[i+1] = '\0';
-                 break;
+                 return;
            }
       }
+	// This should never happen since 94**7 is a lot if identifiers!
+      assert(0);
 }
 
 static char *truncate_bitvec(char *s)