Import SQLite 3.10.2.

third_party/sqlite/src/ext/misc/closure.c

 /*
 ** 2013-04-16
 **
 ** 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.
 **
@@ skipping 468 matching lines @@
 **
 ** If it is, return a pointer to the first character of VALUE.
 ** If not, return NULL.  Spaces around the = are ignored.
 */
 static const char *closureValueOfKey(const char *zKey, const char *zStr){
   int nKey = (int)strlen(zKey);
   int nStr = (int)strlen(zStr);
   int i;
   if( nStr<nKey+1 ) return 0;
   if( memcmp(zStr, zKey, nKey)!=0 ) return 0;
-  for(i=nKey; isspace(zStr[i]); i++){}
+  for(i=nKey; isspace((unsigned char)zStr[i]); i++){}
   if( zStr[i]!='=' ) return 0;
   i++;
-  while( isspace(zStr[i]) ){ i++; }
+  while( isspace((unsigned char)zStr[i]) ){ i++; }
   return zStr+i;
 }
 
 /*
 ** xConnect/xCreate method for the closure module. Arguments are:
 **
 **   argv[0]    -> module name  ("transitive_closure")
 **   argv[1]    -> database name
 **   argv[2]    -> table name
 **   argv[3...] -> arguments
@@ skipping 446 matching lines @@
   const sqlite3_api_routines *pApi
 ){
   int rc = SQLITE_OK;
   SQLITE_EXTENSION_INIT2(pApi);
   (void)pzErrMsg;
 #ifndef SQLITE_OMIT_VIRTUALTABLE
   rc = sqlite3_create_module(db, "transitive_closure", &closureModule, 0);
 #endif /* SQLITE_OMIT_VIRTUALTABLE */
   return rc;
 }