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add explanation for divizion by zero behavior

Akira Kuroda
2014-03-22 02:24:49 -07:00
parent dd531a4edf
commit 8ecb5866d0
1 changed files with 13 additions and 1 deletions
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Scripting-faq.md
+13 -1
@@ -21,4 +21,16 @@ line 1: syntax error, unexpected tGVAR
Aliasing global variables using alias statement is out of ISO scope.
it's mruby limitation.
See also [mruby/issues#1154](https://github.com/mruby/mruby/issues/1154).
See also [mruby/issues#1154](https://github.com/mruby/mruby/issues/1154).
## Division by zero does not raise error.
```
> 1 / 0
=> inf
> 1 % 0
=> NaN
> 0 / 0
=> NaN
```
This behavior is an ISO incompatible feature. See
[mruby/pull#492](https://github.com/mruby/mruby/pull/492) and [mruby/pull#1907](https://github.com/mruby/mruby/pull/1907) .