Additional work at eliminating silly compiler warnings. (CVS 6010)

FossilOrigin-Name: ea01d43788a75e39c7f03c22681d1a338d52cf0e

src/malloc.c

@@ -12,7 +12,7 @@
 **
 ** Memory allocation functions used throughout sqlite.
 **
-** $Id: malloc.c,v 1.50 2008/12/10 19:26:24 drh Exp $
+** $Id: malloc.c,v 1.51 2008/12/10 21:19:57 drh Exp $
 */
 #include "sqliteInt.h"
 #include <stdarg.h>
@@ -50,7 +50,7 @@ void sqlite3_soft_heap_limit(int n){
   }else{
     sqlite3MemoryAlarm(0, 0, 0);
   }
-  overage = sqlite3_memory_used() - n;
+  overage = (int)(sqlite3_memory_used() - (i64)n);
   if( overage>0 ){
     sqlite3_release_memory(overage);
   }
@@ -385,7 +385,7 @@ void sqlite3ScratchFree(void *p){
       }
     }else{
       int i;
-      i = (u8 *)p - (u8 *)sqlite3GlobalConfig.pScratch;
+      i = (int)((u8*)p - (u8*)sqlite3GlobalConfig.pScratch);
       i /= sqlite3GlobalConfig.szScratch;
       assert( i>=0 && i<sqlite3GlobalConfig.nScratch );
       sqlite3_mutex_enter(mem0.mutex);