From: vannuys@...
Date: 2008-04-25T03:00:05+09:00
Subject: Function appends same value to string based on number of function 	calls

Hi Guys,

Is this default ruby behaviour or is this a bug? Based on the number
of call to Testappend::get_some_value, the string "-New Value" is
appended x number of times. If you first assign value = '' instead of
value = @text, the behaviour is different and the "-New Value" string
is appended only once.

version of ruby: ruby 1.8.6 (2007-03-13 patchlevel 0) [x86_64-linux]

Thanks.

Philippe

-----------------------------------------------------

module ATest

  def ATest.main

    t = TestAppend.new
    puts t.get_some_value ==> Start of string-New Value
    puts t.get_some_value ==> Start of string-New Value-New Value
    puts t.get_some_value ==> Start of string-New Value-New Value-New
Value

  end

  class TestAppend
    attr_accessor :text

    def initialize(attributes = {})
      @text = "Start of string"
    end

    def get_some_value
      value = @text
      value << '-New Value'
      return value
    end

  end

end

ATest::main