Problem on running dap's example

Hi,

I had installed dap-2.1 and was trying to run one of
the examples provided in cygwin, but had encountered
the following errors after I typed daprun amd128.c:

Preprocessing…
dappp: amd128.c :7 : expected { , got

Thus, I went to adjust amd128.c line 7 by moving  { 
from line 8 to line 7 and obtain the following: 

infile("amd128.dat", " "){
    char treat[7], block[7];
    double y;
    input("treat block y");
    outset("amd128", "treat block y");
    skip(1);
    while (step())
      output();
    }

After running again, I received the messages
Preprocessing, Compiling, Executing…followed by an
error - (input) unknown variable: treat.

Isn’t treat a variable we have declared in the infile
statement body? May I know what has gone wrong? I have
tried running other examples and encountered the same
problem.

Hope that you can clear my doubt and thanks for your
time!

Yours sincerely,
Swee Lee.

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