ftpclient.h conflicting declaration with windef.h

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Hello,

I downloaded this magnificent class from this web, but when I'm going to compile the project I get a compilation error saying:

Definements.h:42:25: error: conflicting declaration ‘typedef unsigned int DWORD'
windef.h:117:27: error: ‘DWORD’ has a previous declaration as ‘typedef long unsigned int DWORD’
Definements.h:45:25: error: conflicting declaration ‘typedef unsigned int ULONG’
windef.h:25:27: error: ‘ULONG’ has a previous declaration as ‘typedef long unsigned int ULONG’

These are my includes:

C#

#include <string>
#include <windows.h>
#include <FtpClient.h>
#include <sstream>
#include <fstream>
#include <iostream>
#include <stdio.h>
#include <cstdlib>

I'm not sure what can I do. Any solution is welcome.

Thank you very much!

Posted 19-Oct-13 0:15am

Member 10345853

Updated 19-Oct-13 2:39am

André Kraak

v3

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Mike Meinz · Answer 1 · 2013-10-19T02:31:00

Solution 1

Edit the .h file where the duplicate error occurs.

Wrap the duplicate declaration(s) with #ifndef and #endif.

Example

C++

#ifndef 
typedef unsigned int DWORD
#endif

Posted 19-Oct-13 2:31am

Mike Meinz

Updated 19-Oct-13 2:33am

v2

CPallini · Answer 2 · 2013-10-19T03:49:00

Solution 2

According to this table Data Type Ranges[^], the two definitions are compatible, hence you may safely follow Mike Meinz's advice and keep just one of them.

Posted 19-Oct-13 3:49am

CPallini