Recycle conses in unget-char and read-until-match.

* regex.c (ead_until_match): Use rcyc_pop instead of pop
to move the conses to the recycle list. We know these
are not shared with anything. Adding additional logic
to completely recycle the stack.

* socket.c (dgram_get_char): Use rcyc_pop to
get the character from the push-back list.

* stream.c (stdio_get_char): Likewise.

1 files changed, 1 insertions, 1 deletions

diff --git a/stream.c b/stream.c
index 774359f4..3acf430a 100644
--- a/stream.c
+++ b/stream.c
@@ -685,7 +685,7 @@ static val stdio_get_char(val stream)
   struct stdio_handle *h = coerce(struct stdio_handle *, stream->co.handle);
 
   if (h->unget_c)
-    return pop(&h->unget_c);
+    return rcyc_pop(&h->unget_c);
 
   if (h->f) {
     wint_t ch = utf8_decode(&h->ud, stdio_get_char_callback,