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* numbers.c (SCM_COMPLEX_VALUE): Use GUILE_I instead of _Complex_I

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directly, and only if GUILE_I was defined by the configure step.
(scm_log, scm_log10, scm_exp, scm_sqrt): Use SCM_COMPLEX_VALUE
code only if SCM_COMPLEX_VALUE is defined.

* configure.in (--without-64-calls): Use AC_MSG_CHECKING and
AC_MSG_RESULT instead of just echo.
(GUILE_I): New programs to try using _Complex_I or 1.0fi for the
imaginary unit.
This commit is contained in:
Neil Jerram 2008-02-11 21:20:14 +00:00
parent 7f74cf9a67
commit 4b26c03ec7
5 changed files with 48 additions and 7 deletions
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13
libguile/numbers.c
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@ -162,11 +162,12 @@ xisnan (double x)
#endif
}
#if defined (GUILE_I)
/* For an SCM object Z which is a complex number (ie. satisfies
SCM_COMPLEXP), return its value as a C level "complex double". */
#define SCM_COMPLEX_VALUE(z) \
(SCM_COMPLEX_REAL (z) + _Complex_I * SCM_COMPLEX_IMAG (z))
(SCM_COMPLEX_REAL (z) + GUILE_I * SCM_COMPLEX_IMAG (z))
#endif
/* Convert a C "complex double" to an SCM value. */
#if HAVE_COMPLEX_DOUBLE
@ -6011,7 +6012,7 @@ SCM_DEFINE (scm_log, "log", 1, 0, 0,
{
if (SCM_COMPLEXP (z))
{
#if HAVE_COMPLEX_DOUBLE && HAVE_CLOG
#if HAVE_COMPLEX_DOUBLE && HAVE_CLOG && defined (SCM_COMPLEX_VALUE)
return scm_from_complex_double (clog (SCM_COMPLEX_VALUE (z)));
#else
double re = SCM_COMPLEX_REAL (z);
@ -6045,7 +6046,7 @@ SCM_DEFINE (scm_log10, "log10", 1, 0, 0,
/* Mingw has clog() but not clog10(). (Maybe it'd be worth using
clog() and a multiply by M_LOG10E, rather than the fallback
log10+hypot+atan2.) */
#if HAVE_COMPLEX_DOUBLE && HAVE_CLOG10
#if HAVE_COMPLEX_DOUBLE && HAVE_CLOG10 && defined (SCM_COMPLEX_VALUE)
return scm_from_complex_double (clog10 (SCM_COMPLEX_VALUE (z)));
#else
double re = SCM_COMPLEX_REAL (z);
@ -6077,7 +6078,7 @@ SCM_DEFINE (scm_exp, "exp", 1, 0, 0,
{
if (SCM_COMPLEXP (z))
{
#if HAVE_COMPLEX_DOUBLE && HAVE_CEXP
#if HAVE_COMPLEX_DOUBLE && HAVE_CEXP && defined (SCM_COMPLEX_VALUE)
return scm_from_complex_double (cexp (SCM_COMPLEX_VALUE (z)));
#else
return scm_c_make_polar (exp (SCM_COMPLEX_REAL (z)),
@ -6111,7 +6112,7 @@ SCM_DEFINE (scm_sqrt, "sqrt", 1, 0, 0,
{
if (SCM_COMPLEXP (x))
{
#if HAVE_COMPLEX_DOUBLE && HAVE_USABLE_CSQRT
#if HAVE_COMPLEX_DOUBLE && HAVE_USABLE_CSQRT && defined (SCM_COMPLEX_VALUE)
return scm_from_complex_double (csqrt (SCM_COMPLEX_VALUE (x)));
#else
double re = SCM_COMPLEX_REAL (x);