Hi all,

I recently developed a program using lazarus and observed that the same executable for windows, performs completely faulty computations in a specific computer to which, unfortunately, I do not have much access, since it is the laptop of my supervisor. The aforementioned machine runs windows xp, yet in other windows xp and windows 2000 versions I've tried, the program worked fine, also under wine. The project compiled for linux and mac behaved correctly.

The program only performs various calculations according to a given input specified by the gui and plots several charts. No input files, no output files and no environment variables are used.

I would appreciate any ideas of why something like this could possibly occur.

Thanks in advance for any help,

Manos

First thing that comes to mind is different locale setting, i.e. decimal separator etc. E.g. assuming the gui inputs are some floating point values entered in edit fields and later converted to float with StrToFloat, the conversion will fail, if the edit contains "1.23" but the systems decimal separator is set to "," (like e.g. on a german system) and thus expects "1,23".

regards
Burkhard

Please read: http://www.catb.org/~esr/faqs/smart-questions.html

For example, it is unclear, what faulty calculation means.

Vincent

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In that case can help to set

  DecimalSeparator:=',';
  ThousandSeparator:='.';

or viceversa
at main form create event
Regards
Salvatore

Wow, it was indeed related to the separators. The actual problem was that for some reason in his system the decimal separator was the same as the thousand separator... Setting DecimalSeparator and ThousandSeparator solved it.

Thanks very much for all the help,

Best regards,

Manos