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adlai_at_[hidden]

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Bill
------------------------------
Message: 2
Date: Mon, 4 Feb 2013 19:46:54 +0000
From: Adlai Shawareb <adlai_at_[hidden]>
To: "boost-users_at_[hidden]" <boost-users_at_[hidden]>
Subject: [Boost-users] How can I free memory allocated when
	deserializing with boost::archive::text_iarchive
Message-ID:
	<842DD0CD91745A48B9355924E2CF0BEA114FEF3D_at_VYTRONUS-SBS.vytronus.local>
Content-Type: text/plain; charset="us-ascii"
Hi,
Does anyone know how we can free memory that is dynamically allocated by boost::archive::text_iarchive when deserializing an archive?
We have tried using 'delete' and free() on the pointer when we finish with it, but it results in a crash.
How does Boost dynamically allocate memory, 'new', 'malloc', or other?
We tried a shared_ptr, but were getting compile errors related to the include files, and have not gone back to track that down. So if there is a simple way to free the memory that would be best for our application.
Thanks,
Adlai Shawareb
Vytronus, Inc.
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Message: 3
Date: Mon, 4 Feb 2013 14:58:49 -0500
From: Nat Linden <nat_at_[hidden]>
To: boost-users_at_[hidden]
Subject: Re: [Boost-users] in IOS, thread_info object is being
	destructed before the thread finishes executing
Message-ID:
	<CAKQaxCYQ2rDg78HEAxruya5E-8q6z-sw1jAi=G8eh_owpx4qpA_at_[hidden]>
Content-Type: text/plain; charset=ISO-8859-1
On Mon, Feb 4, 2013 at 7:38 AM, Andy Weinstein <andyw_at_[hidden]> wrote:
> This seems to happen as a result of the smart pointer reaching a zero count,
> even though it is obviously still
> in scope in the thread_proxy function which creates it and runs the
> requested function in the thread.
I feel obliged to mention a likely scenario in which a shared_ptr's
count can reach zero prematurely, namely when multiple shared_ptrs are
created from the same raw (native) pointer, e.g.
Object* myobj = new Object();
shared_ptr<Object> sp1(myobj);
shared_ptr<Object> sp2(myobj);
sp1's count will be 1, as will sp2's. When either shared_ptr's count
goes to zero, myobj will be destroyed, even if the other shared_ptr is
still "live."
> I should also note that when we did catch this happening the trap, we saw
> the destructor for
> ~shared_count appear twice consecutively on the stack in Xcode source. Very
> doubleweird.
Multiple shared_count instances make me suspicious of a scenario like the above.
------------------------------
Message: 4
Date: Mon, 4 Feb 2013 15:08:14 -0500 (EST)
From: Jeremiah Willcock <jewillco_at_[hidden]>
To: boost-users_at_[hidden]
Subject: Re: [Boost-users] Undirected version of dijkstra shortest
	path on directed graph.
Message-ID: <alpine.LRH.2.03.1302041507360.50272_at_[hidden]>
Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed
On Mon, 4 Feb 2013, Jupp Tscheak wrote:
> Hello BGL specialists.
> 
> Is it possible to use an undirected version of dijkstra shortest path function on an adjacency_list which Directed
> template parameter is set to bidirectional?
Yes, as long as the edge weights are the same in both directions.  If the 
weights match, the directed Dijkstra's algorithm will produce the same 
effect as the undirected one.
-- Jeremiah Willcock
------------------------------
Message: 5
Date: Mon, 4 Feb 2013 20:09:11 +0000 (UTC)
From: Algocoders <algocoders_at_[hidden]>
To: boost-users_at_[hidden]
Subject: Re: [Boost-users] Crediting the Work of Others
Message-ID: <loom.20130204T210248-956_at_[hidden]>
Content-Type: text/plain; charset=us-ascii
Bill Buklis <boostusr <at> pbjzone.com> writes:
> Only the last link for Chapter 11 actually works and there aren't any 
> acknowledgements presented in that pdf.
Fresh links are :
-----------------------------------------
Foundation of Algorithms in C++11 Volume 1(Third Edition) : 
Using and Extending C++11, Boost and Beyond
Table of Contents 
http://algocoders.com/sites/default/files/toc_foa_third_edition.pdf
Sample Chapter 7 (Type Functions)
http://algocoders.com/sites/default/files/chapter7_foa_third_edition.pdf
License Information
http://algocoders.com/sites/default/files/license_foa_third_edition.pdf
-----------------------------------------
C++11 Algorithms Volume 1(Second Edition) : Using and Extending C++11, Boost and
Beyond
Table of Contents :
http://www.algocoders.com/sites/default/files/toc_algo_2nd.pdf
Sample Chapter 1(Simulating for-loop iteration)
http://www.algocoders.com/sites/default/files/chap1_algo_2nd.pdf
---------------------------------------------
For more details, please visit:
http://www.algocoders.com/article/books
Cheers,
Algocoders
------------------------------
Message: 6
Date: Mon, 04 Feb 2013 15:24:08 -0500
From: Tim Moore <tim_at_[hidden]>
To: <boost-users_at_[hidden]>
Subject: Re: [Boost-users] How can I free memory allocated when
	deserializing with boost::archive::text_iarchive
Message-ID: <c9cb14bbc5ce4d352ef0caea7137b1ba_at_[hidden]>
Content-Type: text/plain; charset=UTF-8; format=flowed
On 2013-02-04 14:46, Adlai Shawareb wrote:
> Hi,
>
> Does anyone know how we can free memory that is dynamically allocated
> by boost::archive::text_iarchive when deserializing an archive?
>
> We have tried using 'delete' and free() on the pointer when we finish
> with it, but it results in a crash.
>
> How does Boost dynamically allocate memory, 'new', 'malloc', or 
> other?
>
> We tried a shared_ptr, but were getting compile errors related to the
> include files, and have not gone back to track that down. So if there
> is a simple way to free the memory that would be best for our
> application.
>
> Thanks,
>
> Adlai Shawareb
>
> Vytronus, Inc.
The memory allocation is described here:
http://www.boost.org/doc/libs/1_52_0/libs/serialization/doc/serialization.html#constructors
I have no problem calling delete on any pointer to a object constructed 
when deserializing an archive.
Nor have I had any problem deserializing to a shared_ptr or other smart 
pointer types.
Perhaps you could provide a small self-contained example demonstrating 
your problem ??
Tim
------------------------------
Message: 7
Date: Mon, 4 Feb 2013 16:04:44 -0500
From: Christian Henning <chhenning_at_[hidden]>
To: boost-users_at_[hidden]
Subject: [Boost-users] [mpl::integral_c] Compiler Error with Visual
	Studio	2010
Message-ID:
	<CAOayk6ffrypXcHUy3L=CERm2p316BbysGp++oPHrBUssuzTUhw_at_[hidden]>
Content-Type: text/plain; charset=ISO-8859-1
Hi there,
shouldn't the following work:
#include <boost\gil\gil_all.hpp>
using namespace std;
using namespace boost;
int main()
{
    typedef mpl::integral_c< unsigned char
                           , numeric_limits< unsigned char >::max()
                           > my_max_value_t;
    return 0;
}
Visual Studio 2010 gives me:
error C2975: 'N' : invalid template argument for
'boost::mpl::integral_c', expected compile-time constant expression
I'm a little surprised that this isn't working.
Thanks,
Christian
------------------------------
Message: 8
Date: Mon, 4 Feb 2013 14:11:18 -0700
From: Nathan Crookston <nathan.crookston_at_[hidden]>
To: boost-users_at_[hidden]
Subject: Re: [Boost-users] [mpl::integral_c] Compiler Error with
	Visual	Studio 2010
Message-ID:
	<CAMb0s=1eg-2q=52M+zFJdNqgUDKGDDqoTep54AWxb76gUQ3WQQ_at_[hidden]>
Content-Type: text/plain; charset="iso-8859-1"
Hi Christian,
Christian Henning wrote:
> Hi there,
>
> shouldn't the following work:
>
> #include <boost\gil\gil_all.hpp>
>
> using namespace std;
> using namespace boost;
>
> int main()
> {
>     typedef mpl::integral_c< unsigned char
>                            , numeric_limits< unsigned char >::max()
>                            > my_max_value_t;
>
>
>     return 0;
> }
>
The good news is, I think it should work in the future when constexpr is
more widely available.  On compilers that aren't there yet, you need to use
something with a static constant instead.
Try:
#include <boost/gil/gil_all.hpp>
#include <boost/integer_traits.hpp>
using namespace std;
using namespace boost;
int main()
{
  typedef mpl::integral_c< unsigned char
                         , integer_traits< unsigned char >::const_max
                         > my_max_value_t;
          return 0;
}
HTH,
Nate
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