Fix address sanitizer issue

NEWS.md

@@ -2,6 +2,7 @@
 
 - Fix for as.crf when loaded from file and adding more arguments than just the file
 - added txt_feature as a simple feature extraction to identify if a word is capitalised, an email, an url or a number
+- src/cqdb/src/lookup3.c, fix address sanitizer issue 
 
 # CHANGES IN crfsuite VERSION 0.1.1
 

src/cqdb/src/lookup3.c

@@ -312,27 +312,30 @@ uint32_t hashlittle( const void *key, size_t length, uint32_t initval)
      * still catch it and complain.  The masking trick does make the hash
      * noticably faster for short strings (like English words).
      */
-#ifndef VALGRIND
-
-    switch(length)
-    {
-    case 12: c+=k[2]; b+=k[1]; a+=k[0]; break;
-    case 11: c+=k[2]&0xffffff; b+=k[1]; a+=k[0]; break;
-    case 10: c+=k[2]&0xffff; b+=k[1]; a+=k[0]; break;
-    case 9 : c+=k[2]&0xff; b+=k[1]; a+=k[0]; break;
-    case 8 : b+=k[1]; a+=k[0]; break;
-    case 7 : b+=k[1]&0xffffff; a+=k[0]; break;
-    case 6 : b+=k[1]&0xffff; a+=k[0]; break;
-    case 5 : b+=k[1]&0xff; a+=k[0]; break;
-    case 4 : a+=k[0]; break;
-    case 3 : a+=k[0]&0xffffff; break;
-    case 2 : a+=k[0]&0xffff; break;
-    case 1 : a+=k[0]&0xff; break;
-    case 0 : return c;              /* zero length strings require no mixing */
-    }
-
-#else /* make valgrind happy */
-
+//#ifndef VALGRIND
+//
+//    switch(length)
+//    {
+//    case 12: c+=k[2]; b+=k[1]; a+=k[0]; break;
+//    case 11: c+=k[2]&0xffffff; b+=k[1]; a+=k[0]; break;
+//    case 10: c+=k[2]&0xffff; b+=k[1]; a+=k[0]; break;
+//    case 9 : c+=k[2]&0xff; b+=k[1]; a+=k[0]; break;
+//    case 8 : b+=k[1]; a+=k[0]; break;
+//    case 7 : b+=k[1]&0xffffff; a+=k[0]; break;
+//    case 6 : b+=k[1]&0xffff; a+=k[0]; break;
+//    case 5 : b+=k[1]&0xff; a+=k[0]; break;
+//    case 4 : a+=k[0]; break;
+//    case 3 : a+=k[0]&0xffffff; break;
+//    case 2 : a+=k[0]&0xffff; break;
+//    case 1 : a+=k[0]&0xff; break;
+//    case 0 : return c;              /* zero length strings require no mixing */
+//    }
+//
+//#else /* make valgrind happy */
+
+    // ADDED TO FIX R CMD CHECK ADDRESSSANITIZER ISSUE
+    const uint8_t* k8;
+
     k8 = (const uint8_t *)k;
     switch(length)
     {
@@ -351,7 +354,7 @@ uint32_t hashlittle( const void *key, size_t length, uint32_t initval)
     case 0 : return c;
     }
 
-#endif /* !valgrind */
+//#endif /* !valgrind */
 
   } else if (HASH_LITTLE_ENDIAN && ((u.i & 0x1) == 0)) {
     const uint16_t *k = (const uint16_t *)key;         /* read 16-bit chunks */