From: Phrogz <phrogz@...>
Date: 2007-11-21T23:20:01+09:00
Subject: Re: read, write, seek method in a ring buffer class

On Nov 20, 8:13 pm, Martin Durai <mar...@angleritech.com> wrote:
> Iam new to this language, could u help me out to solve this problem
>
> class RingBuffer
>
>   # Instanciate a ring buffer of the given size.
>   # The buffer will contain at most +size+ elements
>
>   def initialize(size)
>
>     # initialize the max
>
>     @max = size
>
>     # initialize the buffer array
>
>     @buffer = Array.new(size)
>
>     # initialize the read position
>
>     @read_position = read_position
>
>     # initialize the write position
>
>     @write_position = write_position
>
>   end
>
>   #
>   # Method to clear the buffer
>   #
>
>   def clear
>
>     @buffer = []
>
>   end
>
>   #
>   # method call to read the contents in a buffer
>   #
>
>   def read(read_position)
>
>     # is read position is greater than the maximum
>
>     if @read_position > @max
>
>       # if so
>
>       raise "Illeagal Read Position, the value is greater than the
> maximum value of buffer"
>
>       # is read position is lesser than the minimm value
>
>       if  @read_position < -1
>
>         # if so
>
>         raise " Illeagal Read Position, the value is less than minimum"
>
>       end
>
>     end
>
>     # read the buffer value
>
>     str = @buffer[read_position].to_s
>
>     # return the string
>
>     return str
>
>   end
>
>   #
>   # method call to write contents in a buffer
>   #
>
>   def write(value)
>
>     # shift the buffer
>
>     @buffer.shift
>
>     # append the value at the end
>
>     @buffer << value
>
>     end
>
>   #
>   # method call to convert buffer array
>   #
>
>   def to_a
>
>     # return the buffer element
>
>     return @buffer.dup
>
>   end
>
>   #
>   # method call to convert to string
>   #
>
>   def to_s
>
>     # initialize the str
>
>     str = ""
>
>     # each value in the buffer is converted to string
>
>     @buffer.each { |entry|
>           str << entry.to_s << "\n"
>
>     }
>
>     # return the string elements
>
>     return str
>
>   end
>
>   #
>   # method call to seek position
>   #
>
>   def seek
>
>   end
>
> end
>
> --
> Posted viahttp://www.ruby-forum.com/.

It looks like you're off to a good start. What are your specific
problems?