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[go] doc: add new bufio functionality
cl/345570 cl/345569 Updates: #47694 Change-Id: I170af16d5fc9f022d3d29ed0772cfc3d02b8bbcf Reviewed-on: https://go-review.googlesource.com/c/go/+/365317 Trust: Jeremy Faller <jeremy@golang.org> Run-TryBot: Jeremy Faller <jeremy@golang.org> Reviewed-by: Joe Tsai <joetsai@digital-static.net>
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@ -236,11 +236,17 @@ proposal</a>.
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<dl id="bufio"><dt><a href="/pkg/bufio/">bufio</a></dt>
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<dd>
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<p><!-- CL 345569 -->
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TODO: <a href="https://golang.org/cl/345569">https://golang.org/cl/345569</a>: add Writer.AvailableBuffer
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The new <a href="/pkg/bufio#AvailableBuffer"><code>Writer.AvailableBuffer</code></a>
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method returns an empty buffer with a possibly non-empty capacity for use
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with append-like APIs. After appending, the buffer can be provided to a
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succeeding <code>Write</code> call and possibly avoid any copying.
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</p>
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<p><!-- CL 345570 -->
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TODO: <a href="https://golang.org/cl/345570">https://golang.org/cl/345570</a>: make Reader.Reset and Writer.Reset work on the zero value
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The methods <a href="/pkg/bufio#Reader.Reset"><code>Reader.Reset</code></a> and
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<a href="/pkg/bufio#Writer.Reset"><code>Writer.Reset</code></a>
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now use the default buffer size when called on objects with a
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<code>nil</code> buffer.
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</p>
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</dd>
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</dl><!-- bufio -->
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