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

RE: [Boost-users] Re: Build+Install+/Zc:wchar_t in Visual studio builds
by Ben Hutchings 31 Oct '03

31 Oct '03

Edward Diener <eddielee(a)tropicsoft.com> wrote: > John Maddock wrote: > > Guys, > > > > We could of course create a new build variant to handle this, but > > with 8 regex lib/dll variants already I'm not keen to add another 8 > > (apart from anything else testing already takes too long). > > I think you have to do this John if you want to support both the C++ > wchar_t and the MS wchar_t in Boost libraries. Although there are > VC++ predefined macros, _WCHAR_T_DEFINED and _NATIVE_WCHAR_T_DEFINED, > which are defined when /Zc:wchar_t is used, they are also stupidly > defined, according to the documentation, when typedef unsigned short > wchar_t is used ( talk about idiotic MS decisions ). That appears to be a documentation bug. I checked this in VC++ 7.1 and _NATIVE_WCHAR_T_DEFINED is not defined by <cstddef>. There is no sign of a #define _NATIVE_WCHAR_T_DEFINED in the headers for version 7.0 or 7.1. > So Boost needs to use a macro which the end-programmer must define > which tells whether or not /Zc:wchar_t is being used or not, and > create another set of libraries accordingly. Even in the absence of a macro, this test works: #include <cstddef> #include <iostream> #include <ostream> #include "boost/type_traits.hpp" int main() { std::cout << "/Zc:wchar_t was "; if (!boost::is_same<wchar_t, __wchar_t>::value) std::cout << "not "; std::cout << "used\n"; }

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RE: [Boost-users] vc++
by Ben Hutchings 31 Oct '03

31 Oct '03

adel.essafi <adel.essafi(a)laposte.net> wrote: > is it possible to compile boost project directly with vc++ 6.0 without > using commande lines. if yes how? Yes - in the IDE, create a "makefile" project and enter the command lines and targets in the project settings. It would be nice to have project files included in the distributed source, but unfortunately the file format is different for every IDE and for every different version of the Visual C++ IDE so it would be difficult to keep them all up-to-date. Ben.

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[BLL] How to search in a list for an object comparing a data member?
by Gianluca Silvestri 31 Oct '03

31 Oct '03

Hi all, What I want to achieve is a code similar to this: struct Foo { int fDataMember;} int main() { std::vector<Foo> foos; Foo fo; std::find_if(foos.begin(), foos.end(), _1->fDataMember == fo.fDataMember); //<-- won't compile; } I know I could use a functor object but this is just an example for a more general need. Thanks, Gianluca

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vc++
by adel.essafi 30 Oct '03

30 Oct '03

hi list is it possible to compile boost project directly with vc++ 6.0 without using commande lines. if yes how? thanks Accédez au courrier électronique de La Poste : www.laposte.net ; 3615 LAPOSTENET (0,34/mn) ; tél : 08 92 68 13 50 (0,34/mn)

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Linker problem using boost::regex with VC6.5
by Sven Van Echelpoel 29 Oct '03

29 Oct '03

Hi, I'm having a strange problem when I try to include boost::regex in my project (VC6.5 on Win2K). I'm not using Build to build a separate regex dll but rather include the source files directly in the project (or rather in a small utility static library). I've defined BOOST_REGEX_STATIC_LINK to avoid __declspec( dllimport ) / __declspec( dllexport ). Although everything compiles just fine the linker complains that it cannot find the library boost_regex_vc6_mdsd.lib. Further investigation revealed that it is actuallty listed somewhere as an additional default library (the linker outputs this when you switch on link progress messages). Searching through the sourcecode for #pragma comment( lib, ... ) and #pragma comment( linker, ... ) directives came up empty as did a search for boost_regex_vc6_mdsd.lib in all sources and headers. I got it to link by letting the linker ignore boost_regex_vc6_mdsd.lib. Even so I still would like to know where this is comming from. Any ideas? Sven

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RE: [Boost-users] Linker problem using boost::regex with VC6.5
by Sven Van Echelpoel 29 Oct '03

29 Oct '03

Sven Van Echelpoel wrote: [...] > Are you sure that that's defined for all translation units that use or > implement Boost.Regex? Yep. Double checked it now and it is defined at the project level for every project [...] >> Searching through the sourcecode for >> #pragma comment( lib, ... ) and #pragma comment( linker, ... ) >> directives came up empty as did a search for boost_regex_vc6_mdsd.lib >> in all sources and headers. > > It's in "boost/regex/v3/regex_library_include.hpp". Found it. I can now see I need to define the guard macro BOOST_REGEX_NO_LIB to disable the auto-linking. Doing so makes everything build just fine. Thanks, Sven

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CEST timezone conversion, boost date_time
by Erik Thiele 29 Oct '03

29 Oct '03

hi. i am trying to convert between UTC and CEST/CET (Europe/Berlin) i don't find documentation or suitable functions in the Wiki, the examples or the documentation. also i don't understand the sourcecode of the time zone stuff. but i found that eu_dst_trait exists, but don't know what that is and how to use it. any ideas? cu & thx erik -- Erik Thiele

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Any thoughts on transparent marshalling?
by Hurd, Matthew 28 Oct '03

28 Oct '03

I wish to do some transparent marshalling... That is, via a policy, or some such, either call a function / functor returning a void or put stuff on a message queue for transportation. This is strictly asynch stuff, hence the void result or putting the message in the ether. The message queues I have in mind are tibrv, udp, tcp, shared mem, email, internal process queue... I see the serialization w.i.p. library will be useful here. Any tips on some useful boost libs / techniques to do this? Regards, Matt Hurd hurdm(a)sig.com +61.2.8226.5029

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Newbie uBLAS question
by J. Scott Pendergrass 28 Oct '03

28 Oct '03

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RE: [Boost-users] Linker problem using boost::regex with VC6.5
by Ben Hutchings 28 Oct '03

28 Oct '03

Sven Van Echelpoel wrote: > I'm having a strange problem when I try to include boost::regex in my > project (VC6.5 on Win2K). I'm not using Build to build a separate > regex dll but rather include the source files directly in the project > (or rather in a small utility static library). I've defined > BOOST_REGEX_STATIC_LINK to avoid __declspec( dllimport ) / __declspec( > dllexport ). Are you sure that that's defined for all translation units that use or implement Boost.Regex? > Although everything compiles just fine the linker complains that it > cannot find the library boost_regex_vc6_mdsd.lib. Further > investigation revealed that it is actuallty listed somewhere as an > additional default library (the linker outputs this when you switch > on link progress messages). Searching through the sourcecode for > #pragma comment( lib, ... ) and #pragma comment( linker, ... ) > directives came up empty as did a search for boost_regex_vc6_mdsd.lib > in all sources and headers. It's in "boost/regex/v3/regex_library_include.hpp". > I got it to link by letting the linker ignore > boost_regex_vc6_mdsd.lib. > Even so I still would like to know where this is comming from. Any > ideas? I know I had some kind of problem with the above-mentioned header generated the wrong library name when I first started using Boost.Regex so I disabled the header by defining its guard macro before including "boost/regex.hpp". However, I removed that just now and didn't have any problems. Have you created your own project definition which uses a different library name? It's probably easier just to use the makefile (vc6.mak) in Visual Studio. You can do this by selecting "Insert Project into Workspace", selecting "vc6.mak" from the build directory, and thus creating a project that calls nmake on the makefile. Then you just need to edit the project settings to specify what the target names are for each configuration.

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OpenBSD
by Adam Olsen 28 Oct '03

28 Oct '03

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Has anyone had any luck compiling boost_regex on OpenBSD 3.3? If so, how did you do it? Thanks, Adam Olsen -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.3 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQE/nDKyiTy1B31kxaoRAhhBAJ98+oS83jDY3kwgauPV0HN9HG5XOgCgwlpx JI8Bhk2EyKrgBn4fX72dBSk= =Owcv -----END PGP SIGNATURE-----

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[spirit][newbie] few questions
by GIE 27 Oct '03

27 Oct '03

Hello! What is "proper way" of implementing result value of parser, have i implement new parser or can (and how?) i use grammar construct with user defined result value that can be passed to attached action (for ex. matched GUID returning)? What is performance penalty for using vectors (they need realloc, don't they) in ast trees? And is there anyway to store scanner defined result in tree, besides using user-specified value in node_val_data and type casting it to specific type depending of node id? Thanks. -- With best regards, GIE.

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RE: [Boost-users] Boost Software License: redistribute modified works?
by Ben Hutchings 27 Oct '03

27 Oct '03

Steve M. Robbins <steven.robbins(a)videotron.ca> wrote: > I've a question for the drafters of the Boost Software > License - Version 1.0 - August 17th, 2003. I am not one of them, but I can give you some answers anyway. > Put yourself in the position of someone who wants to redistribute > a modified version of Boost. For example, the linux distributors > like Debian. > > The license begins with the permission grant: > > Permission is hereby granted, free of charge, to any person or > organization obtaining a copy of the software and accompanying > documentation covered by this license (the "Software") to use, > reproduce, display, distribute, execute, and transmit the > Software, and to prepare derivative works of the Software, and to > permit third-parties to whom the Software is furnished to do so, > all subject to the following: > > [... a restriction and a disclaimer paragraph ...] > > As I read this, "the Software" means "the unmodified tar or zip > file obtained from boost.org". Is that correct? No, it means whatever software says the licence applies to it. This licence does not (yet) apply to all of Boost. All parts of it are supposed to come with a licence that meets certain requirements, listed at <http://www.boost.org/more/lib_guide.htm#License>. The licence you are reading is supposed to be a standard licence that meets these requirements. There is a fuller explanation at <http://www.boost-consulting.com/boost/more/license_info.html>. > I'm permitted to "prepare derivative works of the Software", but the > license doesn't specify what I may do with my derivative works. > > Clearly, I may distribute "the Software", but may I distribute > the derivative work? I think that may be legally implicit, but I am not a lawyer. > Some licenses (e.g. the BSD and the GPL) make it clear that the terms > apply to both the software and to derivative works. Shouldn't the > boost license do likewise? Even if it is legally implicit, I can see that it would be a good idea to clarify it. Since it doesn't specify have a choice-of-law clause it could be interpreted according to any country's contract law and things that are implicit according to US law might not be so elsewhere. Ben.

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compiling as a framework
by Avram Aelony 27 Oct '03

27 Oct '03

This may be a naive question, but on Mac Os X one can compile other libraries as a "framework", for example I can use the OpenGL library by compiling as follows: % g++ mytest.cpp -framework OpenGL Is it possible to be able to do the same style compilation for Boost? Ideally, something like this would be nice... % g++ mytest.cpp -framework Boost Incidentally, although I have installed Boost with bjam, simply compiling a Hello World style program that uses a Boost function gives me errors... An example would be great. thanks, Avram

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directory_iterator TypeLoadException
by Sergey K. 26 Oct '03

26 Oct '03

Hello, I tried to run SimpleLs program, but got a TypeLoadException at the line below. I use boost-1.30.2, MSVC++7.0 Any idea what could be causing the problem? for ( fs::directory_iterator dir_itr( full_path ); dir_itr != end_iter; ++dir_itr ) // exception thrown here Output: In directory: C:\src\cpp Unhandled Exception: System.TypeLoadException: Could not load type boost.filesystem.dir_itr_imp from assembly Filesystem Demo, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null. at boost.==(shared_ptr<boost::filesystem::directory_iterator::dir_itr_imp>* a, shared_ptr<boost::filesystem::director y_iterator::dir_itr_imp>* b) at boost.filesystem.!=(directory_iterator* x, directory_iterator* y) in c:\lib\cpp\boost-1.30.2\boost\filesystem\oper ations.hpp:line 93 at main(Int32 argc, SByte** argv) in c:\src\cpp\boost\filesystemdemo\simplels.cpp:line 44

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Interval Library on MIPS
by David A. Greene 26 Oct '03

26 Oct '03

Hi, I've been attempting to use the interval library on a MIPS/IRIX machine without luck. The problem is that there is no native rounding support and we don't have a C99 environment. I'm getting "Please specify rounding control mechanism" errors from the preprocessor. The thing is, I don't need a rounding mode. I simply want to use intervals of type int. I could understand the error if I was trying to use floating-point intervals but shouldn't I be able to specify intervals that don't require rounding? Or even specify intervals with a policy that ignores rounding? Has anyone run into this problem before? Is there a workaround? -Dave

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MS C++ 7.1 warning C4244 (spirit)
by GIE 24 Oct '03

24 Oct '03

Hello! Is there any way to avoid this warning? =========Beginning of the citation============== ------ Build started: Project: [...], Configuration: Debug Win32 ------ Compiling... [...].cpp BOOST_DIR\boost\spirit\core\primitives\impl\pri mitives.ipp(62) : warning C4244: 'initializing' : conversion from '__w64 int' to 'int', possible loss of data BOOST_DIR\boost\spirit\core\primitives\primitiv es.hpp(190) : see reference to function template instantiation 'RT boost::spirit::impl::string_parser_parse<result_t,boost::unwrap_reference<T> ::type,const ScannerT>(IteratorT,IteratorT,const ScannerT &)' being compiled with [ RT=result_t, T=const char *, ScannerT=boost::spirit::scanner<std::basic_string<char,std::char_traits<char ,std::allocator<char>>::iterator,boost::spirit::scanner_policies<boost::spi rit::no_skipper_iteration_policy<boost::spirit::scanner_policies<boost::spir it::iter_policy_t>::iteration_policy_t>,boost::spirit::scanner_policies<boos t::spirit::iter_policy_t>::match_policy_t,boost::spirit::scanner_policies<bo ost::spirit::iter_policy_t>::action_policy_t>>, IteratorT=boost::unwrap_reference<const char *>::type ] [...] Linking... Build Time 0:04 Build log was saved at "file://PROJECT_DIR\Debug\BuildLog.htm" [...] - 0 error(s), 1 warning(s) ---------------------- Done ---------------------- Build: 1 succeeded, 0 failed, 0 skipped =========The end of the citation================ -- With best regards, GIE.

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Can't build or install
by James Buchanan 24 Oct '03

24 Oct '03

I managed to run bjam -sTOOLS=mingw, and it seemed to do something for 10 minutes or so, but that was it. I found some of the libraries, such as the Regex project's libraries in the debug and release folders in static and dynamic link form, but other libraries didn't seem to build. Where are they, and how do I install the libraries in my library directory? I'd like all libraries except the Python libraries installed. Many thanks for your help, James

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Re: [OT a bit] Condition variable and const-correctness
by Weston Markham 23 Oct '03

23 Oct '03

This might actually be slightly less off topic than the previous post, because it parallels the way that I think about that condition::wait method... Anyway, I'm curious what people think about: void perverse_strcpy( const char *src, char *dest, const char *done // note const ) { while (!done) { // note we expect change *dest++ = *src++; } } The caller can do something like: src = "hello world"; dest[strlen(src)] = 1; // store a nonzero value perverse_strcpy(src, dest, dest+strlen(src)); Yes, its a kinda stupid and, well, dubious function. However, the point is that "const char *" simply means that the pointer points to a char that can only be accessed as a "const char" through that pointer. It does not imply that the referenced thing is physically const. Nor does it imply that the referenced thing is logically const. (meaning that non-const methods can still be called on an object that has a "const Foo *" pointing to it; they simply can't be called through that pointer.) Does this run counter to what people believe the semantics of "const char *" to be? Are compilers permitted to optimize out the check of "!done" based on const-ness? (IIRC, they actually may in some related examples, if "src" and "dest" are types that should not alias to "done"; but this is not the case here) Is there any undefined or implementation-defined behavior of the above code? As separate aside, I believe that "physically const" refers specifically to a property of an object, say, the string constant "x". It is the reason why: const_cast<char*>("x")[0] = 'y' ... results in undefined behavior. The const keyword _could_ be used on an interface to indicate that a method will not produce undefined behavior when invoked on an instance that is actually physically const. This is different from using the const keyword to identify methods which maintain "logical constness". The latter meaning (whatever that may be) is what I believe is used in practice. (and the language is, I believe, designed to support this other meaning) Of course, I'm not, in some cases, sure what that meaning is! I suspect, by the way, that different people may have different ideas of how the const keyword should be applied to interfaces in practice. Each person might have an internally consistent viewpoint, but there may still be several mutually incompatible views. (I'm pretty sure that there are at least a few. I hope they are not as "notoriously arbitrary" :) as naming conventions!) Lastly, just because it amuses me: C++ Shrink: How does that const Foo * make you feel? Programmer: I feel frustrated, doc! I want to change things, but I can't. I know that the other coders do things that I can't; I can see all the changes that they make! Why not me? C++ Shrink: Hmm. Interesting. Weston Markham

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RE: [Boost-users] Re: Condition variable and const-correctness
by Weston Markham 22 Oct '03

22 Oct '03

Mark, (and group) I may not have explained myself clearly in my original message. Your example ThreadedQueue::bMessageAvaliable() const actually demonstrates _exactly_ why I feel that condition::wait should be const. Your method modifies something internally (a boost::mutex; I have no argument whatsoever with the view that locking a mutex changes its state). Then it does some other things that don't affect its const-ness. Then it undoes the modifications it originally made. (By unlocking the mutex) A caller of this function should not care that these things go on internally. In this sense, it is logically const. I would also add that the caller of the function does not care that the precise behavior (say, when it returns, or in other examples, the exact value that it does) of the function can depend on the actions of other threads; this is the point that I had expected resistance on.) Similarly, the condition::wait will modify a mutex (unlocking it, and yes, through a non-const Lock object). It will do some other stuff. Bookkeeping or whatever, maybe even blocking itself. No matter what it does internally, by the time it returns control to its caller, all of this has been undone. The thread is not blocked. It is not in a waiting queue. The mutex that we pointed it at has been locked again. From the caller's perspective, the only things different after the call are: 1. Time has passed. 2. Some other threads have done some things that they might not have done otherwise. What they do is their own business. I don't see how that can affect this function's const-ness. (Am I missing something _here_?) My conclusion is that condition::wait is logically const. I will certainly admit that const-ness may be in the eye of the beholder. I expect that the physically const vs. logically const is a problem with some people. However, there do seem to be other examples of functions that are const (in their signatures) in the same spirit that my intuition tells me condition::wait is. Does this elucidate my position? Weston Markham Mark Sizer wrote: The condition wait() requires a lock, which requires a mutex. The mutex state is toggled from acquired to free to acquired whilst the wait() is waiting. It's the same problem that having a lock creates on a method such as this one: ThreadedQueue::bMessageAvailable() const { { boost::mutex::scoped_lock( _mutexQueue ) return !_queue.empty(); } } The only way to make that work is to declare the _mutexQueue as "mutable". In the case above, I agree with you: In terms of logical "const-ness", these methods are (or can be) const. In terms of physical "const-ness", they are not. Solve the problem with "mutable". However, the condition case is a bit more subtle. ThreadedQueue::messageNext() const { { boost::mutex::scoped_lock lockQueue( _mutexQueue ); if ( _queueOut.empty() ) { // (the lock is released before blocking, // then re-locked before continuing) _conditionMessageReady.wait( lockQueue ); } // get a message } } Is that really const? if the _mutexQueue and _conditionMessageReady are made "mutable" we can MAKE the method const (as shown), but is it? I'd say there is a EXPLICIT state change in the object: Into the waiting state. This is a change, therefore non-const. In the bMessageAvailable() case, there is no explicit state change, you're returning the existing state of the object. There is an implicit state change required to safely do so, which we've decided to hide. The only way this can block forever is bad coding - deadlock. When using a condition.wait(), you are making 2 big state changes: Both the object and the thread involved go from a "running" state into a "blocked" state, perhaps forever if nothing notifies (which is reasonable if the event never occurrs, not a coding deadlock error). That doesn't seem "const" to me. - Mark

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smart_ptr without memory allocation
by John Aughey 22 Oct '03

22 Oct '03

I have a class that implements a buffer pool that allocates block of memory, and the users "free" the memory when it is no longer needed back to the buffer pool. Future allocations simply return the front of the free list. Simple enough, and the class returns shared_array<T> objects to automatically free the memory back into the proper buffer pool. The problem is, this mechanism is used so that during real-time operation (this is a real-time system), there is absolutely no memory allocations required. However, inside shared_array, it uses detail::shared_count and inside shared_count it performs a new to create a sp_counted_base object. So for every smart pointer object that supplies a deleter, it must perform a new. My proposal would be to include another constructor to both shared_array (and probably it's corresponding smart pointer brothers) and to shared_count that looks like: shared_array(T *p, sp_counted_base *d) : px(p), pn(d) { } shared_count(sp_counted_base *d) : pi_(d) { } (I haven't implemented this yet, so the above may not be quite right) The purpose of this is to supply an sp_counted_base object to the shared_* object that does the delete functionality. This eliminates the new in the case where a sp_counted_base object can be supplied. In the case of the managed buffer pool mentioned above, the sp_counted_base object could be allocated with the corresponding buffer, and then re-used for subsequent "allocations" from the free list. This should result in no dynamic allocations to create a shared_* object with a corresponding deleter. I hope this makes sense. It should only require two new constuctors. John

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Bind causing crashes with VS.Net 7.1
by Mark Loew 22 Oct '03

22 Oct '03

I am using bind heavily in my application. I noticed a problem that may/may not be a boost issue but wanted to check if anyone had any quick insights. I am using 2 and 3 paramater functions with bind over a range with the for_each operator. What I have noticed is everything is fine when the system is build in debug mode. I then rebuild in release modes with all optimizations turned on. The boost code crashes with access violations. I disabled the optimization of Whole Program Optimization and everything is fine. I believe I have noticed this with other template functions where the whole program optimization causes problems. Has anyone seen this before and do you know what causes it? Just checking if this is a known boost problem or a VC 7.1 issues. Mark Loew, MCSD, MCSE Application Development Consultant Sagestone Consulting www.sagestone.com <http://www.sagestone.com/> Grand Rapids, MI 616-954-9556 x149 Microsoft Gold Certified Partner mloew(a)sagestone.com

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enable_shared_from_this and inheritance
by sashan 22 Oct '03

22 Oct '03

I'm trying to use enable_shared_from_this with my classes that have an inheritance structure and a virtual function. I'd like to get a shared pointer to the descendant class B. I've attached 2 files. One compiles but errors at runtime, the other doesn;t compile. The first method uses makes both class A and B inherit from enable_shared_from_this. The 2nd method makes only the base class A inherit from enable_shared_from_this and tries to dynamic cast to shared_ptr. -- sashan http://www.cs.auckland.ac.nz/~sgov008/ #include <iostream> #include <boost/enable_shared_from_this.hpp> using namespace std; using namespace boost; class A : public enable_shared_from_this<A> { public: A(){ cout << "A" << endl; } virtual void f() { shared_ptr<A> pA(shared_from_this());} }; class B : public A, public enable_shared_from_this { public: B() { cout << "B" << endl;} virtual void f() { shared_ptr pB(enable_shared_from_this::shared_from_this()); } }; void main() { shared_ptr<A> a(new A); a->f(); shared_ptr b(new B); b->f(); } #include <iostream> #include <boost/enable_shared_from_this.hpp> using namespace std; using namespace boost; class A : public enable_shared_from_this<A> { public: A(){ cout << "A" << endl; } virtual void f() { shared_ptr<A> pA(shared_from_this());} }; class B : public A { public: B() { cout << "B" << endl;} virtual void f() { shared_ptr<A> pA(shared_from_this()); shared_ptr pB(dynamic_pointer_cast< shared_ptr >(pA)); } }; void main() { shared_ptr<A> a(new A); a->f(); shared_ptr b(new B); b->f(); }

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which variant code should I use?
by Tom 22 Oct '03

22 Oct '03

It appears that there is a new variant library (boost::variant), but that it has been delayed. Also, there is the old boost.any library. And CUJ has a simple, ref-counted one here http://www.cuj.com/documents/s=8034/cuj0010cacciola/cacciola.htm. Also, CUJ has an article about boost::dynamic_any. Which should I use? I want to use one of the boost libraries, but I would like something small - meaning it won't addmuch to the size of my executable. Most boost libraries I can't use because they are too big (due to dependencies I assume). Thanks, Tom.

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code bloat?
by Marton Fabo 22 Oct '03

22 Oct '03

Hi! I have looked around in the documentation and FAQs about my question, but I don't seem to have found a satisfying answer. My problem is that the boost libraries (especially function) seem to successfully boost the code size of my C++ Builder program, too. The source written by me is around twenty-some thousands of lines, plus the VCL and stdc++ headres, the end result may be somewhere around half a million lines in summary. But after having added some boost headers (mainly function and bind) to where it's appropriate, the amount of compiled lines on a full rebuild jumped to the ten million (!) range. This is way too much. I'm not using any so that much advanced stuff that it would be justified - and the compilation time is inacceptable for such a small app. So, does anyone have some clues regarding why boost may cause so much bloat, and how I could reduce that? thx mortee

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