Re: Solaris does not have trunc()

[Ethan M. <merritt@u.washington.edu>]

On Wednesday 17 February 2010 17:14:49 Shigeharu TAKENO wrote:
> shige 02/18 2010
> ----------------
> 
> src/term.c of current version 
> 
>  $Id: term.c,v 1.197 2010/02/17 06:21:31 sfeam Exp $
> 
> includes the function trunc(), but Solaris 9 does not have it. 

I noticed the same problem when I tried to build on a machine
at the lab today.  Although trunc() is part of the C99 standard,
unfortunately too many machines are not yet using a C99 compliant compiler.

But trunc() and rint() are not at all the same.
It does not work to replace one by the other.  

I will re-write the code in do_arc() to use explicit tests rather
than calling an external function.

	Ethan


> So, we needs the following patch on Solaris:
> 
> ----- From here -----
> --- src/term.c.ORG	Thu Feb 18 10:01:04 2010
> +++ src/term.c	Thu Feb 18 09:57:17 2010
> @@ -106,6 +106,10 @@
>  # endif                         /* MSC */
>  #endif /* _Windows */
>  
> +#ifdef __sun
> +# #define trunc(x) rint(x)
> +#endif
> +
>  static int termcomp __PROTO((const generic * a, const generic * b));
>  
>  /* Externally visible variables */
> ----- To here -----
> 
> +========================================================+
>  Shigeharu TAKENO     NIigata Institute of Technology
>                        kashiwazaki,Niigata 945-1195 JAPAN
>  sh...@ie...   TEL(&FAX): +81-257-22-8161
> +========================================================+