of an Rpi.
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Michael Schnell wrote:
On 08/14/2015 04:38 PM, Mark Morgan Lloyd wrote:
It seeds itself with entropy from the intervals between LAN packets,
intervals between typed characters and so on.
Unfortunately Randomize (in Linux in System) just does
randseed:=longint(Fptime(nil));
if it would
got broken
security, which probably describes the majority.
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I seem to have a tablet with Android 5.0 based on an Intel Atom CPU
(Z3735F) here.
I've got rather a lot of stuff on my plate so I'm putting off playing
with this as long as I can, but can anybody comment on where FPC (and
possibly Lazarus) are with this sort of device?
--
Mark Morgan Lloyd
on things
and claim that their files are the original and anything published by
FPC/Lazarus is an unauthorised copy. Sorting things out would probably
be messy and expensive.
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Morgan Lloyd
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Marco van de Voort wrote:
In our previous episode, Mark Morgan Lloyd said:
I think that the one thing I'd suggest to everybody is that it would be
highly desirable if the dangling else fix were guaranteed to break
Pascal syntax. As such end if; etc. might be a better choice
If you start
Gour wrote:
Mark Morgan Lloyd
markMLl.fpc-pascal-wEaNgGkE20o7VdE/foj...@public.gmane.org writes:
The first option would be a pure Pascal one, driving either a
graphical or a text-based (curses etc.) UI.
Here you mean fpGUI MSEgui?
No, more than anything I mean going directly
learning curve I think.
Graeme, could you update us on the extent to which Lazarus or an
equivalent IDE supports form design etc. for fpGUI these days?
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careful choice of
compiler version and- if using Lazarus- widget set.
fpGUI and MSEgui definitely have their good points, they're lean and are
only mean in self-defence :-)
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experience so
far is that GTK2 doesn't work and that Qt is the only viable option.
GOK what it's like on other platforms that might not have such a
well-tested Qt etc.
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Lukasz Sokol wrote:
On 31/07/15 16:41, Mark Morgan Lloyd wrote:
Lukasz Sokol wrote:
On 31/07/15 14:46, Mark Morgan Lloyd wrote:
Lukasz Sokol wrote:
Hi,
I tried piecing something like in $topic together,
intended as an 'interactive' command interpreter for my program. (which will in
time
to process lines rather than characters.
I think this was discussed a few months ago, and consensus was that
there wasn't an adequate terminal emulator component. See below.
http://free-pascal-lazarus.989080.n3.nabble.com/Lazarus-Xterm-konsole-etc-td4031905.html
--
Mark Morgan Lloyd
markMLl
Lukasz Sokol wrote:
On 31/07/15 14:46, Mark Morgan Lloyd wrote:
Lukasz Sokol wrote:
Hi,
I tried piecing something like in $topic together,
intended as an 'interactive' command interpreter for my program.
(which will in time grow an 'embedded' web server and intended to
run as a (windows
Lukasz Sokol wrote:
On 24/07/15 12:12, Mark Morgan Lloyd wrote:
It turns out that there's a more-or-less off-the-shelf solution in
SpanDSP http://www.soft-switch.org/ which is one of the libraries
that underlies IAXmodem. It provides a function to process a block of
samples, hence a callback
Coyo wrote:
On Sun, 26 Jul 2015 15:47:52 +
Mark Morgan Lloyd markmll.fpc-pas...@telemetry.co.uk wrote:
Michael Van Canneyt wrote:
On Sun, 26 Jul 2015, Coyo wrote:
I have read on the wiki and documentation that FreePascal does not
have any native support for socket handling, and that you
but aren't packaged with FPC because
their developers prefer to stay independent.
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Michael Van Canneyt wrote:
On Fri, 24 Jul 2015, Mark Morgan Lloyd wrote:
When writing something like a parser, does FPC have anything that
exposes the properties of each Unicode codepoint?
I'm thinking in particular of Unicode properties like BidiMirroring,
which Perl6 uses to define
Lukasz Sokol wrote:
On 20/07/15 17:32, Mark Morgan Lloyd wrote:
Lukasz Sokol wrote:
It's been years since I had anything to do with DSP, unfortunately,
but with the FFT running on the sliding 26-sample-long window, and
a /reverse/ FFT to produce the 26-long sample from just having a
byte or 2
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Lukasz Sokol wrote:
Hi Mark,
On 18/07/15 17:43, Mark Morgan Lloyd wrote:
Has anybody used FPC to decode (and generate) FSK modem tones on a
VOIP connection? Strictly V.21, don't need the complexity of QAM
etc.
i haven't ;) but it's interesting: are you just assembling/decoding
the ulaw
Lukasz Sokol wrote:
On 20/07/15 10:49, Mark Morgan Lloyd wrote:
Lukasz Sokol wrote:
Hi Mark,
On 18/07/15 17:43, Mark Morgan Lloyd wrote:
Has anybody used FPC to decode (and generate) FSK modem tones on
a VOIP connection? Strictly V.21, don't need the complexity of
QAM etc.
i haven't
Has anybody used FPC to decode (and generate) FSK modem tones on a VOIP
connection? Strictly V.21, don't need the complexity of QAM etc.
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Mark Morgan Lloyd
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[Opinions above are the author's, not those of his employers or colleagues
between the two to e.g. merge menu structures: it takes work but
isn't particularly painful.
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an option like -k-T/some_path_here/ldscripts/elf32_sparc.x
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.
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anything like this, I suggest that it would be worth
finding under what circumstances appropriate symlinks etc. are set up.
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Ewald wrote:
On 05/14/2015 12:08 PM, Mark Morgan Lloyd wrote:
Is there a single place in the documentation where this sort of
behaviour is described and prioritised,
Your first fragment is documented on
http://www.freepascal.org/docs-html/ref/refse103.html At the bottom of
that page: `Note
Ewald wrote:
On 05/14/2015 04:17 PM, Mark Morgan Lloyd wrote:
So in effect, both an exit and a raise first execute the innermost
finally, then look for procedure end or exception block repeating as
necessary.
Yes.
These are the only cases where syntax needs to be unwound in this way
Michael Van Canneyt wrote:
On Thu, 14 May 2015, Mark Morgan Lloyd wrote:
Starting off with this fragment
begin // Start of procedure/function
try
...
if something then
exit;
...
finally
...
end
end;
My understanding is that exit magically transfers control
Jonas Maebe wrote:
On 14/05/15 13:18, Mark Morgan Lloyd wrote:
Except that- as I understand it- when the reference count is decremented
to oblivion, it will be destroyed by magic code in the context of the
block it was created in.
At which point exactly they will be destroyed
into account interfaces etc.?
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about additional options modifying the overall
behaviour.
If anybody works on this please could they link to 24789 on Mantis which
is sitting there unassigned.
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circumstances reported the address of an IP4 client formatted as
IP6. It wouldn't be easy for me to get back into that at the moment, but
I reported an ordering problem (Mantis 22605) and had my concerns partly
allayed.
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[Opinions above
a possibility that there are undetected problems.
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Michael Schnell wrote:
On 03/20/2015 11:09 PM, Mark Morgan Lloyd wrote:
Efficient implementation of coroutines requires CPU-specific code in
the RTL and possibly the compiler. However
http://www.chiark.greenend.org.uk/~sgtatham/coroutines.html suggests a
way that coroutines can be implemented
Marco van de Voort wrote:
In our previous episode, Mark Morgan Lloyd said:
Efficient implementation of coroutines requires CPU-specific code in the
RTL and possibly the compiler. However
http://www.chiark.greenend.org.uk/~sgtatham/coroutines.html suggests a
way that coroutines can
like import,
commit and update.
I wonder whether libsvn would do what you want. Google suggests that
Dmitry Boyarintsev was looking at this.
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[Opinions above are the author's, not those of his employers or colleagues
describing the header followed by
an array encompassing the data, however the actual length of the data is
unknown at compilation time which means that hardware-supported bounds
checking is less than useful.
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[Opinions above are the author's
?
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netpipes (hose and faucet) utilities.
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Graeme Geldenhuys wrote:
On 2015-03-19 08:10, Mark Morgan Lloyd wrote:
In any event the output would need to be presented in a reproducible
sequence.
A good point, but thinking about it I don't think it would be that hard.
The text output might be a bit more tricky, but not impossible.
Blue
CPU's
something to do and maybe complete 2000+ tests in a shorter period. ;-)
Thoughts?
In any event the output would need to be presented in a reproducible
sequence.
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, which would be passed to a function as a parameter.
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migration,
please do so. It is always sad to see open source code (no matter how
old) simply lost.
I was just about to start using it for something. Now I've got to start
looking for an acceptable alternative- preferably one that operates by
European rules rather than American ones.
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Michael Van Canneyt wrote:
On Sat, 14 Mar 2015, Mark Morgan Lloyd wrote:
Graeme Geldenhuys wrote:
If you haven't seen yet, Google announced that they will be closing
down Google Code. My only concern is that some niche projects used it
and that such code could be lost if not migrated
that A month later, the
[Sourceforge] restrictions were relaxed so that individual projects
could indicate whether or not their software should be blocked. I know
that FPC has users in Cuba, do they still have problems downloading from
Sourceforge?
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Mark Morgan Lloyd
markMLl .AT. telemetry.co
Graeme Geldenhuys wrote:
On 2015-03-14 10:39, Mark Morgan Lloyd wrote:
looking for an acceptable alternative- preferably one that operates by
European rules rather than American ones.
Google Code was definitely based on American rules.
I know.
Anyway, have a look at GitLab - I just bought
seconds between calls.
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Marco van de Voort wrote:
In our previous episode, Mark Morgan Lloyd said:
Are there any known issues with this sort of thing fpGetTimeOfDay
(@TimeVal, nil) on various platforms? FPC 2.6.4 and 2.7.1 seem to be OK
on x86, but on x64 (and FWIW SPARC, haven't tested others) it appears
/might/ center on the removable SD card.
BeagleBone Black has a lot going for it particularly if you can use its
high-speed supplementary processors. Otherwise the MIPS Creator C120
http://store.imgtec.com/ look interesting, but I don't know whether
anybody has FPC on it yet.
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-ijjhgjhgjhg.
Apart from that, a valiant attempt :-)
Just my 2d worth.
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that I
need to take into account?
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Michael Schnell wrote:
On 02/28/2015 08:20 PM, Mark Morgan Lloyd wrote:
Looking at
http://wiki.lazarus.freepascal.org/Multithreaded_Application_Tutorial#Initialization_and_Finalization
there are dire warnings that TThread.Create() shouldn't be overridden.
???
The Docs say Normally you
Mattias Gaertner wrote:
On Sat, 28 Feb 2015 19:20:49 +
Mark Morgan Lloyd markmll.fpc-pas...@telemetry.co.uk wrote:
[...]
Looking at
http://wiki.lazarus.freepascal.org/Multithreaded_Application_Tutorial#Initialization_and_Finalization
there are dire warnings that TThread.Create
popularisation by DEC etc. by some years.
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?
Sorry about the niggles, I'm currently trying to track down a race
condition.
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Does anybody have any example code for a program to read its own
build-id (ELF note NT_GNU_BUILD_ID), if defined? Presumably this uses
bfd.pas, which I notice is GPL rather than LGPL.
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lost the ~ (tilde) so 404s.
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since I think a couple of steps were in the
wrong order.
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.
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install Lazarus, because you don't have a GUI.
A headless system can still map a GUI to a desktop computer using X,
VNC, SSH etc.
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Björn Schreiber wrote:
Am 26.01.2015 um 21:15 schrieb Mark Morgan Lloyd:
Since nobody else has suggested anything: is the new hardware
susceptible to alignment errors in a way that the old hardware wasn't?
The question is: how can we know? The ARM documentation says only The
processor
issues on SPARC that might have included alignment problems, and on that
architecture I had to abandon 2.6.4 promptly and move onto trunk. I'm
currently testing Lazarus trunk at about 47318 is OK with FPC 2.7.1
29398 on various CPUs running Linux, can't speak for CE.
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Morgan Lloyd
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has made your
comments interesting.
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Lazarus.
I don't know whether anybody from Imagination is lurking, but I was
discussing FPC etc. with one of their directors a few months ago and he
was fairly interested.
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could switch to
an external gdb and
get rid of glibc but this proves only the point).
Noting that I asked about something related to this in fpc-devel the
other day, I assure you that I feel your pain.
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-user to emulate them where not
possible.
-8-
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that he used FPC 2.2.0, is optimisation etc. likely to have
improved enough that somebody could usefully suggest he rerun the test?
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are subtle,
sometimes not.
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to prefer
enumerating all possibilities).
Is this difference expected, and what is the best workaround?
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Ewald wrote:
On 12/11/2014 11:13 PM, Howard Page-Clark wrote:
On 11/12/2014 21:07, Mark Morgan Lloyd wrote:
I've been doing a bulk replace of 'case..else' to 'case..otherwise' to
eliminate possible ambiguities that have bitten me in the past, and have
noticed something interesting under 2.6.4
Discussion elsewhere has mentioned mORMot as a development framework. It
claims to work with both Delphi and FPC: is anybody actively using it
in anger, so that I can pass the confirmation back to where I saw this
mentioned?
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[Opinions
could be useful,
but your focus should be on preventing leaks and runaway rather than
constantly recovering from them.
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ago for my own use, which tries to
preserve the form of the variable (i.e. if it's currently True then
False is written, but if it's yes then no is written). That's
obviously massively problematic if multiple languages have to be supported.
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Mark Morgan Lloyd
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Reinier Olislagers wrote:
On 30/09/2014 22:05, Mark Morgan Lloyd wrote:
Marco van de Voort wrote:
In our previous episode, Sven Barth said:
It is indeed true that all units are initialized once the main code
Reinier: did you get as far as looking in Dynlibs for an error message
immediately
-loaded libraries (crude example: you might want to know the
compile-time name of the project of which the main program was a part).
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Michael Van Canneyt wrote:
On Tue, 30 Sep 2014, Mark Morgan Lloyd wrote:
Reinier Olislagers wrote:
On 29/09/2014 19:30, Reinier Olislagers wrote:
Re bug report: agreed. I'll raise it.
Jonas has already closed it, noting
http://msdn.microsoft.com/en-us/library/windows/desktop/ms682583%28v
it goes back to the OS (possibly via
finalisation blocks).
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that it was being invoked from
DLL/so initialisation code and raise a don't try that here exception?
Reinier: did you get as far as looking in Dynlibs for an error message
immediately after trying to connect to the database?
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[Opinions above
that initialisation (or finalisation?) blocks were
currently being run, and anything called should assume that facilities
were restricted?
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;
try
writeln(TheAnswer)
finally
FinaliseBackend
end;
writeln('Ending demo');
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Reinier Olislagers wrote:
On 29/09/2014 11:19, Mark Morgan Lloyd wrote:
Reinier Olislagers wrote:
2. In businesslayer.pas, $define CRASH to see the problem.
The code in question is:
initialization
DBLayer:=TDBInterface.Create;
finalization
DBLayer.Free;
... so probably initialization
Reinier Olislagers wrote:
On 29/09/2014 17:41, Mark Morgan Lloyd wrote:
Reinier Olislagers wrote:
On 29/09/2014 11:19, Mark Morgan Lloyd wrote:
Reinier Olislagers wrote:
2. In businesslayer.pas, $define CRASH to see the problem.
The code in question is:
initialization
DBLayer
that the same points about memory managers etc. apply. I have used
demand-loaded libraries to interface to e.g. custom processing for MIDI
or to optionally load e.g. libpcap, and once working it's reliable.
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in peace.
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and my dll
so they are definitely sharing the same memory manager. What the fb .so
uses... well... who knows, probably libc?!?!
Probably libc, but not really relevant since all the allocate/free
operations are done in the same context: the lib giveth, and the lib
taketh away :-)
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Reinier Olislagers wrote:
On 26/09/2014 21:41, Mark Morgan Lloyd wrote:
Reinier Olislagers wrote:
If using pchars: is the program doing all storage allocation for these
or is the DLL also allocating memory?
The DLL is generating those pchars.
What frees them?
Heh ;)
Ok, I think I've got
., in
both main program and DLL. Otherwise play with String[255] etc.
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Reinier Olislagers wrote:
On 26/09/2014 17:06, Mark Morgan Lloyd wrote:
For Linux, cmem before HeapTrc before cthreads before Classes etc., in
both main program and DLL. Otherwise play with String[255] etc.
Thanks. Currently not using cmem or heaptrc or cthreads.
(The regular GUI application
: 80m above sea level,
which around here are called Downs :-)
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Mark Morgan Lloyd
markMLl .AT. telemetry.co .DOT. uk
[Opinions above are the author's, not those of his employers or colleagues]
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a separate
process (not thread) to handle e.g. an instance of the Flash player. Is
this something you could do, or do you have to have fine-grained control
of multiple subroutines in the DLL?
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Mark Morgan Lloyd
markMLl .AT. telemetry.co .DOT. uk
[Opinions above are the author's, not those of his
now have enough memory that a dynamic array is adequately
efficient.
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Mark Morgan Lloyd
markMLl .AT. telemetry.co .DOT. uk
[Opinions above are the author's, not those of his employers or colleagues]
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operations.
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Mark Morgan Lloyd
markMLl .AT. telemetry.co .DOT. uk
[Opinions above are the author's, not those of his employers or colleagues]
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Considered Harmful? [Ref: EWD-1308]
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Mark Morgan Lloyd
markMLl .AT. telemetry.co .DOT. uk
[Opinions above are the author's, not those of his employers or colleagues]
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-47.html
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Mark Morgan Lloyd
markMLl .AT. telemetry.co .DOT. uk
[Opinions above are the author's, not those of his employers or colleagues]
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the dangling else problem.
There's also this usage, which has plenty of pitfalls for the unwary or
busy:
with TSomething.Create do begin
..
Free
end;
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Mark Morgan Lloyd
markMLl .AT. telemetry.co .DOT. uk
[Opinions above are the author's, not those of his employers or colleagues
:= operator. But
is there any way to handle the special case of two functions, one of
which returns a dynamic array and the other the number of elements,
without having to give them different names or parameters?
http://web.engr.oregonstate.edu/~budd/Books/leda/index.html
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Mark Morgan Lloyd
markMLl
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