MESSAGE
| DATE | 2011-03-15 |
| FROM | Ruben Safir
|
| SUBJECT | Subject: [NYLXS - HANGOUT] [billy.donahue@gmail.com: Re: this compared to NULL]
|
----- Forwarded message from Billy -----
Date: Tue, 15 Mar 2011 13:06:56 -0400
From: Billy
To: Ruben Safir
Subject: Re: this compared to NULL
You're trying to return NULL from a method that returns MESSAGE.
That's not going to work.
It has nothing to do with the comparison: this==NULL
This would be clear if you used newlines in your code.
There's no great advantage to squishing a method onto one line,
and it makes diagnostics harder to pinpoint.
On Tue, Mar 15, 2011 at 2:17 AM, Ruben Safir wrote:
> I just realized you don't have the MYSQL setup, but here is the compiler
> output
>
> || g++ ? -Wall -ggdb -I/usr/local/include/mysql
> -I/usr/local/include/mysql++ -c linklist.cpp
> || g++ ?-Wall -ggdb -I/usr/local/include/mysql
> -I/usr/local/include/mysql++ -c linklist_main.cpp
> || In file included from linklist_main.cpp:1:
> || linklist.h: In member function ?unk CHAINLIST::NODE::value()
> [with unk = MESSAGE]?:
> linklist.h|154| instantiated from ?void
> CHAINLIST::LIST::display(std::ostream&) [with unk = MESSAGE]?
> linklist_main.cpp|312| instantiated from here
> linklist.h|43| error: conversion from ?int? to non-scalar type ?MESSAGE?
> requested
> || make: *** [linklist_main.o] Error 1
>
>
> On Tue, Mar 15, 2011 at 01:59:08AM -0400, Ruben Safir wrote:
>> Try to compile this. ?It seems to be telling me that I can't compare
>> this to NULL which it has done just fine with the string<> library
>> and otherwise.
>>
>> I'm at a loss to the problem.
>>
>> Ruben
>> --
>> http://www.mrbrklyn.com - Interesting Stuff
>> http://www.nylxs.com - Leadership Development in Free Software
>>
>> So many immigrant groups have swept through our town that Brooklyn, like Atlantis, reaches mythological proportions in the mind of the world ?- RI Safir 1998
>>
>> http://fairuse.nylxs.com ?DRM is THEFT - We are the STAKEHOLDERS - RI Safir 2002
>>
>> "Yeah - I write Free Software...so SUE ME"
>>
>> "The tremendous problem we face is that we are becoming sharecroppers to our own cultural heritage -- we need the ability to participate in our own society."
>>
>> "> I'm an engineer. I choose the best tool for the job, politics be damned.<
>> You must be a stupid engineer then, because politcs and technology have been attached at the hip since the 1st dynasty in Ancient Egypt. ?I guess you missed that one."
>>
>> ? Copyright for the Digital Millennium
>
>
>
> --
> http://www.mrbrklyn.com - Interesting Stuff
> http://www.nylxs.com - Leadership Development in Free Software
>
> So many immigrant groups have swept through our town that Brooklyn, like Atlantis, reaches mythological proportions in the mind of the world ?- RI Safir 1998
>
> http://fairuse.nylxs.com ?DRM is THEFT - We are the STAKEHOLDERS - RI Safir 2002
>
> "Yeah - I write Free Software...so SUE ME"
>
> "The tremendous problem we face is that we are becoming sharecroppers to our own cultural heritage -- we need the ability to participate in our own society."
>
> "> I'm an engineer. I choose the best tool for the job, politics be damned.<
> You must be a stupid engineer then, because politcs and technology have been attached at the hip since the 1st dynasty in Ancient Egypt. ?I guess you missed that one."
>
> ? Copyright for the Digital Millennium
>
--
?n??uop ?ll?q
----- End forwarded message -----
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