Import SQLite 3.8.7.4.

third_party/sqlite/src/ext/fts3/fts3_hash.c

 /*
 ** 2001 September 22
 **
 ** The author disclaims copyright to this source code.  In place of
 ** a legal notice, here is a blessing:
 **
 **    May you do good and not evil.
 **    May you find forgiveness for yourself and forgive others.
 **    May you share freely, never taking more than you give.
 **
 *************************************************************************
 ** This is the implementation of generic hash-tables used in SQLite.
 ** We've modified it slightly to serve as a standalone hash table
 ** implementation for the full-text indexing module.
 */
 
 /*
 ** The code in this file is only compiled if:
 **
 **     * The FTS3 module is being built as an extension
 **       (in which case SQLITE_CORE is not defined), or
 **
 **     * The FTS3 module is being built into the core of
 **       SQLite (in which case SQLITE_ENABLE_FTS3 is defined).
 */
+#include "fts3Int.h"
 #if !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3)
 
 #include <assert.h>
 #include <stdlib.h>
 #include <string.h>
 
-#include "sqlite3.h"
 #include "fts3_hash.h"
 
 /*
 ** Malloc and Free functions
 */
 static void *fts3HashMalloc(int n){
   void *p = sqlite3_malloc(n);
   if( p ){
     memset(p, 0, n);
   }
@@ skipping 46 matching lines @@
     elem = next_elem;
   }
   pH->count = 0;
 }
 
 /*
 ** Hash and comparison functions when the mode is FTS3_HASH_STRING
 */
 static int fts3StrHash(const void *pKey, int nKey){
   const char *z = (const char *)pKey;
-  int h = 0;
+  unsigned h = 0;
   if( nKey<=0 ) nKey = (int) strlen(z);
   while( nKey > 0  ){
     h = (h<<3) ^ h ^ *z++;
     nKey--;
   }
-  return h & 0x7fffffff;
+  return (int)(h & 0x7fffffff);
 }
 static int fts3StrCompare(const void *pKey1, int n1, const void *pKey2, int n2){
   if( n1!=n2 ) return 1;
   return strncmp((const char*)pKey1,(const char*)pKey2,n1);
 }
 
 /*
 ** Hash and comparison functions when the mode is FTS3_HASH_BINARY
 */
 static int fts3BinHash(const void *pKey, int nKey){
@@ skipping 258 matching lines @@
   pH->count++;
   assert( pH->htsize>0 );
   assert( (pH->htsize & (pH->htsize-1))==0 );
   h = hraw & (pH->htsize-1);
   fts3HashInsertElement(pH, &pH->ht[h], new_elem);
   new_elem->data = data;
   return 0;
 }
 
 #endif /* !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3) */