Re: bug in g77

[Mark D LEAIR <mark dot leair at st dot com>]

Thank you for your reply. We had a feeling that there was an option to 
disable this but could not track it down.

-Mark


Toon Moene wrote:
> Mark D LEAIR wrote:
>
> > Hi,
> >
> > It appears that g77 always converts a real function return value to 
> > double precision. The following program illustrates this:
> >
> >       REAL FUNCTION FOO()
> >       RFROMC = 50.0
> >       RETURN
> >       END
>
>
> Indeed.  See the discussion around the option -fno-f2c to force g77 to 
> give up f2c compatibility in this regard (because f2c - originally - 
> compiled to K&R defined C, it had to treat functions returning float as 
> functions returning double.  You can override this behaviour, though. 
> Note that you have to compile *the whole program* and all its associate 
> libraries with this option, if you choose to use it.
>
> URL: 
> http://gcc.gnu.org/onlinedocs/gcc-3.4.1/g77/Code-Gen-Options.html#Code%20Gen%20Options 
>
>
> Hope this helps,

--
Mark Leair - Software Engineer                   mark.leair@st.com
Advanced Compilers & Tools                       Ph: +1-503-682-2806
AST Portland Laboratory, STMicroelectronics      Fx: +1-503-682-2637
Wilsonville, OR 97070 USA