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Boost Serialization now results in a compiler error - I have a fix, but I'm still unsure as to the cause
by Lasse Laursen 10 May '13

10 May '13

Dear boosters, I work with Cinder, creating an audio mixing app. Having recently reached a milestone, I've upgraded from Vs2010 to Vs2012 as well as to the latest Cinder (0.8.5) which also upgraded boost to 1.53. While porting some code over that uses Serialization, I suddenly provoked the following compiler error: error C4308: negative integral constant converted to unsigned type pointing me at the following code in in the boost print.hpp: template <class T> struct print : … [View More]

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Redefining new, to detect memory leaks, causes issues in boost
by Lasse Laursen 10 May '13

10 May '13

Hellos, I recently upgraded to vs2012 and am making liberal use of its leak detection described here: http://msdn.microsoft.com/en-us/library/x98tx3cf.aspx However, I'm running into a spot of trouble. I rely on the C++ style new commands to allocate memory and as such, I make use of redefining this call in order to get a specific file and line, at the end of my programs execution, to where I allocated memory which is leaking. It's super effective! According to the link above, the new … [View More]

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Access violation while deleting ssl socket
by Martinell, Dan F 10 May '13

10 May '13

I just upgraded the boost libraries from 1.43 to 1.53 and switched from a 32bit build to a 64bit build. The code worked fine before the upgrade but in 1.53 I am getting an out of access violation while trying to delete the sslSocket. Here is a sample of the code: ssl::stream<ip::tcp::socket>* sslSocket = (ssl::stream<ip::tcp::socket>*) NULL; sslSocket = new ssl::stream<ip::tcp::socket>(io_service, ctx); sslSocket->lowest_layer().connect(*endpoint_iterator, error); … [View More]

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UDP: socket::open does not take an endpoint
by Chris Stankevitz 08 May '13

08 May '13

Hello, boost::asio::ip::udp::socket offers two ways to open: a) pass io_service and endpoint to the socket::socket b) pass io_service to socket::socket, then call socket::open === The UDP async server example uses method (a): boost::asio::ip::udp::socket Socket( IoService, boost::asio::ip::udp::endpoint(boost::asio::ip::udp::v4(), 13)); === Question 1: Why doesn't boost UDP allow me to use method (b) with an endpoint? For example, this is impossible: boost::asio::ip::udp::socket … [View More]

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Interprocess : appending data
by Oodini 08 May '13

08 May '13

Hello, I create a shared_memory_object, truncate it to set its size, and then create a mapped_region. I would like to know it would be possible to append new data, by applying a new truncation. Also, is it possible to have a second name pointing in the same memory, but with an offset ? Thanks.

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weird problem with mutexes on boost::interprocess
by Hernán Leoni 08 May '13

08 May '13

It seems we found a weird bug with boost interprocess, some internal problem on the scoped_lock is generating a deadlock. A simple correct usage like void foo() { scoped_lock<t_mutex> lock(amutex); ..... } is producing the deadlock when running 100 concurrent processes after changing to void foo() { amutex.lock(); ..... amutex.unlock(); } the problem disappeared the code on scoped_lock looks correct, and works just fine with a lower load, so, I … [View More]

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mpl::c_str<mpl::string<>> compile error
by Olaf Peter 07 May '13

07 May '13

Hello, the code here doesn't compile: #include <boost/mpl/string.hpp> #include <iostream> namespace mpl = boost::mpl; typedef mpl::string<'h','e','l','l','o',' ','w','o','r','l','d'>::type my_hello; int main() { std::cout << mpl::c_str<my_hello>::value << '\n'; std::cout << BOOST_MPL_LIMIT_STRING_SIZE << '\n'; } As usual, the example from docs works. The error is: $ LANG=en g++ t.cpp -o t && ./t t.cpp:6:64: error: wrong number of … [View More]

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[Graph] undefined trait functions
by Miklós Tóth 07 May '13

07 May '13

Hi! I've a problem, with Boost Graph Library and gcc 4.7. I have a legacy graph representation that i like to wrap with a graph adaptor to access boost graph algorythms. 1: I've created a graph adaptor, that contains my legacy graph. This is a simple struct: struct legacy_graph_adaptor { legacy_graph_adaptor(const legacy_graph& g) : graph(const_cast<legacy_graph& >(g)) { } legacy_graph& graph; }; 2: Next step was a vertex_iterator and an edge_itreator, … [View More]

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Re: [Boost-users] Boost-users Digest, Vol 3438, Issue 1
by John M. Dlugosz 07 May '13

07 May '13

On 5/7/2013 4:09 AM, boost-users-request-at-lists.boost.org |Boost/Allow to home| wrote: > From: Oodini<svdbg___(a)free.fr> > Subject: [Boost-users] Interprocess : appending data > Message-ID: > <2058964480.133622258.1367856611110.JavaMail.root(a)zimbra59-e10.priv.proxad.net> > > Hello, > > I create a shared_memory_object, truncate it to set its size, and then create a mapped_region. > > I would like to know it would be possible to append new data, … [View More]

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[Boost.AutoBuffer] discussion
by John M. Dlugosz 07 May '13

07 May '13

On 5/6/2013 9:24 AM, boost-users-request-at-lists.boost.org |Boost/Allow to home| wrote: > Message: 4 > Date: Mon, 06 May 2013 14:28:34 +0200 > From: Thorsten Ottosen<thorsten.ottosen(a)dezide.com> > To:boost-users@lists.boost.org > Subject: Re: [Boost-users] [Boost.AutoBuffer] discussion > > My newer version has more explicit control of the initial constructed > object. > How might I get your current version? —John

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