From: Haoqi Haoqi <axgle@126.com>
Date: 2007-05-01T14:47:20+09:00
Subject: Re: LONG2NUM vs LONG2FIX

Joel VanderWerf wrote:
> Haoqi Haoqi wrote:
>> what's the difference about "LONG2NUM and LONG2FIX" in ruby c api?
> 
> LONG2FIX will truncate into a Fixnum (a 31 bit signed integer). LONG2NUM
>   will convert to Bignum (arbitrary precision integer) if necessary.
> 
>> why not "return LONG2FIX after FIX2LONG"??
>> thanks.
> 
> (-2**30).class  # => Fixnum
> (2**30).class   # => Bignum
> (-2**30).abs.class  # => Bignum

Thank you~

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