[fpc-pascal] Adding a array of float in ressource and use it ?

[Lukasz Sokol]

Hi,

On 07/03/17 13:23, Michael Van Canneyt wrote:
> 
>> Huh? Of course you can do that rather similary in C as well.
> 
> Indeed. You can do exactly the same. You can do this:
> 
> {$mode objfpc}
> uses classes;
> 
> 
> Type
>   Float = Double;
>   TFloatArray = Array of Float;
> 
> Procedure TestRW(X : TFloatArray);
> 
> Var
>   F : TFileStream;
>   Y : TFloatArray;
>   I : Integer;
> 
> begin
>   // Write
>   F:=TFileStream.Create('float.dat',fmCreate);
>   try

so here is what I am seeing in Fre;D's code, that he managed to paste in one of the previous
messages :

// "FileBuffer.Data.Seek(0, soFromBeginning);"

      F.Seek(0, soFromBeginning);   /// this it would be in Michaels' code 

I don't think it matters if you newly create the stream... 
looks like something (probably) performed by the constructor already;

(just a stab in the dark here, unless we take the time to look into Fred's github ?)

-L.

>     F.WriteBuffer(X[0],Length(X)*SizeOf(Float));
>   finally
>     F.Free;
>   end;
>   // Read
>   F:=TFileStream.Create('float.dat',fmOpenRead);
>   try
>     SetLength(Y,F.Size div SizeOf(Float));
>     F.ReadBuffer(Y[0],F.Size);
>   finally
>     F.Free;
>   end;
>   // Check
>   If Length(Y)<>Length(X) then
>     Writeln('Wrong length')
>   else For I:=0 to Length(X)-1 do
>     if (X[i]<>Y[i]) then
>       Writeln('Wrong element at pos ',i,': ',X[i]<>Y[i]);
> end;
> 
> var
>   X : TFloatArray;
>   I : Integer;
> 
> begin
>   SetLength(X,10);
>   Writeln('Floats');
>   For I:=0 to Length(X)-1 do
>      X[i]:=10+(1/(1+I));
>   TestRW(X);
>   Writeln('integers');
>   For I:=0 to Length(X)-1 do
>      X[i]:=10+I;
>   TestRW(X);
> end.
> 
> Michael.