fixed a small problem of operator precedence in "if (w1 ^ w1a != 0) continue;" by adding parentheses.

git-svn-id: https://www.grenoble.prabi.fr/svn/LECASofts/ecoPrimers/trunk@233 60f365c0-8329-0410-b2a4-ec073aeeaa1d

src/libecoprimer/pairs.c

@@ -327,8 +327,8 @@ static void buildPrimerPairsForOneSeq(uint32_t seqid,
 		    		   w2a = w2a & omask; //keep only strict_three_prime bases on the right (3') end
 		    		
 		    		   //now check that both words and primers of amplifia have same bases on 3' end
-		    		   if (w1 ^ w1a != 0) continue; 
-		    		   else if (w2 ^ w2a != 0) continue;
+		    		   if ((w1 ^ w1a) != 0) continue; 
+		    		   if ((w2 ^ w2a) != 0) continue;
 		    	   }