From 9744ffed96caf35d5f1b10f96d58a36e249fae9d Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 25 Jan 2017 06:05:51 +0000
Subject: .gdbinit: fix on empty strings [ci skip]

* .gdbinit (output_string): get rid of "Invalid number 0 of
  repetitions" error on empty strings.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57419 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 .gdbinit | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to '.gdbinit')

diff --git a/.gdbinit b/.gdbinit
index 06a616cf54..09013ab53c 100644
--- a/.gdbinit
+++ b/.gdbinit
@@ -446,9 +446,13 @@ define output_string
   set $len = ($flags & RUBY_FL_USER1) ? \
           ((struct RString*)($arg0))->as.heap.len : \
           (($flags & (RUBY_FL_USER2|RUBY_FL_USER3|RUBY_FL_USER4|RUBY_FL_USER5|RUBY_FL_USER6)) >> RUBY_FL_USHIFT+2)
-  output *(char *)(($flags & RUBY_FL_USER1) ? \
+  if $len > 0
+    output *(char *)(($flags & RUBY_FL_USER1) ? \
 	    ((struct RString*)($arg0))->as.heap.ptr : \
 	    ((struct RString*)($arg0))->as.ary) @ $len
+  else
+    output ""
+  end
 end
 
 define rp_string
-- 
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