39 lines
585 B
Go
39 lines
585 B
Go
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// Copyright © 2016 Alan A. A. Donovan & Brian W. Kernighan.
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// License: https://creativecommons.org/licenses/by-nc-sa/4.0/
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// See page 229.
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// Pipeline2 demonstrates a finite 3-stage pipeline.
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package main
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import "fmt"
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//!+
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func main() {
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naturals := make(chan int)
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squares := make(chan int)
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// Counter
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go func() {
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for x := 0; x < 100; x++ {
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naturals <- x
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}
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close(naturals)
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}()
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// Squarer
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go func() {
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for x := range naturals {
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squares <- x * x
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}
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close(squares)
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}()
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// Printer (in main goroutine)
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for x := range squares {
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fmt.Println(x)
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}
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}
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//!-
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