From: Robert Klemme <shortcutter@...>
Date: 2006-10-14T06:30:17+09:00
Subject: Re: IO.readint ?

Tim Pease wrote:
> On 10/13/06, Robert Klemme <shortcutter@googlemail.com> wrote:
>> On 12.10.2006 18:10, Kalman Noel wrote:
>>
>> class IO
>>   def geti( endian = :little )
>>     str = read( [0].pack('N').length )
>>     str.reverse! if endian == :little
>>     str.unpack( 'N' )[0]
>>   end
>> end
>>
> 
> Ooooo ... clever!
> 
> class IO
>  SIZEOF_INT = [0].pack('N').length
> 
>  def geti( endian = :little )
>    str = read( SIZEOF_INT )
>    str.reverse! if endian == :little
>    str.unpack( 'N' )[0]
>  end
> end
> 
> 
> I'm too lazy to benchmark it today, but is reverse! faster than
> reverse on strings?

Yes, most likely.  No new object is created.

	robert