[ruby-core:77087] [Ruby trunk Bug#12710] "a string X".index("a string") Fails with Ruby 2.2.3p173

Issue #12710 has been reported by Martin Vahi.

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Bug #12710: "a string X".index("a string") Fails with Ruby 2.2.3p173
https://bugs.ruby-lang.org/issues/12710

* Author: Martin Vahi
* Status: Open
* Priority: Normal
* Assignee: 
* ruby -v: ruby 2.2.3p173 (2015-08-18 revision 51636) [x86_64-linux]
* Backport: 2.1: UNKNOWN, 2.2: UNKNOWN, 2.3: UNKNOWN
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The test case:

~~~
#!/usr/bin/env ruby

s_0=`cd ..;pwd`.to_s
s_1=`cd . ;pwd`.to_s
x_0=s_1.index(s_0)
puts("s_0=="+s_0)
puts("s_1=="+s_1)
puts("x_0=="+x_0.to_s)
puts("x_0.class=="+x_0.class.to_s)

# The console output:
#
=begin
s_0==/home/ts2/tmp/xx10/aa AA
s_1==/home/ts2/tmp/xx10/aa AA/bb BB
x_0==
x_0.class==NilClass
=end
#
# The "ruby -v" gives:
=begin
ruby 2.2.3p173 (2015-08-18 revision 51636) [x86_64-linux]
=end

~~~

---Files--------------------------------
rr.rb (402 Bytes)


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