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fix some typos, mostly

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R=gri
OCL=16161
CL=16161
This commit is contained in:
Rob Pike 2008-09-29 20:06:48 -07:00
parent 1f3e842c73
commit 81672ef15b
2 changed files with 6 additions and 4 deletions
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8
doc/go_tutorial.txt
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@ -348,7 +348,7 @@ we have a second implementation of the "Reader" interface.
--PROG progs/cat_rot13.go /type.Rot13/ /end.of.Rot13/ --PROG progs/cat_rot13.go /type.Rot13/ /end.of.Rot13/
(The "rot13" function called on line 39 is trivial and not worth reproducing.) (The "rot13" function called on line 38 is trivial and not worth reproducing.)
To use the new feature, we define a flag: To use the new feature, we define a flag:
@ -358,6 +358,8 @@ and use it from within a mostly unchanged "cat()" function:
--PROG progs/cat_rot13.go /func.cat/ /^}/ --PROG progs/cat_rot13.go /func.cat/ /^}/
(We could also do the wrapping in "main" and leave "cat()" mostly alone, except
for changing the type of the argument.)
Lines 53 and 54 set it all up: If the "rot13" flag is true, wrap the "Reader" Lines 53 and 54 set it all up: If the "rot13" flag is true, wrap the "Reader"
we received into a "Rot13" and proceed. Note that the interface variables we received into a "Rot13" and proceed. Note that the interface variables
are values, not pointers: the argument is of type "Reader", not "*Reader", are values, not pointers: the argument is of type "Reader", not "*Reader",
@ -374,7 +376,7 @@ Here it is in action:
</pre> </pre>
Fans of dependency injection may take cheer from how easily interfaces Fans of dependency injection may take cheer from how easily interfaces
made substituting the implementation of a file descriptor. allow us to substitute the implementation of a file descriptor.
Interfaces are a distinct feature of Go. An interface is implemented by a Interfaces are a distinct feature of Go. An interface is implemented by a
type if the type implements all the methods declared in the interface. type if the type implements all the methods declared in the interface.
@ -526,7 +528,7 @@ With channels, it's possible to serve multiple independent client goroutines wit
writing an actual multiplexer. The trick is to send the server a channel in the message, writing an actual multiplexer. The trick is to send the server a channel in the message,
which it will then use to reply to the original sender. which it will then use to reply to the original sender.
A realistic client-server program is a lot of code, so here is a very simple substitute A realistic client-server program is a lot of code, so here is a very simple substitute
to illustrate the idea. It starts by defining "Request" type, which embeds a channel to illustrate the idea. It starts by defining a "Request" type, which embeds a channel
that will be used for the reply. that will be used for the reply.
--PROG progs/server.go /type.Request/ /^}/ --PROG progs/server.go /type.Request/ /^}/

2
doc/progs/sieve.go
View File

@ -13,7 +13,7 @@ func Generate(ch *chan int) {
// Copy the values from channel 'in' to channel 'out', // Copy the values from channel 'in' to channel 'out',
// removing those divisible by 'prime'. // removing those divisible by 'prime'.
func Filter(in *chan int, out *chan int, prime int) { func Filter(in, out *chan int, prime int) {
for { for {
i := <-in // Receive value of new variable 'i' from 'in'. i := <-in // Receive value of new variable 'i' from 'in'.
if i % prime != 0 { if i % prime != 0 {