Re: Will Ada-95 Programs Written in MS Windows Run in MacOS and Linux Without Some Tweaking.

[Austin Obyrne <austin.obyrne@hotmail.com>]

On Saturday, December 7, 2013 5:18:06 PM UTC, Simon Wright wrote:
> Austin Obyrne <austin.obyrne@hotmail.com> writes: > From what you have told me I think I should leave the dissemination of > the finished ciphers (currently to hand in Ada-95 only but required in > all the possible future versions of Ada) to experienced people who are > au fait with all the nuances of compilers that are available to day. The compilers I've tried with this are Ada2005 natively, and your programs also work with the -gnat12 (Ada 2012) switch. You might have tripped over new reserved words, but didn't, and since you haven't used access or tagged types or tasking I think you'd be pretty safe to upgrade your compiler. A couple of points: (a) when I encrypted Now is the time for all good men to come to the aid of the Party. ~ it decrypted as Now is the time for all good mento come to the aid of the Party.~ Is that meant to happen, or is there a problem with Windows line terminators (CR/LF) vs Unix (LF)? (b) when I decrypted Email_CipherTextFile_X.dat I got Execution terminated by unhandled exception Exception name: ADA.IO_EXCEPTIONS.DATA_ERROR and the exception was raised at line 683 of general_decryption_program_mark_2.adb.    

Hi Simon,

The second line down below is line 683

FOR I IN 1 .. 3 LOOP
      *=> Ada.Integer_Text_IO.Get(File => InData, Item => W(I));
      --Ada.Integer_Text_IO.Put(Item => W(I), Width => 8);
END LOOP;
 This appears to be ok to me ?

You are working from a very old edition of this program

Could I ask you to start again and download "SureCrypt Cipher" from 

http://www.adacryptpages.com
 
Sorry for the inconvenience - you are going great guns - the line numbers are difficult for me to trace today in the older program - Note - There is only one of each program in this more recent download.

I think there is always going to be some small errors - ideally I should liaise very closely with anybody such as yourself in any exercises like this.

Can you please spell out exactly which program you are referring to also because I have sometimes renamed them differently over the years in different uploads.

Ada-wise all these programs are the same -just extra refinements have been added now and then.

Thanks for what you are doing.

Austin