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author | Ludovic Courtès <ludo@gnu.org> | 2010-09-20 00:00:44 +0200 |
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committer | Ludovic Courtès <ludo@gnu.org> | 2010-09-20 00:01:23 +0200 |
commit | 194865d2f7df43aec742c7cdd658050bb4caeb94 (patch) | |
tree | 8ac2441807c29d698fd050dc234fb7c342bd0e1f /libguile/srfi-1.c | |
parent | cd99e21cd469bb3abaa09055d30f0d5e98ab6f1c (diff) | |
download | guile-194865d2f7df43aec742c7cdd658050bb4caeb94.tar.gz |
SRFI-1: Rewrite `alist-copy' in Scheme.
This partially reverts commit b1fff4e793619b20342cba0015b9367680d3a0bd
(Sat Apr 2 2005).
* libguile/srfi-1.c (scm_srfi1_alist_copy): Remove.
* libguile/srfi-1.h (scm_srfi1_alist_copy): Remove declaration.
* module/srfi/srfi-1.scm (alist-copy): New procedure.
Diffstat (limited to 'libguile/srfi-1.c')
-rw-r--r-- | libguile/srfi-1.c | 35 |
1 files changed, 0 insertions, 35 deletions
diff --git a/libguile/srfi-1.c b/libguile/srfi-1.c index 6eace5f31..2fb677a7a 100644 --- a/libguile/srfi-1.c +++ b/libguile/srfi-1.c @@ -104,41 +104,6 @@ list_copy_part (SCM lst, int count, SCM *dst) #undef FUNC_NAME -SCM_DEFINE (scm_srfi1_alist_copy, "alist-copy", 1, 0, 0, - (SCM alist), - "Return a copy of @var{alist}, copying both the pairs comprising\n" - "the list and those making the associations.") -#define FUNC_NAME s_scm_srfi1_alist_copy -{ - SCM ret, *p, elem, c; - - /* ret is the list to return. p is where to append to it, initially &ret - then SCM_CDRLOC of the last pair. */ - ret = SCM_EOL; - p = &ret; - - for ( ; scm_is_pair (alist); alist = SCM_CDR (alist)) - { - elem = SCM_CAR (alist); - - /* each element of alist must be a pair */ - SCM_ASSERT_TYPE (scm_is_pair (elem), alist, SCM_ARG1, FUNC_NAME, - "association list"); - - c = scm_cons (scm_cons (SCM_CAR (elem), SCM_CDR (elem)), SCM_EOL); - *p = c; - p = SCM_CDRLOC (c); - } - - /* alist must be a proper list */ - SCM_ASSERT_TYPE (SCM_NULL_OR_NIL_P (alist), alist, SCM_ARG1, FUNC_NAME, - "association list"); - return ret; -} -#undef FUNC_NAME - - - SCM_DEFINE (scm_srfi1_append_reverse, "append-reverse", 2, 0, 0, (SCM revhead, SCM tail), "Reverse @var{rev-head}, append @var{tail} to it, and return the\n" |