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Fix type-checking of SRFI-1 `partition'.

This commit is contained in:
Ludovic Courtès 2008-04-28 18:03:27 +02:00
parent a030cb4b16
commit 0fb11ae432
5 changed files with 31 additions and 5 deletions

View file

@ -1667,6 +1667,7 @@ SCM_DEFINE (scm_srfi1_partition, "partition", 2, 0, 0,
/* In this implementation, the output lists don't share memory with
list, because it's probably not worth the effort. */
scm_t_trampoline_1 call = scm_trampoline_1(pred);
SCM orig_list = list;
SCM kept = scm_cons(SCM_EOL, SCM_EOL);
SCM kept_tail = kept;
SCM dropped = scm_cons(SCM_EOL, SCM_EOL);
@ -1675,8 +1676,14 @@ SCM_DEFINE (scm_srfi1_partition, "partition", 2, 0, 0,
SCM_ASSERT(call, pred, 2, FUNC_NAME);
for (; !SCM_NULL_OR_NIL_P (list); list = SCM_CDR(list)) {
SCM elt = SCM_CAR(list);
SCM new_tail = scm_cons(SCM_CAR(list), SCM_EOL);
SCM elt, new_tail;
/* Make sure LIST is not a dotted list. */
SCM_ASSERT (scm_is_pair (list), orig_list, SCM_ARG2, FUNC_NAME);
elt = SCM_CAR (list);
new_tail = scm_cons (SCM_CAR (list), SCM_EOL);
if (scm_is_true (call (pred, elt))) {
SCM_SETCDR(kept_tail, new_tail);
kept_tail = new_tail;