groovy-users mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Pascal Schumacher <pascalschumac...@gmx.net>
Subject Re: Math Operations
Date Fri, 09 Oct 2015 19:24:33 GMT
The documentation says "binary operations involving |BigInteger| and any 
other integral type result in |BigInteger".

|If I understand the table correctly it show that int and BigInteger 
result in BigInteger.

Am I missing something?

-Pascal

Am 09.10.2015 um 20:23 schrieb Winnebeck, Jason:
>
> I’ve been struggling with types in math operations in Groovy. I think 
> there is an error in the documentation?
>
> http://groovy-lang.org/syntax.html#_math_operations
>
> It says that int and BigDecimal result in double, but it doesn’t, it 
> results in BigDecimal instead. It appears this holds for byte, char, 
> short, and long as well.
>
> assert (15.0 + 1).class == BigDecimal
>
> Are there other errors in that table? It seems so… because byte + 
> short is a byte and not an int as mentioned in that table:
>
> assert ((byte)1 + (short)1).class == Byte
>
> I would put in a PR to fix up that doc but I’m not sure I understand 
> how it all works. Normally when I do maths I try to stick all to 
> primitive types or all to BigDecimal types. Today I’m trying to make 
> sure I don’t accidentally go from BigDecimals to float/double.
>
> *Jason Winnebeck*
>
> *Software Engineer III Contractor - IT Software Development | Windstream*
>
> 600 Willowbrook Office Park, Rochester, NY 14450
>
> Jason.Winnebeck@windstream.com 
> <mailto:Jason.Winnebeck@windstream.com> | windstreambusiness.com
>
> o: 585.794-4585
>
> ------------------------------------------------------------------------
> This email message and any attachments are for the sole use of the 
> intended recipient(s). Any unauthorized review, use, disclosure or 
> distribution is prohibited. If you are not the intended recipient, 
> please contact the sender by reply email and destroy all copies of the 
> original message and any attachments.


Mime
View raw message