internal definitions.
(list-tabulate, iota): check for bad arguments that otherwise
give weird output.
(filter): check for proper list, to avoid infinite recursion on
a circular list.
(process-long-option): Fix bug: Keep track of `optional' value-required
info and use this to determine whether or not the next element is to be
taken as the option arg.
accounting for the (char-set-union cs2...) in the spec. i.e.,
(char-set-diff+intersection a) -> copy-of-a, empty-set
and the following are equivalent:
(char-set-diff+intersection a (char-set #\a) (char-set #\b))
(char-set-diff+intersection a (char-set #\a #\b))
(scm_char_set_xor_x): disabled the side-effecting code, since it
gives inconsistent results to scm_char_set_xor for the case
(char-set-xor! a a a).
(scm_char_set_diff_plus_intersection_x): added cs2 argument, since
two arguments are compulsory in final spec. also similar changes
as for scm_char_set_diff_plus_intersection.
* srfi-14.h (scm_char_set_diff_plus_intersection_x): added cs2.
(scm_tc3_cons_gloc): Renamed to scm_tc3_struct. Changed all uses.
(scm_tcs_cons_gloc): Renamed to scm_tcs_struct. Changed all uses.
(SCM_ECONSP, SCM_NECONSP): Removed. Changed all uses to SCM_CONSP
or SCM_NCONSP, respectively.
* struct.c, struct.h, srcprop.c, procs.c, procprop.c, print.c,
objects.c. modules.c, goops.c, eval.c, debug.c: Changed all uses
of scm_tc3_cond_gloc and scm_tcs_cons_gloc. See above.
* print.c (scm_iprin1): Remove printing of glocs. Do not try to
tell glocs from structs.
* gc.c (scm_gc_mark, scm_gc_sweep): Remove handling of glocs.
* eval.c (scm_m_atbind): Make a list of variables, not glocs.
(scm_ceval, scm_deval): For SCM_IM_BIND, fiddle with variables
instead of with glocs.
(EVALCAR): Do not test for glocs.
(scm_lookupcar, scm_lookupcar1): Do not handle glocs in race
condition.
(scm_unmemocar): Do not handle glocs.
(scm_m_atfop): Memoize as a variable, not as a gloc.
(scm_eval_args, scm_deval_args): Do not handle glocs.
(scm_ceval, scm_deval): Likewise.
* eval.h (SCM_XEVALCAR): Do not test for glocs.
(SCM_GLOC_VAR, SCM_GLOC_VAL, SCM_GLOC_SET_VAL, SCM_GLOC_VAL_LOC):
Removed.
* debug.h, debug.c (scm_make_gloc, scm_gloc_p): Removed.
* dynwind.c (scm_swap_bindings): Likewise.
(scm_dowinds): Updated to recognize lists of variables instead of
lists of glocs.
* __scm.h (SCM_CAUTIOS, SCM_RECKLESS): Update comments.
