From 3c2f6585e05392e479fdf0ba2920a90445d93c88 Mon Sep 17 00:00:00 2001
From: Holger Vogt <holger.vogt@uni-due.de>
Date: Sun, 13 Dec 2020 11:16:37 +0100
Subject: [PATCH] Add some comment.

---
 src/frontend/inpcom.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/frontend/inpcom.c b/src/frontend/inpcom.c
index 8093d1c6a..94ea1658b 100644
--- a/src/frontend/inpcom.c
+++ b/src/frontend/inpcom.c
@@ -715,7 +715,9 @@ struct card *inp_readall(FILE *fp, const char *dir_name,
             return NULL;
 
         /* don't remove unused model if we have an .if clause, because we
-           cannot yet decide here which model we finally will need */
+           cannot yet decide here which model we finally will need.
+           There is another trial using these functions in inpc,
+           when the netlist is expanded and flattened.*/
         if (!has_if) {
             comment_out_unused_subckt_models(working);
             inp_rem_unused_models(root, working);