lib: get rid of internal rewindable iter nonsense.

Iterator rewinding is only used by the three functions isec,
isecp and diff, which can easily just re-initialize the
iterator.

* lib.c (seq_iter_rewind): Static function removed.
(seq_iter_init_with_info): Remove support_rewind argument, and
adjust all code referencing it on the assumption that it's zero.
(seq_iter_init_with_rewind): Static function removed.
(seq_iter_init, iter_begin, iter_reset, nullify, find, rfind):
Drop last argument from seq_iter_init_with_info.
(diff, isec, iescp): Use seq_iter_init rather than
seq_iter_init_with_rewind. Instead of seq_iter_rewind, just
reinitialize the iterator.

* lib.h (seq_iter_init_with_info): Declaration updated.

* eval.c (tprint): Drop last argument from seq_iter_init_with_info.

1 files changed, 1 insertions, 1 deletions

diff --git a/eval.c b/eval.c
index b5eb32dc..066e1c1c 100644
--- a/eval.c
+++ b/eval.c
@@ -6982,7 +6982,7 @@ val tprint(val obj, val out)
     seq_iter_t iter;
     val elem;
 
-    seq_iter_init_with_info(self, &iter, si, 0);
+    seq_iter_init_with_info(self, &iter, si);
 
     while (seq_get(&iter, &elem))
       tprint(elem, out);