From: Anders Borch <spam@...>
Date: 2003-06-30T06:12:38+09:00
Subject: Re: Concatenating Hash's

Simon Strandgaard wrote:
> On Wed, 25 Jun 2003 01:32:27 +0900, David Landrith wrote:
> 
> 
>>What is the fastest way to concatenate two hash tables?
> 
>  
> 
> Have you tried Hash#update  ?
> 
> 
> But you ask about the fastest way... hmm.
> 
> 
> 
>>expand -t2 b.rb
> 
> class String
>   def String.rand(size=15)
>     s = String.new
>     size.times do |i|
>       s << (Kernel.rand(93)+33)   # ascii range
>     end
>     s
>   end
> end
> 
> class Hash
>   def Hash.rand(elements, width)
>     h = Hash.new
>     elements.times do
>       key = String.rand(width)
>       h[key] = Kernel.rand(899)+100
>     end
>     h
>   end
> end
> 
> h1 = Hash.rand(100, 5)
> h2 = Hash.rand(100, 5)
> puts "h1=#{h1.size}  h2=#{h2.size}"
> h1.update(h2)
> puts "h1=#{h1.size}  h2=#{h2.size}"
> 
> 
>>ruby b.rb
> 
> h1=100  h2=100
> h1=200  h2=100
> 
> 
> 
> Sorry no profiling.. maybe someone else can add it ?

require 'profile'

?

> --
> Simon Strandgaard
> 


-- 
dc -e 
4dd*od3*dddn1-89danrn10-dan3+ann6*dan*2*an13dn1+dn2-dn3+5*ddan2/9+an13nap