From 2d7cfef50c90547b934f4b9396d82adf375140a3 Mon Sep 17 00:00:00 2001
From: Cody Boone Ferguson <53008573+xexyl@users.noreply.github.com>
Date: Fri, 7 Apr 2023 10:57:11 -0700
Subject: [PATCH] Add crash warning to 1989/robison

With invalid digits the program will crash. This was never fixed (nor
should it be) but never noted either.
---
 1989/robison/Makefile  | 2 +-
 1989/robison/README.md | 2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/1989/robison/Makefile b/1989/robison/Makefile
index 24325e926..a170d2142 100644
--- a/1989/robison/Makefile
+++ b/1989/robison/Makefile
@@ -132,7 +132,7 @@ all: data ${TARGET}
 	supernova deep_magic magic charon pluto
 
 ${PROG}: ${PROG}.c
-	@echo "NOTE: This entry will likely dump core on invalid input."
+	@echo "NOTE: this entry will crash with numbers with non binary digits."
 	${CC} ${CFLAGS} $< -o $@ ${LIBS}
 
 # alternative executable
diff --git a/1989/robison/README.md b/1989/robison/README.md
index da6005a2b..d1d163192 100644
--- a/1989/robison/README.md
+++ b/1989/robison/README.md
@@ -37,6 +37,8 @@ Yusuke!
 
 	echo 100 / 100 | ./robison # <-- what happens here ?
 
+NOTE: this entry will crash with numbers with non binary digits.
+
 ## Judges' comments:
 
 Sites with punch card facilities will be happy to note that