Problem with files comparing

[Cheyne Li]

Hi, there

My problem is to compare two files in the same directory as the program
does.

the code is:

require 'ftools'
def fcmp
from = 'my_log.txt'
to = 'my_log_e.txt'
if compare(from,to, verbose = false) then
puts 'Identical.'
else
puts 'Different.'
end
end

After running the function. There's no result as all. Is there anybody
has the idea what's wrong with it?

 

[Dave Thomas]

require 'ftools'
def fcmp
from = 'my_log.txt'
to = 'my_log_e.txt'
if compare(from,to, verbose = false) then
puts 'Identical.'
else
puts 'Different.'
end
end

After running the function. There's no result as all. Is there anybody
has the idea what's wrong with it?

You probably need to call your function.


Dave

 

[Cheyne Li]

You probably need to call your function.


Dave

Hi, Dave

I tried put them in a class, and tested, but it kept throwing me the
error message. The code and error message are in the following:

class Cmprocess
# Create the object
def initialize(from,to)
@from = from
@to = to
end

def fcmp
require 'ftools'
compare(@from,@to, true)
end

r= Cmprocess.new("my_log.txt","my_log_e.txt")

if r.fcmp then
puts "Identical files."
else
puts "Different files."
end

end


C:\Documents and Settings\cheynel\My
Documents\NetBeansProjects\task1\lib\fcmp.rb:11:in `fcmp': undefined
method `compare' for #<Cmprocess:0xb40ec4 @to="my_log_e.txt",
@from="my_log.txt"> (NoMethodError)
from C:\Documents and Settings\cheynel\My
Documents\NetBeansProjects\task1\lib\fcmp.rb:16
from C:\Documents and Settings\cheynel\My
Documents\NetBeansProjects\task1\lib\fcmp.rb:2


I used netbean for ruby to ran it

 

[Dave Thomas]

I tried put them in a class, and tested, but it kept throwing me the
error message. The code and error message are in the following:

1. It's relatively unusual to create instances of a class inside the
class body, but that won't cause this problem

2. Where do you define the 'compare' method?


Dave

 

[Cheyne Li]

1. It's relatively unusual to create instances of a class inside the
class body, but that won't cause this problem

2. Where do you define the 'compare' method?


Dave

compare is a std mathod in ftools.rb

 

[Dave Thomas]

compare is a std mathod in ftools.rb

Then you'd need to say File.compare, and not just compare.


Dave

 

[Cheyne Li]

Then you'd need to say File.compare, and not just compare.


Dave

Ok. I c. Thanks man