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Title: Chapter 6: A Supervisor Example
Date/Time: Thu, 28 Feb 2013 22:33:24 UT
Description:
Hello *Erlang* users
I was testing the Supervisor Example and I could not make it to work
perfectly as it is shown ending the chapter. Namely, the following lines
are in order to depict that the examples works well.
*1>* *my_supervisor*:*start_link(*m y_supervisor, *[*{add_two, start, []}*])*
.
*ok*
Title: Re: Exercise 5-3: atomic operation
Date/Time: Thu, 21 Feb 2013 16:12:43 UT
Description:
Hello Ivan,
I'm trying to solve this exercise: Swapping Handlers and reading your code
and taking into account the exercise literally, what happens if you try to
swap the log_handler?. In the log_handler code, the terminate/1 function
closes the file and returns an 'ok' atom, now in your code, if you pass
Title: Re: [Erlang Programming Book] Exercise 4-1: An Echo Server
Date/Time: Wed, 28 Nov 2012 04:17:10 UT
Description:
Thank you for your answer. I found an error. I renamed the module
-module(echo3), but forgot to change the string register(echo, spawn(echo,
loop, [])).
вторник, 27 ноября 2012 г., 20:13:04 UTC+4 пользователь Simon Thompson
написал:
Title: Re: Exercise 4-1: An Echo Server
Date/Time: Tue, 27 Nov 2012 12:37:37 UT
Description:
An error occurs during the execution this code.
=ERROR REPORT==== 27-Nov-2012::16:23:39 ===
Error in process <0.44.0> with exit value: {undef,[{echo,loop,[],[]}]}
I don't understand why. Could you please help me.
Title: Re: [Erlang Programming Book] chapter 12
Date/Time: Fri, 22 Jul 2011 16:35:01 UT
Description:
than you sir
-----Original Message-----
Sent: Friday, July 22, 2011 12:06 PM
To: erlang-programming-book@google groups.com
This looks like its add_user/1 not 2 or 3, add_user takes a record as
an argument.
In the function definition you are pattern-matching the record, and
defining Phone as the msisdn attribute of the record and CustId as the
Title: chapter 12
Date/Time: Fri, 22 Jul 2011 15:56:28 UT
Description:
usr calls usr_db:add_usr/3 while usr_db is add_usr/2
add_usr arity 2 and arity 3 mismatch
what am I missing?
--(module usr)--
handle_call({add_usr, PhoneNo, CustId, Plan}, _From, LoopData) ->
Reply = usr_db:add_usr(#usr{msisdn=Pho neNo,
id=CustId,
plan=Plan}),
Title: Re: [Erlang Programming Book] excersise 2-3, what is the meaning of nand?
Date/Time: Thu, 23 Jun 2011 07:19:47 UT
Description:
"nand" stands for "not and", like the nand gates from the olden days.
nand(a,b) = not(and(a,b))
Best wishes
Ivan
Title: excersise 2-3, what is the meaning of nand?
Date/Time: Thu, 23 Jun 2011 03:58:11 UT
Description:
b_not or b_and are just like "not" and "and".
But what is the meaning of nand?
thx
Title: Re: [Erlang Programming Book] What can I get the codes
Date/Time: Thu, 09 Jun 2011 06:31:13 UT
Description:
Hi,
Glad you like the book. We decided not to include solutions to the
exercises, allowing lecturers to use them as assignments in university
courses. But if you ask, I am sure someone on the list will (offline :-)
) point you in the right direction.
Happy programming,
Francesco
Title: What can I get the codes
Date/Time: Thu, 09 Jun 2011 05:41:42 UT
Description:
I'm fond of the "Erlang Programming" very much.But I don't know where
I can get codes which is the answer to the exercise attached to the
end of every chapter.I have already downloaded some codes from the
[link] only to found that what I need were
not Incorporated.Could you help me with my problem?Thanks a lot!