From: Jim Meyering <meyering@redhat.com>
Date: Sun, 22 Nov 2009 08:01:07 +0000 (+0100)
Subject: diffseq: avoid spurious gcc warnings
X-Git-Tag: v0.1~5153
X-Git-Url: http://erislabs.net/gitweb/?a=commitdiff_plain;h=32be9f34696c86446768d8728667ee0564832d81;p=gnulib.git

diffseq: avoid spurious gcc warnings

* lib/diffseq.h (IF_LINT2): Define.
(compareseq): Use it to initialize two members of "part".
This avoids two used-uninitialized warnings.
---

diff --git a/ChangeLog b/ChangeLog
index 04b2a6b7f..9f8d4efbe 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2009-11-22  Jim Meyering  <meyering@redhat.com>
+
+	diffseq: avoid spurious gcc warnings
+	* lib/diffseq.h (IF_LINT2): Define.
+	(compareseq): Use it to initialize two members of "part".
+	This avoids two used-uninitialized warnings.
+
 2009-11-21  Jim Meyering  <meyering@redhat.com>
 
 	c-stack: avoid "ignoring return value of `write'" warning
diff --git a/lib/diffseq.h b/lib/diffseq.h
index 0c1723f43..9c7baa6f9 100644
--- a/lib/diffseq.h
+++ b/lib/diffseq.h
@@ -77,6 +77,15 @@
 # endif
 #endif
 
+/* As above, but when Code must contain one comma. */
+#ifndef IF_LINT2
+# ifdef lint
+#  define IF_LINT2(Code1, Code2) Code1, Code2
+# else
+#  define IF_LINT2(Code1, Code2) /* empty */
+# endif
+#endif
+
 /*
  * Context of comparison operation.
  */
@@ -464,7 +473,7 @@ compareseq (OFFSET xoff, OFFSET xlim, OFFSET yoff, OFFSET ylim,
       }
   else
     {
-      struct partition part;
+      struct partition part IF_LINT2 (= { .xmid = 0, .ymid = 0 });
 
       /* Find a point of correspondence in the middle of the vectors.  */
       diag (xoff, xlim, yoff, ylim, find_minimal, &part, ctxt);