Re: Guile 1.8.2 Compile Error [GAH]

[Kevin Brott]

On Wed, 2007-11-14 at 09:59 -0800, Kevin Brott wrote:

> No - it bombs out now, trying to compile numbers.c  with this error:
> 
> numbers.c: In function 'scm_exp':
> numbers.c:6081: error: '__I' undeclared (first use in this function)
> numbers.c:6081: error: (Each undeclared identifier is reported only once
> numbers.c:6081: error: for each function it appears in.)
> 
> And I'm trying to work out where that __I is hiding.
> 

Found where it's manifesting, now to figure out why ... from the
guile-1.8.3 directory, if I do:

  cpp -I. -DHAVE_CONFIG_H libguile/numbers.c -o foo.cpp

I find that this line in numbers.c

6081: return scm_from_complex_double (cexp (SCM_COMPLEX_VALUE (z)));

expands to this:

      return scm_from_complex_double (cexp (((((scm_t_complex *)
((((scm_t_bits) (0? (*(SCM*)0=((((SCM *)((scm_t_cell *) (((scm_t_bits)
(0? (*(SCM*)0=((((z))))): (((z)))))))) [((1))]))): (((SCM *)((scm_t_cell
*) (((scm_t_bits) (0? (*(SCM*)0=((((z))))): (((z))))))))
[((1))]))))))->real) + __I * (((scm_t_complex *) ((((scm_t_bits) (0?
(*(SCM*)0=((((SCM *)((scm_t_cell *) (((scm_t_bits) (0?
(*(SCM*)0=((((z))))): (((z)))))))) [((1))]))): (((SCM *)((scm_t_cell *)
(((scm_t_bits) (0? (*(SCM*)0=((((z))))): (((z))))))))
[((1))]))))))->imag))));

So hunting back to where SCM_COMPLEX_VALUE is defined in numbers.c, we
get
    168 #define SCM_COMPLEX_VALUE(z) \
    169   (SCM_COMPLEX_REAL (z) + _Complex_I * SCM_COMPLEX_IMAG (z))

So it looks like _Complex_I is rendering as __I - and that prpbably
isn't correct.

-- 
#include <stddisclaimer.h>
/* Kevin Brott <address@hidden> 
 * Unix Systems Engineer - SA Group - Provtech
 * Providence Health Systems, Tigard, OR
 */


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