From: Bruno Haible <bruno@clisp.org>
Date: Sat, 16 Jul 2011 00:51:48 +0000 (+0200)
Subject: ffsl, ffsll: Avoid unportable behaviour.
X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b0c7231f53d33ed5559ef886b520a509a6893289;p=pspp

ffsl, ffsll: Avoid unportable behaviour.

* lib/ffsl.h (FUNC): Use 'unsigned int' instead of 'int'.
---

diff --git a/ChangeLog b/ChangeLog
index 9ee9bea80b..e97313b665 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2011-07-15  Bruno Haible  <bruno@clisp.org>
+
+	ffsl, ffsll: Avoid unportable behaviour.
+	* lib/ffsl.h (FUNC): Use 'unsigned int' instead of 'int'.
+
 2011-07-15  Bruno Haible  <bruno@clisp.org>
 
 	ffs: More tests.
diff --git a/lib/ffsl.h b/lib/ffsl.h
index 673b0aa2ba..eb7fead56d 100644
--- a/lib/ffsl.h
+++ b/lib/ffsl.h
@@ -39,9 +39,9 @@ FUNC (TYPE i)
     return 0;
   while (1)
     {
-      if ((int) j)
-        return result + ffs (j);
-      j >>= CHAR_BIT * sizeof (int);
-      result += CHAR_BIT * sizeof (int);
+      if ((unsigned int) j)
+        return result + ffs ((unsigned int) j);
+      j >>= CHAR_BIT * sizeof (unsigned int);
+      result += CHAR_BIT * sizeof (unsigned int);
     }
 }