[buddy] Fix some issues reported by LLVM/Clang's static analyser.

buddy/ChangeLog

@@ -1,3 +1,12 @@
+2009-09-07  Alexandre Duret-Lutz  <adl@lrde.epita.fr>
+
+	Fix some issues reported by LLVM/Clang's static analyser.
+
+	* src/bddop.c (bdd_operator_varresize): Do not write into
+	quantvarset if it could not be allocated.
+	* src/reorder.c (reorder_win3): Do not initialize THIS, its
+	initial value is never read.
+
 2009-08-28  Alexandre Duret-Lutz  <adl@lrde.epita.fr>
 
 	* configure.ac: Switch from Libtool 1.5.x to Libtool 2.x, and

buddy/src/bddop.c

@@ -244,8 +244,8 @@ void bdd_operator_varresize(void)
 
    if ((quantvarset=NEW(int,bddvarnum)) == NULL)
       bdd_error(BDD_MEMORY);
-
-   memset(quantvarset, 0, sizeof(int)*bddvarnum);
+   else
+     memset(quantvarset, 0, sizeof(int)*bddvarnum);
    quantvarsetID = 0;
 }
 

buddy/src/reorder.c

@@ -393,7 +393,7 @@ static BddTree *reorder_swapwin3(BddTree *this, BddTree **first)
 
 static BddTree *reorder_win3(BddTree *t)
 {
-   BddTree *this=t, *first=t;
+   BddTree *this, *first=t;
 
    if (t == NULL)
       return t;