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* print.c (scm_iprin1): Handle fractions.

Browse source 
* objects.h (scm_class_fraction): New.
* objects.c (scm_class_fraction): New.
(scm_class_of): Handle fractions.

* hash.c (scm_hasher): Handle fractions.

* numbers.c: New code for handling fraction all over the place.
(scm_odd_p, scm_even_p): Handle inexact integers.
(scm_rational_p): New function, same as scm_real_p.
(scm_round_number, scm_truncate_number, scm_ceiling, scm_floor):
New exact functions that replace the inexact 'dsubr'
implementations.
(scm_numerator, scm_denominator): New.

* numbers.h (SCM_NUMP): Recognize fractions.
(SCM_FRACTIONP, SCM_SLOPPY_FRACTIONP, SCM_FRACTION_NUMERATOR,
SCM_FRACTION_DENOMINATOR, SCM_FRACTION_SET_NUMERATOR,
SCM_FRACTION_SET_DENOMINATOR, SCM_FRACTION_REDUCED_BIT,
SCM_FRACTION_REDUCED_SET, SCM_FRACTION_REDUCED_CLEAR,
SCM_FRACTION_REDUCED): New.
(scm_floor, scm_ceiling, scm_truncate_number, scm_round_number):
New prototypes.
(scm_make_ratio, scm_rationalize, scm_numerator, scm_denominator,
scm_rational_p): New prototypes.
(scm_i_dbl2num, scm_i_fraction2double, scm_i_fraction_equalp,
scm_i_print_fraction): New prototypes.

* goops.c (create_standard_classes): Create "<fraction>" class.

* gc-mark.c (scm_gc_mark_dependencies): Handle fractions.

* gc-card.c (scm_i_sweep_card): Include scm_tc16_fraction as a
case in the switch, but do nothing for now.

* eval.c (SCM_CEVAL, SCM_APPLY, call_dsubr_1): Convert fractions
to doubles when calling 'dsubr' functions.

* eq.c (scm_eqv_p, scm_equal_p): Handle fractions.
This commit is contained in:
Marius Vollmer 2003-11-18 19:59:53 +00:00
parent 9dd9857f77
commit f92e85f735
11 changed files with 993 additions and 90 deletions
Download patch file Download diff file Expand all files Collapse all files

4
libguile/objects.c
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@ -48,7 +48,7 @@ SCM scm_class_boolean, scm_class_char, scm_class_pair;
SCM scm_class_procedure, scm_class_string, scm_class_symbol;
SCM scm_class_procedure_with_setter, scm_class_primitive_generic;
SCM scm_class_vector, scm_class_null;
SCM scm_class_integer, scm_class_real, scm_class_complex;
SCM scm_class_integer, scm_class_real, scm_class_complex, scm_class_fraction;
SCM scm_class_unknown;
SCM *scm_port_class = 0;
@ -110,6 +110,8 @@ SCM_DEFINE (scm_class_of, "class-of", 1, 0, 0,
return scm_class_real;
case scm_tc16_complex:
return scm_class_complex;
case scm_tc16_fraction:
return scm_class_fraction;
}
case scm_tc7_asubr:
case scm_tc7_subr_0: