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* error.c: [DOC] Document Exception#cause by @jasonrclark [ci skip]

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[Fixes GH-519] https://github.com/ruby/ruby/pull/519


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44783 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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zzak 2014-01-31 21:31:12 +00:00
parent 09c3f84566
commit 16220d9abb
2 changed files with 14 additions and 0 deletions
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ChangeLog
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@ -1,3 +1,8 @@
Sat Feb 1 06:30:20 2014 Zachary Scott <e@zzak.io>
* error.c: [DOC] Document Exception#cause by @jasonrclark [ci skip]
[Fixes GH-519] https://github.com/ruby/ruby/pull/519
Sat Feb 1 06:10:49 2014 Zachary Scott <e@zzak.io> Sat Feb 1 06:10:49 2014 Zachary Scott <e@zzak.io>
* lib/securerandom.rb: [DOC] Add note on require for examples * lib/securerandom.rb: [DOC] Add note on require for examples

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error.c
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@ -804,6 +804,15 @@ rb_exc_set_backtrace(VALUE exc, VALUE bt)
return exc_set_backtrace(exc, bt); return exc_set_backtrace(exc, bt);
} }
/*
* call-seq:
* exception.cause -> an_exception
*
* Returns the previous exception ($!) at the time this exception was raised.
* This is useful for wrapping exceptions and retaining the original exception
* information.
*/
VALUE VALUE
exc_cause(VALUE exc) exc_cause(VALUE exc)
{ {