From 9502b4256d5c310fcac7355c71c3024851ad6751 Mon Sep 17 00:00:00 2001
From: Hans Bolinder <hasse@erlang.org>
Date: Mon, 18 Feb 2019 15:34:22 +0100
Subject: stdlib: Fix a bug in the Erlang Pretty Printer

Long atom names in combination with <c><<>></c> could cause a crash.
---
 lib/stdlib/src/erl_pp.erl | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'lib/stdlib/src')

diff --git a/lib/stdlib/src/erl_pp.erl b/lib/stdlib/src/erl_pp.erl
index dd302a2880..ada3ff5de3 100644
--- a/lib/stdlib/src/erl_pp.erl
+++ b/lib/stdlib/src/erl_pp.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1996-2018. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2019. All Rights Reserved.
 %%
 %% Licensed under the Apache License, Version 2.0 (the "License");
 %% you may not use this file except in compliance with the License.
@@ -697,6 +697,8 @@ fun_info(Extra) ->
 
 %% BITS:
 
+bit_grp([], _Opts) ->
+    leaf("<<>>");
 bit_grp(Fs, Opts) ->
     append([['<<'], [bit_elems(Fs, Opts)], ['>>']]).
 
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