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Bug #14378

Updated by HfCloud (Xiangyu Shi) over 1 year ago

On windows, start an IRB of a 64-bits ruby, enter these code:

~~~


(1<<29).equal?(1<<29)

#=>true


(1<<30).equal?(1<<30)
#=>false

~~~


So, it is that FIXNUM of the 64-bits ruby is a 32-bits data?
But my friend try these code on linux platform and all got true(it means FIXNUM is 64bits)
Then I opened ruby/ruby.h and found this:
~~~ ruby
#define RUBY_FIXNUM_MAX (LONG_MAX>>1)
~~~
The LONG_MAX of my compiler(msvc140, vs2017) is 2147483647, and the ruby which is installed by ruby-installer also have the same problem.

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