Thijs Janzen wrote:

> Hi chaps,
> 
> I'm trying to write a little script that can run several
> programs after eacht other.
> 
> currently I have this:
> 
> [code]require "ftools"
> maxAlpha = 1.0 * 1/10
>  name3 = "MaxAlpha_"+ maxAlpha.to_s
>  target = name3
> value = "0\n" + maxAlpha.to_s
> File.open('feed.txt', 'w') do |f2|
>   f2.puts(value)
> $end
> system("E:\\Ruby_things\\Mastermind.exe")
> [/code]
> 
> Now, the Mastermind.exe is supposed to create a config file, based on
> the input he reads from "feed.txt". When executed from outside ruby,
> it creates a perfect configfile. When, however, Mastermind.exe is
> called from within ruby, using the script as above, it all of a
> sudden is not able to create output based on "feed.txt". It is able
> to open it, but read in values are not stored anymore, and thus not
> written to the config file.
> 
> Are there any restrictions or such to running C++ based exe files from
> within ruby?

Are you sure that Mastermind.exe is looking in the correct
directory?  I believe that the current directory for the exe
will be the directory in which Ruby was invoked.


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