Andrey Ulanov writes:
> Look at this:
>
> $ cat test.c
> #include <stdio.h>
>
> main()
> {
> double h = 0.2;
>
> if(1/h == 5.0)
> printf("1/h == 5.0\n");
>
> if(1/h < 5.0)
> printf("1/h < 5.0\n");
> return 0;
> }
> $ gcc test.c
$ gcc -O test.c
$ ./a.out
1/h == 5.0
without -O, gcc initializes h to 0.2000000000000000111
> $ ./a.out
> 1/h < 5.0
> $
>
> I also ran same a.out under FreeBSD. It says "1/h == 5.0".
> It seems there is difference somewhere in FPU
> initialization code. And I think it should be fixed.
>
> ps. cc to me
> --
> with best regards, Andrey Ulanov.
> drey@rt.mipt.ru
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This archive was generated by hypermail 2b29 : Tue Apr 23 2002 - 22:00:18 EST