mirror of
https://github.com/golang/go
synced 2024-11-24 20:10:02 -07:00
tutorial code:
tweak a program or two delete unused programs add shell script to run them all R=gri DELTA=213 (62 added, 147 deleted, 4 changed) OCL=15435 CL=15437
This commit is contained in:
Rob Pike
parent
304440356d
commit
f7a506bf42
@ -1,52 +0,0 @@
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// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package main
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type INT uint64
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func Multiplier(f INT, in, out *chan INT) {
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for {
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out -< (f * <-in);
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}
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}
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func min(a, b INT) INT {
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if a < b { return a }
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return b;
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}
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func main() {
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c2i := new(chan INT, 100);
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c2o := new(chan INT);
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c3i := new(chan INT, 100);
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c3o := new(chan INT);
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c5i := new(chan INT, 100);
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c5o := new(chan INT);
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go Multiplier(2, c2i, c2o);
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go Multiplier(3, c3i, c3o);
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go Multiplier(5, c5i, c5o);
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var x INT = 1;
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x2 := x;
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x3 := x;
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x5 := x;
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for i := 0; i < 100; i++ {
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print(x, "\n");
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c2i -< x;
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c3i -< x;
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c5i -< x;
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if x2 == x { x2 = <- c2o }
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if x3 == x { x3 = <- c3o }
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if x5 == x { x5 = <- c5o }
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x = min(min(x2, x3), x5);
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}
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sys.exit(0);
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}
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@ -1,48 +0,0 @@
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// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package main
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type INT uint64
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func Multiplier(f INT) (in, out *chan INT) {
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inc := new(chan INT, 100);
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outc := new(chan INT);
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go func(f INT, in, out *chan INT) {
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for {
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out -< f * <-in;
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}
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}(f, inc, outc)
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return inc, outc
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}
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func min(a, b INT) INT {
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if a < b { return a }
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return b;
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}
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func main() {
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c2i, c2o := Multiplier(2);
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c3i, c3o := Multiplier(3);
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c5i, c5o := Multiplier(5);
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var x INT = 1;
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x2, x3, x5 := x, x, x;
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for i := 0; i < 100; i++ {
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print(x, "\n");
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c2i -< x;
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c3i -< x;
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c5i -< x;
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if x2 == x { x2 = <- c2o }
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if x3 == x { x3 = <- c3o }
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if x5 == x { x5 = <- c5o }
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x = min(min(x2, x3), x5);
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}
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sys.exit(0);
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}
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@ -1,59 +0,0 @@
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// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package main
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type INT uint64
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func Multiplier(f INT) (in, out *chan INT) {
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in = new(chan INT, 100);
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out = new(chan INT, 100);
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go func(in, out *chan INT, f INT) {
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for {
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out -< f * <- in;
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}
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}(in, out, f);
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return in, out;
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}
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func min(xs *[]INT) INT {
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m := xs[0];
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for i := 1; i < len(xs); i++ {
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if xs[i] < m {
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m = xs[i];
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}
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}
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return m;
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}
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func main() {
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F := []INT{2, 3, 5};
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const n = len(F);
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x := INT(1);
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ins := new([]*chan INT, n);
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outs := new([]*chan INT, n);
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xs := new([]INT, n);
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for i := 0; i < n; i++ {
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ins[i], outs[i] = Multiplier(F[i]);
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xs[i] = x;
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}
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for i := 0; i < 100; i++ {
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print(x, "\n");
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t := min(xs);
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for i := 0; i < n; i++ {
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ins[i] -< x;
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}
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for i := 0; i < n; i++ {
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if xs[i] == x { xs[i] = <- outs[i]; }
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}
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x = min(xs);
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}
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sys.exit(0);
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}
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@ -7,7 +7,7 @@ package main
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import FD "fd"
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func main() {
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hello := []byte{'h', 'e', 'l', 'l', 'o', ', ', ' ', 'w', 'o', 'r', 'l', 'd', '\n'};
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hello := []byte{'h', 'e', 'l', 'l', 'o', ',', ' ', 'w', 'o', 'r', 'l', 'd', '\n'};
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FD.Stdout.Write(&hello);
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fd, errno := FD.Open("/does/not/exist", 0, 0);
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if fd == nil {
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65
doc/progs/run
Executable file
65
doc/progs/run
Executable file
@ -0,0 +1,65 @@
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#!/bin/bash
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# Copyright 2009 The Go Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style
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# license that can be found in the LICENSE file.
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rm -f *.6
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for i in \
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fd.go \
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helloworld.go \
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helloworld2.go \
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helloworld3.go \
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echo.go \
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cat.go \
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cat_rot13.go \
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sum.go \
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sort.go \
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sortmain.go \
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sieve.go \
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sieve1.go \
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server1.go \
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; do
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BASE=$(basename $i .go)
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6g $i
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done
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function testit {
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6l $1.6
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x=$(echo $(6.out $2 2>&1)) # extra echo canonicalizes
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if [ "$x" != "$3" ]
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then
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echo $1 failed: '"'$x'"' is not '"'$3'"'
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fi
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}
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function testitpipe {
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6l $1.6
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x=$(echo $(6.out | $2 2>&1)) # extra echo canonicalizes
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if [ "$x" != "$3" ]
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then
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echo $1 failed: '"'$x'"' is not '"'$3'"'
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fi
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}
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testit helloworld "" "Hello, world; or Καλημέρα κόσμε; or こんにちは 世界"
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testit helloworld2 "" "Hello, world; or Καλημέρα κόσμε; or こんにちは 世界"
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testit helloworld3 "" "hello, world can't open file; errno=2"
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testit echo "hello, world" "hello, world"
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testit sum "" "6"
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alphabet=abcdefghijklmnopqrstuvwxyz
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rot13=nopqrstuvwxyzabcdefghijklm
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echo $alphabet | testit cat "" $alphabet
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echo $alphabet | testit cat_rot13 "--rot13" $rot13
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echo $rot13 | testit cat_rot13 "--rot13" $alphabet
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testit sortmain "" "Sunday Monday Tuesday Thursday Friday"
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testitpipe sieve "sed 10q" "2 3 5 7 11 13 17 19 23 29"
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testitpipe sieve "sed 10q" "2 3 5 7 11 13 17 19 23 29"
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# server hangs; don't run it
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testit server1 "" ""
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@ -27,9 +27,9 @@ func Server(op *BinOp, service *chan *Request, quit *chan bool) {
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}
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}
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func StartServer(op *BinOp) (servch *chan *Request, quitch *chan bool) {
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service := new(chan *Request);
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quit := new(chan bool);
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func StartServer(op *BinOp) (service *chan *Request, quit *chan bool) {
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service = new(chan *Request);
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quit = new(chan bool);
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go Server(op, service, quit);
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return service, quit;
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}
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