mirror of
https://github.com/golang/go
synced 2024-11-15 03:20:31 -07:00
fc0dc04095
Very few of the compiler regression tests include a comment saying waht they do. Many are obvious, some are anything but. I've started with a-c in the top directory. More will follow once we agree on the approach, correctness, and thoroughness here. zerodivide.go sneaked in too. R=rsc, r CC=golang-dev https://golang.org/cl/5656100
76 lines
1.6 KiB
Go
76 lines
1.6 KiB
Go
// run
|
|
|
|
// Copyright 2009 The Go Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
// Solve the 2,3,5 problem (print all numbers with 2, 3, or 5 as factor) using channels.
|
|
// Test the solution, silently.
|
|
|
|
package main
|
|
|
|
type T chan uint64
|
|
|
|
func M(f uint64) (in, out T) {
|
|
in = make(T, 100)
|
|
out = make(T, 100)
|
|
go func(in, out T, f uint64) {
|
|
for {
|
|
out <- f*<-in
|
|
}
|
|
}(in, out, f)
|
|
return in, out
|
|
}
|
|
|
|
|
|
func min(xs []uint64) uint64 {
|
|
m := xs[0]
|
|
for i := 1; i < len(xs); i++ {
|
|
if xs[i] < m {
|
|
m = xs[i]
|
|
}
|
|
}
|
|
return m
|
|
}
|
|
|
|
|
|
func main() {
|
|
F := []uint64{2, 3, 5}
|
|
var n = len(F)
|
|
OUT := []uint64{
|
|
2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 27, 30, 32, 36,
|
|
40, 45, 48, 50, 54, 60, 64, 72, 75, 80, 81, 90, 96, 100, 108, 120, 125,
|
|
128, 135, 144, 150, 160, 162, 180, 192, 200, 216, 225, 240, 243, 250,
|
|
256, 270, 288, 300, 320, 324, 360, 375, 384, 400, 405, 432, 450, 480,
|
|
486, 500, 512, 540, 576, 600, 625, 640, 648, 675, 720, 729, 750, 768,
|
|
800, 810, 864, 900, 960, 972, 1000, 1024, 1080, 1125, 1152, 1200, 1215,
|
|
1250, 1280, 1296, 1350, 1440, 1458, 1500, 1536, 1600}
|
|
|
|
x := uint64(1)
|
|
ins := make([]T, n)
|
|
outs := make([]T, n)
|
|
xs := make([]uint64, n)
|
|
for i := 0; i < n; i++ {
|
|
ins[i], outs[i] = M(F[i])
|
|
xs[i] = x
|
|
}
|
|
|
|
for i := 0; i < len(OUT); i++ {
|
|
for i := 0; i < n; i++ {
|
|
ins[i] <- x
|
|
}
|
|
|
|
for i := 0; i < n; i++ {
|
|
if xs[i] == x {
|
|
xs[i] = <-outs[i]
|
|
}
|
|
}
|
|
|
|
x = min(xs)
|
|
if x != OUT[i] {
|
|
println("bad: ", x, " should be ", OUT[i])
|
|
panic("235")
|
|
}
|
|
}
|
|
}
|