From: Nick Clifton <nickc@redhat.com>
Date: Mon, 21 Dec 2015 08:23:35 +0000 (+0000)
Subject: re PR other/66827 (left shifts of negative value warnings due to C++14 switch)
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=f8e663301f8b51d033b87d974b04fa431a18227a;p=gcc.git

re PR other/66827 (left shifts of negative value warnings due to C++14 switch)

	PR 66827
	* regex.c (EXTRACT_NUMBER): Cast sign byte to unsigned before left
	shifting.

From-SVN: r231873
---

diff --git a/libiberty/ChangeLog b/libiberty/ChangeLog
index 673123c8e05..0bda40e0682 100644
--- a/libiberty/ChangeLog
+++ b/libiberty/ChangeLog
@@ -1,3 +1,9 @@
+2015-12-21  Nick Clifton  <nickc@redhat.com>
+
+	PR 66827
+	* regex.c (EXTRACT_NUMBER): Cast sign byte to unsigned before left
+	shifting.
+
 2015-11-27  Pedro Alves  <palves@redhat.com>
 
 	PR other/61321
diff --git a/libiberty/regex.c b/libiberty/regex.c
index 16338cb206b..9ffc3f47f00 100644
--- a/libiberty/regex.c
+++ b/libiberty/regex.c
@@ -685,7 +685,7 @@ typedef enum
 #  define EXTRACT_NUMBER(destination, source)				\
   do {									\
     (destination) = *(source) & 0377;					\
-    (destination) += SIGN_EXTEND_CHAR (*((source) + 1)) << 8;		\
+    (destination) += ((unsigned) SIGN_EXTEND_CHAR (*((source) + 1))) << 8; \
   } while (0)
 # endif