[METHODS] Var types as parameters

ruby-talk
1

Hi!

I want to pass an array as a parameter to a method. But the values of it
inside the method are always Nil.

Can this be done?

···

--
Posted via http://www.ruby-forum.com/.

2

Could you show us the code which is doing this?

Farrel

···

On 15/11/06, Flaab Mrlinux <flaab_mrlinux@hotmail.com> wrote:

Hi!

I want to pass an array as a parameter to a method. But the values of it
inside the method are always Nil.

Can this be done?

--
Posted via http://www.ruby-forum.com/\.

3

Farrel Lifson wrote:

Posted via http://www.ruby-forum.com/\.

Could you show us the code which is doing this?

Farrel

Yes. Here it is... The objetive of the program is the following:

- The user inserts a string of 15 signs.
- The program loads a .txt file with a bunch of strings of 15 signs
- The program compares each string of the file with the one the user
wrote, and returns the number of signs matching between ALL the strings
in the file with the one the user wrote, but only beggining at a minimum
amount of 10.

Here it goes

···

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

####################################
#
# CLASES
#
####################################

# Definimos combinacion, subclase de array
class Combinacion < Array

  @@quince = 0
  @@catorce = 0
  @@trece = 0
  @@doce = 0
  @@once = 0
  @@diez = 0

  def initialize(num)
         @combi = Array.new(num)
     end

     # Devolver valores
     def dame_resultados
       print("De Quince: ", @@quince,"\n")
       print("De Catorce: ", @@catorce,"\n")
       print("De Trece: ", @@trece,"\n")
       print("De Doce: ", @@doce,"\n")
       print("De Once: ", @@once,"\n")
    print("De Diez: ", @@diez,"\n")
     end

     # Comprobar los premios.
     def comprobacion(combinacionTemp)

      #Valor auxiliar de acumulador
       @acum = 0

       # Empezamos a comprobar. 15 Comprobaciones
       0.upto(14) do |x|

         if self == combinacionTemp
           @acum = @acum + 1
         elsif self == nil
           @acum = @acum + 1
         end

         # Comprobamos premios e incrementamos variables de clase
         if @acum == 10
           @@diez = @@diez + 1
         elsif @acum == 11
           @@once = @@once +1
         elsif @acum == 12
           @@doce = @@doce +1
         elsif @acum == 13
           @@trece = @@trece +1
         elsif @acum == 14
           @@catorce = @@catorce+1
         elsif @acum == 15
           @@quince = @@quince+1
         end # Fin de comprobacion

       end

       return self

     end # Fin de comprobacion

end

# Definimos combi, sub clase de String
class Combi < String

  # Metodo de pasar una cadena a un array.
     def to_a(cadena)

  # Definimos
  @arrayc = Combinacion.new(15)

       # Para cada elemento de la cadena
       cadena.each_byte {
              >c> # Construyo C
              @arrayc.push(c.chr) # Lo convierto en char y almaceno en un
elemento de un array
              }
    return @arrayc

  end

#####################################
#
# INICIO
#
#####################################

# Inicializamos nueva combinacionc
cganadora = Combinacion.new(15)

# Pedimos combinacion al usuario.15 Signos
0.upto(14) do |x| # Recibimos X como parametro contador

  print("Partido ", x+1,": ")
  char = gets
  char.upcase!

  # Insertamos en el array
  cganadora = char

end # Fin de pedir combinaciones

# Definimos archivo
$CFILE = "combi.txt"

# Vamos a abrir archivo
File.open($CFILE) do |combi_file|

  # Para cada linea
  combi_file.each do |line|
    combi = line

      combinacionTemp = combi.to_a #Devuelve combinacionTemp y genera un
array
      cganadora.comprobacion(combinacionTemp)

    end
  end

  cganadora.dame_resultados

end

---------END --------------------------------------------------

--
Posted via http://www.ruby-forum.com/\.

4

Hi --

Farrel Lifson wrote:

Posted via http://www.ruby-forum.com/\.

Could you show us the code which is doing this?

Farrel

Yes. Here it is... The objetive of the program is the following:

- The user inserts a string of 15 signs.
- The program loads a .txt file with a bunch of strings of 15 signs
- The program compares each string of the file with the one the user
wrote, and returns the number of signs matching between ALL the strings
in the file with the one the user wrote, but only beggining at a minimum
amount of 10.

Here it goes

[...]

  combi_file.each do |line|
    combi = line

      combinacionTemp = combi.to_a #Devuelve combinacionTemp y genera un
array
      cganadora.comprobacion(combinacionTemp)

When you to the to_a, you're going to end up with an array of one
element -- namely, the whole line. I think you want to split it up
into characters.

David

···

On Wed, 15 Nov 2006, Flaab Mrlinux wrote:

--
                   David A. Black | dblack@rubypal.com
Author of "Ruby for Rails" [1] | Ruby/Rails training & consultancy [3]
DABlog (DAB's Weblog) [2] | Co-director, Ruby Central, Inc. [4]
[1] Ruby for Rails | [3] http://www.rubypowerandlight.com
[2] http://dablog.rubypal.com | [4] http://www.rubycentral.org