Can somebody help me to translate a short Delphi console app to C++ Builder?

[TurboMagic 102]

In order to test something, I'd need to have the Hash_Console Demo console application from

https://github.com/MHumm/DelphiEncryptionCompendium (DEC) translated to C++ Builder.

 

Why do I need this?

In DECOptions.inc there are some switches which would enable 32 bit asm optimized variants of

some hash algorithms. The previous developers left a comment there that those are commented out
due to some C++ Builder issue. Now if I could check whether this issue still persists and if yes, whether
I can selectively disable them via some define, I could improve the library's performance at least

for Delphi users and if the issue no longer persists maybe even for C++ Builder users.

[David Heffernan 2463]

What pay rate are you offering? 

[Remy Lebeau 1642]

A straight C++ translation of the Hash_Console demo would look something like this:

/******************************************************************************
  The DEC team (see file NOTICE.txt) licenses this file
  to you under the Apache License, Version 2.0 (the
  "License"); you may not use this file except in compliance
  with the License. A copy of this licence is found in the root directory of
  this project in the file LICENCE.txt or alternatively at

    http://www.apache.org/licenses/LICENSE-2.0

  Unless required by applicable law or agreed to in writing,
  software distributed under the License is distributed on an
  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  KIND, either express or implied.  See the License for the
  specific language governing permissions and limitations
  under the License.
******************************************************************************/

/// <summary>
///   Most simple demonstration of DEC hash routines
/// </summary>

#include <vcl.h>
#pragma hdrstop

#include <System.SysUtils.hpp>
#include <DECFormat.hpp>
#include <DECHash.hpp>

#include <iostream>
#include <limits>

int main()
{
	THash_RipeMD160* Hash = new THash_RipeMD160;
	try
    {
		try
        {
			// Calculate a hash value in accordance to the original author's test data
			// http://homes.esat.kuleuven.be/~bosselae/ripemd160.html
			RawByteString s = "message digest";

			std::cout << "RipeMD160 digest (hash value) of " << s.c_str() << " is \n" << Hash->CalcString(s, __classid(TFormat_HEX)).c_str() << std::endl;
			std::cin.ignore(std::numeric_limits<std::streamsize>::max(), '\n');

			THash_Whirlpool1* W = new THash_Whirlpool1;

			s = "The quick brown fox jumps over the lazy dog";

			std::cout << "RipeMD160 digest (hash value) of " << s.c_str() << " is \n" << W->CalcString(s, __classid(TFormat_HEX)).c_str() << std::endl;
			delete W;
			std::cin.ignore(std::numeric_limits<std::streamsize>::max(), '\n');
		}
  		catch(const Exception &E)
        {
			std::wcout << const_cast<Exception&>(E).ClassName().c_str() << _D(": ") << E.Message.c_str();
		}
	}
	__finally
	{
		delete Hash;
	}
}

 

[Fr0sT.Brutal 904]

10 hours ago, David Heffernan said:

What pay rate are you offering? 

Quite rude David, he's doing opensource

[TurboMagic 102]

Ok, thanks for this rough translation Remy!

Now I simply need to get some DECFormat.hpp and DECHash.hpp.

 

Is there a way to get them generated or do I need to craft/create them manually?

[David Heffernan 2463]

11 hours ago, Fr0sT.Brutal said:

Quite rude David, he's doing opensource

"I need to have XXX translated to YYY" seems a little abrupt to me. 

[TurboMagic 102]

Sorry, David, but I do not speak "C" much and as the DEC library I'm working on seems to be mostly C++ Builder compatible
I didn't want to ruin that compatibility just to have some speed gains on Delphi side.

 

The simple solution would have been to remove the uncommenting and don't care about C++ Builder.

 

[Remy Lebeau 1642]

1 hour ago, TurboMagic said:

Now I simply need to get some DECFormat.hpp and DECHash.hpp.

 

Is there a way to get them generated or do I need to craft/create them manually?

.hpp files are auto-generated by the Delphi compiler when run with the -JL  or -JPHNE switch.  See Creating C++ Files from DCC32

[TurboMagic 102]

Thanks! I'll try to find the required time in the next few days.

[TurboMagic 102]

I just tried. I got the .hpp files and copied those two referenced over into the directory of that project, but compilation gives a [ilink32 failure] Fatal: file 'SYSTEM.CLASSES.OBJ' cannot get opened.
I tried to find the file in my VM, but I failed.

[Remy Lebeau 1642]

On 7/30/2021 at 11:11 AM, TurboMagic said:

I just tried. I got the .hpp files and copied those two referenced over into the directory of that project, but compilation gives a [ilink32 failure] Fatal: file 'SYSTEM.CLASSES.OBJ' cannot get opened.
I tried to find the file in my VM, but I failed.

It is not enough to just use the .hpp files, you have to link to the RTL library as well.  You are not finding SYSTEM.CLASSES.OBJ because is not actually a standalone file that exists anywhere.  System.Classes is a unit that exists inside of the RTL.  So make sure you are linking against rtl.dcp, IIRC.  The easiest way to go is to just start with a newly created VCL-enabled console project and then add the translated C++ code into it as needed.