[fpc-pascal] put data to stdout (fpc vs. gcc)

[Henry Vermaak]

On 13/06/07, fpc at xgelb.de <fpc at xgelb.de> wrote:
> Hi
>
> I wrote two programs one in C and one in Freepascal.
>
> The program read a variable of a library  and write it to stdout. I will put it into a file: ("#: ./dataprog > file.dat").
> I use "printf" in the C and "writeln" in  Freepascal.
>
> The problem: The fpc-based program is explicit slower than the c-based program.
> My questions:  Why is it so? Is it possible to avoid the problem?
>
>
> --------------
> C source:
>
> for (i=0;i<n;i++) {
>   out1=(single) libout1[i];
>   out2=(single) libout2[i];
>   count+=1;
>   printf("%20.0f%15.5f%15.5f\n",count,out1,out2);}
>
> --------------
> fpc source:
>
> for i:=0 to n do
> begin
>   out1:=single(libout1[i]);
>   out2:=single(libout2[i]);
>   inc(count);
>   writeln(stdout, count:20, out1:15:5, out2:15:5);
> end;
>
> --------------

interesting...  which version of fpc are you using?  how big does n
go?  you can use the time util to give us some figures.

henry