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<h2>Go mode</h2>
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// Prime Sieve in Go.
// Taken from the Go specification.
// Copyright © The Go Authors.
package main
import "fmt"
// Send the sequence 2, 3, 4, ... to channel 'ch'.
func generate(ch chan<- int) {
for i := 2; ; i++ {
ch <- i // Send 'i' to channel 'ch'
}
}
// Copy the values from channel 'src' to channel 'dst',
// removing those divisible by 'prime'.
func filter(src <-chan int, dst chan<- int, prime int) {
for i := range src { // Loop over values received from 'src'.
if i%prime != 0 {
dst <- i // Send 'i' to channel 'dst'.
}
}
}
// The prime sieve: Daisy-chain filter processes together.
func sieve() {
ch := make(chan int) // Create a new channel.
go generate(ch) // Start generate() as a subprocess.
for {
prime := <-ch
fmt.Print(prime, "\n")
ch1 := make(chan int)
go filter(ch, ch1, prime)
ch = ch1
}
}
func main() {
sieve()
}
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<p><strong>MIME type:</strong> <code>text/x-go</code></p>
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