# \[Feature #494\] Errno.const\_missing

**URL:** <https://www.ruby-forum.com/t/feature-494-errno-const-missing/146782>\
**Category:** Development\
**Created:** [August 25, 2008, 12:59pm UTC](https://www.ruby-forum.com/t/feature-494-errno-const-missing/146782 "2008-08-25T12:59:26Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![Kazuhiro\_NISHIYAMA](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/77aa72/32.png) [@Kazuhiro\_NISHIYAMA](https://www.ruby-forum.com/u/Kazuhiro_NISHIYAMA)\
**Post date:** [August 25, 2008, 12:59pm UTC](https://www.ruby-forum.com/t/feature-494-errno-const-missing/146782/1 "2008-08-25T12:59:26Z")

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Feature #494: Errno.const\_missing  
[http://redmine.ruby-lang.org/issues/show/494](http://redmine.ruby-lang.org/issues/show/494)

e$B5/I\<\<Te(B: Kazuhiro NISHIYAMA  
e$B%9%F!\<%?%9e(B: Open, e$BM%@hEYe(B: Normal

#493  
[ruby-dev:35957]e$B$N%(%i!\<%a%C%;!\<%8$Ge(BErrno::NOMEMe$B$,e(BErrno::NOERRORe$B$Ke(B  
e$B$J$C$F$7$^$C$F$$$ke(B(Errno::ENOMEMe$B$Ne(Btypo?)e$B$h$&$K!"e(Btypoe$B$K5$$E$-$K$/$/$J$k$N$Ge(B  
Errno.const\_missinge$B$O$J$/$7$?J}$,NI$$$N$G$O$J$$$G$7$g$&$+e(B?

---

<div class="post-metadata">

**Author:** ![Kazuhiro\_NISHIYAMA](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/77aa72/32.png) [@Kazuhiro\_NISHIYAMA](https://www.ruby-forum.com/u/Kazuhiro_NISHIYAMA)\
**Post date:** [September 22, 2008, 7:26am UTC](https://www.ruby-forum.com/t/feature-494-errno-const-missing/146782/2 "2008-09-22T07:26:37Z")

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e$B%A%1%C%He(B #494 e$B$,99?7$5$l$^$7$?!#e(B (by Yuki S.)

e$BC4Ev\<Te(B Yukihiro M.e$B$+$ie(BYuki S.e$B$KJQ99e(B

r8112  
e$B$GF3F~$5$l$?$h$&$G$9$M!#0U?^$H$7$F$Oe(BEXXXe$B$NB8:\_$7$J$$%W%i%C%H%U%)!\<%`$Ge(B  
begin

# do something

rescue Errno::EXXX  
end

## e$B$9$k$He(BNameErrore$B$,H/@8$9$k!"$H$$$&$3$H$N$h$&$G$9!#e(BRubye$B%S%k%I;~$Ke(BEXXXe$B$,%7%9%F%`$KB8:\_$7$J$$\>l9g!"e(BErrno::EXXXe$B$re(BErrno::NOERRORe$B$NJLL\>$H$9$k$3$H$GBP1~$G$-$=$&$G$9!#$3$l$K$h$C$Fe(Bconst\_missinge$B$O:o=|$G$-$^$9!#e(B

[http://redmine.ruby-lang.org/issues/show/494](http://redmine.ruby-lang.org/issues/show/494)

---

<div class="post-metadata">

**Author:** ![Kazuhiro\_NISHIYAMA](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/77aa72/32.png) [@Kazuhiro\_NISHIYAMA](https://www.ruby-forum.com/u/Kazuhiro_NISHIYAMA)\
**Post date:** [September 26, 2008, 10:27am UTC](https://www.ruby-forum.com/t/feature-494-errno-const-missing/146782/3 "2008-09-26T10:27:47Z")

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e$B%A%1%C%He(B #494 e$B$,99?7$5$l$^$7$?!#e(B (by Yuki S.)

e$B%9%F!\<%?%9e(B Opene$B$+$ie(BClosede$B$KJQ99e(B  
e$B?JD=e(B % 0e$B$+$ie(B100e$B$KJQ99e(B

## Applied in changeset r19575.

[http://redmine.ruby-lang.org/issues/show/494](http://redmine.ruby-lang.org/issues/show/494)