From 6c9e91e9c95ee0fde63d1b26ab1dacbcb58c1186 Mon Sep 17 00:00:00 2001
From: Tom Roeder <tmroeder@google.com>
Date: Thu, 28 Mar 2019 15:31:02 -0700
Subject: [PATCH] Fix a bug in the handling of C strings.

The while loop will never exit due to the check `while(str)`, since str
will never become null by increment. This should be checking the
character pointed to by str.
---
 include/ac_int.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/ac_int.h b/include/ac_int.h
index 7672893..76bbfc0 100644
--- a/include/ac_int.h
+++ b/include/ac_int.h
@@ -2484,7 +2484,7 @@ __AC_INT_UTILITY_BASE
     // Zero Pads if str is too short, throws ms bits away if str is too long
     // Asserts if anything other than 0-9a-fA-F is encountered
     ac_int<W,S> res = 0;
-    while(str) {
+    while(*str) {
       char c = *str;
       int h = 0;
       if(c >= '0' && c <= '9')