June 2002 - Boost-users - lists.preview.boost.org

not enough space for thread data
by Andreas Olsson 26 Jun '02

26 Jun '02

Hi As you can see in the subject this is a newbie problem. I tried the example code "Simple usage of boost::thread" (http://www.boost.org/libs/thread/doc/thread.html) with MSVC 6.0 and ended up with an error message: R6016 - not enough space for thread data Are there any settings that must be set before this code will work? Regards Andreas

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compilation problem on solaris-gcc with stlport
by Virginia Volk 25 Jun '02

25 Jun '02

Does anyone know why I am seeing problems? I am trying to compile boost on a SunOS 5.6 with gcc 2.95.3, using stlport 4.5.3. I use the following cmd: bjam_solaris -a "-sTOOLS=gcc-stlport" "-sBuild= debug release <stlport-iostream>on" "-sBUILD=debug release <runtime-link>static/dynamic" "-sSTLPORT_ROOT=/core/elements/cots/stlport-4.5.3" And I get errors such as: In file included from /core/elements/cots/stlport-4.5.3/stlport/stl/_iterator_base.h:38, from /core/elements/cots/stlport-4.5.3/stlport/stl/_algobase.h:55, from /core/elements/cots/stlport-4.5.3/stlport/stl/_list.h:34, from /core/elements/cots/stlport-4.5.3/stlport/list:35, from libs/regex/build/../src/c_regex_traits.cpp:27: /core/elements/cots/stlport-4.5.3/stlport/stl/type_traits.h: At top level: /core/elements/cots/stlport-4.5.3/stlport/stl/type_traits.h:68: template with C linkage /core/elements/cots/stlport-4.5.3/stlport/stl/type_traits.h:80: template with C linkage /core/elements/cots/stlport-4.5.3/stlport/stl/type_traits.h:91: template with C linkage /core/elements/cots/stlport-4.5.3/stlport/stl/type_traits.h:92: template with C linkage /core/elements/cots/stlport-4.5.3/stlport/stl/type_traits.h:213: template with C linkage ...failed gcc-C++-action libs/regex/build/bin/libboost_regex.a/gcc-stlport/release/runtime-link-d ynamic/regex.o... gcc-C++-action gcc-C++libs/regex/build/bin/libboost_regex.a/gcc-stlport/release/runtime gcc-C++-link-dynamic/regex_debug.o In file included from /core/elements/cots/stlport-4.5.3/stlport/stl/_alloc.h:64, from /core/elements/cots/stlport-4.5.3/stlport/memory:28, from /core/elements/cots/stlport-4.5.3/stlport/stl/_string.h:23, from /core/elements/cots/stlport-4.5.3/stlport/string:42, from /core/elements/cots/boost-1.28.0/boost/regex/config.hpp:86, from libs/regex/build/../src/regex_debug.cpp:26: /core/elements/cots/stlport-4.5.3/stlport/stl/_threads.h:207: template with C linkage /core/elements/cots/stlport-4.5.3/stlport/stl/_threads.h:406: parse error before `&' /core/elements/cots/stlport-4.5.3/stlport/stl/_threads.h:407: parse error before `&' /core/elements/cots/stlport-4.5.3/stlport/stl/_threads.h:407: `_STL::_STLP_mutex::operator =(...)' must take exactly one argum /core/elements/cots/stlport-4.5.3/stlport/stl/_threads.h:408: confused by earlier errors, bailing out Thank you, Virginia

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[BGL] Newbie problems with property_map interface
by Erik Arner 24 Jun '02

24 Jun '02

Hi, I'm just starting to learn how to use BGL, and have a few questions. Help would be much appreciated. I'm currently trying to understand the add_vertex function where properties can be assigned to the vertices as the graph is constructed. The only info I've managed to find on the website is this: --------- vertex_descriptor add_vertex(const VertexProperties& p, adjacency_list& g) Adds a vertex to the graph with the specified properties. Returns the vertex descriptor for the new vertex. --------- Does anybody have any examples on how to use this? More specifically, consider the following. I want to construct a graph dynamically, i.e. the graph will grow and shrink during runtime. Let's say I have a Node class with one member (which I want to represent as an "internal property") as follows: class Node { public: std::string name; }; And an Edge class, again with internal properties: class Edge { public: int weight1; double weight2; }; Then my graph object would look something like this, right? typedef adjacency_list < vecS, vecS, directedS, property < vertex_name_t, std::string >, property <edge_weight_t, int, property <edge_weight2_t, double> > > Graph; Where do I go from here? That is, if I have a Node or Edge object in my hand, with members as specified above, how do I add it to the structure (provided that additional info is available regarding which Nodes to connect with the Edge)? I would be very grateful for any help on this. Also, pointers to good (online) tutorials and documented examples of using the BGL, aside from the ones on boost.org, would be appreciated. Thanks, Erik

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VC7 + STLPort (and other assorted questions)
by juxtaposenj 24 Jun '02

24 Jun '02

Is there any way to force boost to build using VC7 and STLPort? I tried the obvious (settings TOOLS=msvc-stlport, and setting MSVC_DIR=<path to VC7>), but I got a ton of compiler errors that way. I ask because VC6 + STLPort 4.5.3 has some serious issues with the the VC6 compiler, causing internal compiler errors (very bad :P). Also, I keep hearing mention of a way to build the boost libs from inside the VC IDE (and the ability to build them for static linking), but I can't find project files, or a Jam option to build static. What am I missing? This is all Boost 1.28.0. Matt Holmes

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regex, stringbuf and MSVC++ 6
by the_d.geo 24 Jun '02

24 Jun '02

What follow is the descriptions of a possible bug. Unfortunately I'm using MSVC++ and ran into some unexpected behavior using boost::regex_format and a stringbuf. I compiled 1.27.0 without the /Oa flag as suggested in the installation notes. In summary, this works: stringbuf line; ... string tmp = line.str(); if (regex_match(tmp, matchInfo, linerx)) { string name = regex_format(matchInfo, "$1"); } but this doesn't: stringbuf line; ... if (regex_match(line.str(), matchInfo, linerx)) { string name = regex_format(matchInfo, "$1"); } By "doesn't work" I mean that 'name' has spurious characteres. If this might be a bug, let me know and I'll track it down to a small, compilable example.

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Trouble with tuple
by marshjray 24 Jun '02

24 Jun '02

Using 1.28.0, in source file "boost/tuple/detail/tuple_basic_no_partial_spec.hpp" (line 651), notice the transposition of <T5> and <T6>: return make_tuple(detail::assign_to_pointee<T1>(&t1), detail::assign_to_pointee<T2>(&t2), detail::assign_to_pointee<T3>(&t3), detail::assign_to_pointee<T4>(&t4), detail::assign_to_pointee<T6>(&t5), <---- detail::assign_to_pointee<T5>(&t6)); <---- Looks like a typo? Thanks, - Marsh

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Boost::Signal ?
by srivatsan raghavan 21 Jun '02

21 Jun '02

hi all, i was looking thru the boost cvs recently, and i saw a signals & slots implementation in the cvs, but as far as i can tell, it's not a part of the standard boost libs.. anyone know it's fate, and if there are plans to include it in the next boost release? __________________________________________________ Do You Yahoo!? Yahoo! - Official partner of 2002 FIFA World Cup http://fifaworldcup.yahoo.com

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Thread Priority
by Tobias McNulty 19 Jun '02

19 Jun '02

Is getting/setting thread priority implemented in boost threads? I didn't see any mention of it on the web site, other than the behavior of mutexes under Priority Driven scheduling. Thanks, Toby -- Tobias McNulty Data Description, Inc. 840 Hanshaw Road, Suite 9 Ithaca, NY 14850 Phone: (607) 257-1000 E-mail: tmcnulty(a)datadesk.com Web: www.datadesk.com

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scoped_lock
by tmcnulty1982 19 Jun '02

19 Jun '02

boost::recursive_mutex::scoped_lock is crashing with some unknown exception in its destructor, no matter whether the lock is locked or not. Has anyone else experienced this problem and possibly have a solution? Thanks, Toby

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MS VS 6: passing boost::shared_ptr<T> to a dll function
by lognez 19 Jun '02

19 Jun '02

Hi all, I am trying to pass a smart pointer (boost::shared_ptr<T>) as an argument to a function that is implemented by a dll and called by an executable, but whenever I execute the application, it goes into a loop, no matter what the type of T is. When the function is implemented in the exe or when the function is called from inside the dll it works fine. Does anybody have a clue what could be happening? BTW, I'm not implicating a bug in boost, I know that it could as well be a MS VC++ bug but I would just like to know how this comes and how I can solve it. Corno PS I've tried to post this message directly to the newsgroup but that did not work. Is that news group perhaps read only?

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