From: Heesob Park <phasis@...>
Date: 2009-05-13T10:19:21+09:00
Subject: Why Fixnum===Fixnum is false?

Hi,

I noticed the following behaviour.

irb(main):001:0> a = 1
=> 1
irb(main):002:0> a.class
=> Fixnum
irb(main):003:0> a.class == Fixnum
=> true
irb(main):004:0> a.class === Fixnum
=> false
irb(main):005:0> Fixnum === Fixnum
=> false
irb(main):006:0> a === Fixnum
=> false
irb(main):007:0> Fixnum === a
=> true

As a result:

case 1
when Fixnum
	puts 'Fixnum'
else
	puts 'else'
end
# => Fixnum

case 1.class
when Fixnum
	puts 'Fixnum'
else
	puts 'else'
end
#=> else

What is the reason Fixnum === Fixnum returns false?

Regards,
Park Heesob