From: konstantin.mailinglists@...
Date: 2008-05-19T07:35:02+09:00
Subject: Re: Array.sort with bignum fails?

On 18 Mai, 23:56, Rg Rg <r.bas...@gmail.com> wrote:
> Sebastian Hungerecker wrote:
> > Rg Rg wrote:
> >> @f.each do |linea|
> >>       cod, desc = linea.chomp.split(/,/)
> >>       @array1[i] = [ cod.strip.to_i ]
> >>       i = i+1
> >> end
> >> @asort1 = @array1.sort
>
> > An equivalent piece of code that does the same:
> > @array1 = @f.map do |linea|
> >   [ linea.to_i ]
> > end
> > @asort1 = @array1.sort
>
> > String#to_i ignores whitespace at the beginning (so you don't need
> > strip) and
> > will stop at the first non digit (so you don't have to remove what comes
> > after the comma - it will just be ignored).
>
> Ok
>
> > Though I wonder what the purpose of the @array1 variable is and whether
> > it is
> > intended that @array1 as well as @asort1 only contain one-element
> > arrays.
> > In case @array1 has no purpose (other than holding the values to be
> > sorted
> > until they are sorted) and the one-element arrays are not wanted, this
> > solution would work:
> > @asort1 = @f.map {|line| line.to_i}.sort
>
> I have arrays into @array2
>
> @array2[0] = [ 25977, "string1", "string2" ]
> @array2[1] = [ 36000, "string3", "string4" ]
> @array2[ .....
>
> My objective is to sort @array2 by numeric code and make a binary
> search.
> Sort it's ok, and for binary search I use gems --> "bsearch".
> "bsearch" with simple array it's ok, but array into array dont't work.
>
> This is because I make @array1 with one element.
> Although surely there is some other better form.
>
>
>
> > HTH,
> > Sebastian
>
> --
> Posted viahttp://www.ruby-forum.com/.

there is no "bsearch" gem, at least not in the default repos.
actually, bsearch seems somewhat outdated (website last modified
2001-12-23).