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[DOC] describe methods used for src and dst argument.

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60233 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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akr 2017-10-21 06:45:41 +00:00
parent a2831955b2
commit ae2578f6bc
1 changed files with 6 additions and 1 deletions
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7
io.c
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@ -11017,7 +11017,12 @@ copy_stream_finalize(VALUE arg)
* IO.copy_stream(src, dst, copy_length, src_offset)
*
* IO.copy_stream copies <i>src</i> to <i>dst</i>.
* <i>src</i> and <i>dst</i> is either a filename or an IO.
* <i>src</i> and <i>dst</i> is either a filename or an IO-like object.
* IO-like object for <i>src</i> should have <code>readpartial</code> or
* <code>read</code> method.
* IO-like object for <i>dst</i> should have <code>write</code> method.
* (Specialized mechanisms, such as sendfile system call, may be used
* on appropriate situation.)
*
* This method returns the number of bytes copied.
*