From 0f891689362064fd027701e27eeb2e1a8e903f97 Mon Sep 17 00:00:00 2001
From: Cody Boone Ferguson <53008573+xexyl@users.noreply.github.com>
Date: Fri, 31 Mar 2023 06:56:17 -0700
Subject: [PATCH] Fix zero arg segfault in 2020/burton

I did not fix the strange output when more than one arg is specified nor
do I think I should.

I did not update Dave's comment that it will segfault on zero args nor
do I think I should (instead I updated the To run section like I've done
with the many others I've fixed).
---
 2020/burton/README.md | 12 ++++++++----
 2020/burton/prog.c    |  2 +-
 2 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/2020/burton/README.md b/2020/burton/README.md
index d7800de98..391b014ad 100644
--- a/2020/burton/README.md
+++ b/2020/burton/README.md
@@ -1,8 +1,8 @@
 # Best one-liner
 
-Dave Burton
-<http://snox.net/ioccc>
-Twitter: @lv2jmp
+    Dave Burton
+    <http://snox.net/ioccc>
+    Twitter: @lv2jmp
 
 ## To build:
 
@@ -16,7 +16,11 @@ make
 ./prog arg ...
 ```
 
-NOTE: this entry will dump core if you do not specify an argument.
+[Cody Boone Ferguson](/winners.html#Cody_Boone_Ferguson) made this entry not
+segfault when no arg is specified though he notes that the author says it will
+segfault on zero args. He did NOT fix the strange results when more than one arg
+is specified. Thank you Cody for your assistance!
+
 
 ## Try:
 
diff --git a/2020/burton/prog.c b/2020/burton/prog.c
index 60be69261..67c915521 100644
--- a/2020/burton/prog.c
+++ b/2020/burton/prog.c
@@ -1 +1 @@
-int main(int b,char**i){long long n=B,a=I^n,r=(a/b&a)>>4,y=atoi(*++i),_=(((a^n/b)*(y>>T)|y>>S)&r)|(a^r);printf("%.8s\n",(char*)&_);}
+int main(int b,char**i){if(1[i]){long long n=B,a=I^n,r=(a/b&a)>>4,y=atoi(*++i),_=(((a^n/b)*(y>>T)|y>>S)&r)|(a^r);printf("%.8s\n",(char*)&_);}}