Re: [Dev-C++] loop optimization

[<or...@vp...>]

David McKen wrote:
> Ok here is a test I tried on a OLD comp I have lying
> around.
> 
> System specifications:
> 25Mhz 486 (no math co-processor)
> 4Mb Ram
> Compiled using the Pacific C compiler (djgpp runs WAY too
> slow) using full
> optimization.
> 
> Program:
> #include <stdio.h>
> #include <time.h>
> 
> long getint(void);
> 
> int main()
> {
>   time_t begin,end;
>   long i, get_int;
> 
>   begin = time(NULL);
>   for(i = 0; i < getint(); ++i);
>   end = time(NULL);
>   printf("Function call time taken = %i\n", end - begin);
> 
>   get_int = getint();
>   begin = time(NULL);
>   for(i = 0; i < get_int; ++i);
>   end = time(NULL);
>   printf("Varible buffer time taken = %i\n", end - begin);
> 
>   return 0;
> }
> 
> long getint(void)
> {
>   return 50000000;
> }
> 
> Output:
> Function call time taken = 40
> Varible buffer time taken = 16
> 
> Hope this helps.

Thank you very much. Actually, I was also doing some benchmarks, and got 
the same result as you. However, that getint() function is not that 
simple :) It does something more complicated.

Anyway, thanks for it.

--
Greetings,
   Balázs