8000 Float#round fix bug for infinity and nan cases by ksss · Pull Request #1907 · mruby/mruby · GitHub
[go: up one dir, main page]
Skip to content

Float#round fix bug for infinity and nan cases#1907

Merged
matz merged 1 commit intomruby:masterfrom
ksss:float-round
Mar 22, 2014
Merged

Float#round fix bug for infinity and nan cases#1907
matz merged 1 commit intomruby:masterfrom
ksss:float-round

Conversation

@ksss
Copy link
Contributor
@ksss ksss commented Mar 21, 2014

Current is like that.

> inf = 1.0/0.0
 => inf
> inf.round
 => -2147483648
> inf.round(-1)
 => -2147483648
> inf.round(1)
 => inf
> nan = 0.0/0.0
 => NaN
> nan.round
 => -2147483648
> nan.round(-1)
 => -2147483648
> nan.round(1)
 => NaN
> 42.0.round(306)
 => 42.0
> 42.0.round(307)
 => inf
> 1.0e307.round(1)
 => 1.0e+307
> 1.0e307.round(2)
 => inf

I think it's should be like that.

> inf = 1.0/0.0
 => inf
> inf.round
(mirb):1: Infinity (FloatDomainError)
> inf.round(-1)
(mirb):1: Infinity (FloatDomainError)
> inf.round(1)
 => inf
> nan = 0.0/0.0
 => NaN
> nan.round
(mirb):1: NaN (FloatDomainError)
> nan.round(-1)
(mirb):1: NaN (FloatDomainError)
> nan.round(1)
 => NaN
> 42.0.round(306)
 => 42.0
> 42.0.round(307)
 => 42.0
> 1.0e307.round(1)
 => 1.0e+307
> 1.0e307.round(2)
 => 1.0e+307

matz added a commit that referenced this pull request Mar 22, 2014
@matz
Merge pull request #1907 from ksss/float-round
5488da6 
Float#round fix bug for infinity and nan cases
@matz matz merged commit 5488da6 into mruby:master Mar 22, 2014
@akuroda
Copy link
Contributor
akuroda commented Mar 22, 2014

I added some documentation to Wiki: https://github.com/mruby/mruby/wiki/Scripting-faq#division-by-zero-does-not-raise-error.

@ksss
Copy link
Contributor Author
ksss commented Mar 22, 2014

👍

@ksss ksss deleted the float-round branch March 22, 2014 12:34
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Reviewers

No reviews

Assignees

No one assigned

Labels

None yet

Projects

None yet

Milestone

No milestone

Development

Successfully merging this pull request may close these issues.

3 participants

@ksss @akuroda @matz
0