Question

I have been trying to figure out why the Analyzer in Xcode seems to like the this code, so maybe someone can see what is wrong. Gives me this message: “Function call argument is an uninitialized value”.

It has a problem with this line and complains about the “statement”:

if (sqlite3_exec(MysDB, delete_stmt, NULL, statement, NULL) == SQLITE_OK) {

Actual Code:

-(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex {
if (buttonIndex == 1) {
    sqlite3_stmt *statement;
    const char *dbpath = [databasePath UTF8String];

    if (sqlite3_open(dbpath, &MyDB) == SQLITE_OK)
    {
        NSString *deleteSQL = [NSString stringWithFormat:@"DELETE FROM DATATABLE WHERE ID = %d", recordID];

        const char *delete_stmt = [deleteSQL UTF8String];
        if (sqlite3_exec(MysDB, delete_stmt, NULL, statement, NULL) == SQLITE_OK) {

            NSLog(@"Deleted");            
        }else{
            NSLog(@"Not Deleted");
        }
        sqlite3_close(MyDB);
    }
}

More Code Here Removed on Purpose...
}

Answer 1

The 3rd parameter of sqlite3_exec is the callback function, which is currently NULL in your example. And the 4th parameter is the argument to this callback.

http://www.sqlite.org/c3ref/exec.html

So, I think it doesn’t like the fact that you’re giving an actual argument to a NULL callback function.