Golang create multireader of bytes.Buffer array

Question

I need Create MultiReader of slice []*bytes.Buffer
buffer_slice := ... (type []*bytes.Buffer)
When i write io.MultiReader(buffer_slice)

I get the error:
cannot use buffer_slice (type []*bytes.Buffer) as type io.Reader in argument to io.MultiReader: []*bytes.Buffer does not implement io.Reader (missing Read method).

But function signature MultiReader(readers ...Reader) Reader

I understand that the transmit array is meaningless, the actual question: besides the trivial cycle, there are no more options?

P.S. Sorry for my bad english.

See golang.org/doc/faq#convert_slice_of_interface. The types are different, but the reasons are the same. — user4122236
– user4122236, Commented Oct 26, 2014 at 23:52

jmaloney · Accepted Answer · 2014-10-27 02:37:14Z

4

Your slice should be type []io.Reader

b1 := &bytes.Buffer{}
b2 := &bytes.Buffer{}
buffers := []io.Reader{b1, b2}

multi := io.MultiReader(buffers...)

answered Oct 27, 2014 at 2:37

jmaloney

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1 Comment

Konstantin Smirnov Over a year ago

Thanks for the advice, now everything is fine!

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