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Tokenizer Problem
by Thomas Johnson 22 Feb '04

22 Feb '04

Can anyone explain to me why the code below prints: Token: A1B21 Token: A1B Token: : Token: 12 Instead of printing: Token: A1B2 Token: : Token: 12 Token: A1B Token: : Token: 12 Using boost 1.31.0 Thanks! ---Cut here--- #include <boost/tokenizer.hpp> #include <iostream> int main() { boost::char_separator<char> sep("", ":", boost::keep_empty_tokens); boost::tokenizer< boost::char_separator<char> > stringTok(std::string("A1B2:12"),sep); boost::tokenizer< boost::char_separator<char> >::iterator tokIter=stringTok.begin(); while(tokIter!=stringTok.end()) { std::cout << "Token: " << (*tokIter) << "\n"; tokIter++; } boost::tokenizer< boost::char_separator<char> > stringTok2(std::string("A1B:12"),sep); boost::tokenizer< boost::char_separator<char> >::iterator tokIter2=stringTok2.begin(); while(tokIter2!=stringTok2.end()) { std::cout << "Token: " << (*tokIter2) << "\n"; tokIter2++; } } ---Cut Here--- -- Thomas Johnson <thomas(a)unifiedconsulting.com>

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Boost Newbie: Boost Libraries not included ..... Linker Error
by Mohammed Abbas 20 Feb '04

20 Feb '04

Hi, Im a newbie in C++ just barely getting to grips with the Boost Libraries. I had built the Boost Libraries and was expecting that the sample simple_ls program to work. Unfortunately as I compiled it I had received a million plus errors due to the Linker Error. Please tell me whats wrong???????????? P.S. The Library folder for Boost is Empty and I includeded the Boost Include Directory in the gcc path. Yours, MJ ____________________________________________________________ Find what you are looking for with the Lycos Yellow Pages http://r.lycos.com/r/yp_emailfooter/http://yellowpages.lycos.com/default.as…

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Semaphore and barriers for boost-threads?
by Craig Rodrigues 20 Feb '04

20 Feb '04

Hi, I am new to Boost, and like what I see. I hope to be able to use more Boost libraries in the C++ projects that I work on. Would it be a good thing to add semaphore and barrier classes to Boost Threads? For semaphores, having something analogous to the POSIX functions sem_wait() and sem_post() would be nice. For barriers, having something analogous to pthread_barrier_wait() would be nice. It is not very hard to roll your own versions of these primitives using boost::condition and boost::mutex classes, but it would be nice to have them in a library. Any opinions? Thanks. -- Craig Rodrigues http://crodrigues.org rodrigc(a)crodrigues.org

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Counting matches with Regex V4
by john.wismar＠autozone.com 20 Feb '04

20 Feb '04

<Using VC7.0> I'm converting to V4 of Regex, and I thought I might be able to count regex matches using this snippet: boost::regex e; std::string::const_iterator first, last; //Initialize first, last boost::sregex_iterator itBegin(first, last, e) boost::sregex_iterator itEnd; ptrdiff_t pd = std::distance(itBegin, itEnd); I get these errors: xutility(312) : error C2665: 'std::_Iter_cat' : none of the 12 overloads can convert parameter 1 from type 'boost::sregex_iterator' xutility(127): could be 'std::_Int_iterator_tag std:: _Iter_cat(std::_Bool)' xutility(133): or 'std::_Int_iterator_tag std:: _Iter_cat(char)' xutility(139): or 'std::_Int_iterator_tag std:: _Iter_cat(signed char)' xutility(145): or 'std::_Int_iterator_tag std:: _Iter_cat(unsigned char)' xutility(151): or 'std::_Int_iterator_tag std:: _Iter_cat(short)' xutility(157): or 'std::_Int_iterator_tag std:: _Iter_cat(unsigned short)' xutility(163): or 'std::_Int_iterator_tag std:: _Iter_cat(int)' xutility(169): or 'std::_Int_iterator_tag std:: _Iter_cat(unsigned int)' xutility(175): or 'std::_Int_iterator_tag std:: _Iter_cat(long)' xutility(181): or 'std::_Int_iterator_tag std:: _Iter_cat(unsigned long)' xutility(188): or 'std::_Int_iterator_tag std::_Iter_cat (__int64)' xutility(194): or 'std::_Int_iterator_tag std:: _Iter_cat(unsigned __int64)' while trying to match the argument list '(boost::sregex_iterator)' myfile.h(47) : see reference to function template instantiation 'ptrdiff_t std::distance(_InIt,boost::sregex_iterator)' being compiled with [ _InIt=boost::sregex_iterator ] Anyone have any thoughts? Is it a VC7.0 issue? Is there a better or different way of doing the same thing? -------------------------------- John Wismar jwismar(a)midsouth.rr.com ------------------------------------------------------------------------ The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipient is prohibited. If you received this in error, please contact the sender and delete the material from any computer.

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[Graph] What can I do with null_vertex?
by Douglas Gregor 20 Feb '04

20 Feb '04

There are no semantics for null_vertex. I assume I can copy it, but can I compare it against other vertex descriptors via == and !=? Is it always different from "real" vertex descriptors? Doug

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Determining offset of regex syntax errors
by Keith MacDonald 20 Feb '04

20 Feb '04

Members of class reg_expression know where they are up to while compiling, but don't include that information when they throw. It can be pretty daunting to get the "Invalid regular expression" error message, with no indication of where to start looking, so I'd like to be more helpful. Given the character offset from the start of the RE, I can put the cursor there. Any suggestions as to how to obtain that information? Thanks, Keith MacDonald

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Redirecting the detailed test report
by Hermann Oliveira Rodrigues 20 Feb '04

20 Feb '04

Hi, Recently we have decided to use the Boost Test libraries to provide automated tests to our project. To help with the test result visualization, we created an utility to generate HTML pages from Boost test reports (as generated by -- report_level=detailed). In the begining of implementation, the amount of tests was small and we could just cut-and-paste the test report to a file used as the input of out in-house HTML generator. Now, the amount of tests increased and cutting-and-pasting the report become a pain. So the question: How can we send the test report to a separated file? We used unit_test_log::instance().set_log_stream( stream ) in the definition of test_suite* init_unit_test_suite( int argc, char* argv[] ) to redirect the test log and it worked fine. However, unit_test_result::instance().detailed_report( stream ) can not be used in the same way. We can not simply redirect the test output to a file (using ">") because our application prints lots of information during execution and is pretty hard to change this behaviour. Thanks in advance.

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Overloading New and Delete to track memory in shared_ptr.
by Joshua Little 19 Feb '04

19 Feb '04

Hi again, Well I'm making pretty good progress in learning proper way to use shared_ptr's but I'm still a little nervous about leaking memory, especially if I manage to do something I'm not supposed to do and don't recognize that a memory leak may be occuring. I've used the overloading new/delete before to help track memory leaks and I was wondering if that would be possible with shared_ptrs. I tried my old header files with and saw tons of leaks but I think its because my New that I use logs the creation to a Tracer class but since the Delete happens in the shared_ptr, its not using the overloaded Delete that removes stuff from the tracer when its deleted. I've looked around and found some examples of making a custom deleter to pass into the shared ptr when creating a new shared_ptr which should work but I have some worries about it. I'm not quite sure what the recommended way of doing this would be. About the only thing I can think of would be to have two different deleters which would be conditionally compiled something like this : //Overloaded New to log allocation to a tracer, theres a define to add the file and line number to the new call #ifndef NDEBUG void * operator new (unsigned int size, char const * file, int line) { void * p = new (size); if (Tracer::Ready) NewTrace.Add (p, file, line); return p; } struct deleter { void operator() (void * p) const { if (Tracer::Ready) NewTrace.Remove(p); delete p; } } #else struct deleter { void operator() (void * p) const { delete p; } } #endif //NewTrace is an extern'd object in the Main.cpp file So then I'd pass in the deleter to the shared_ptr and then whichever deleter was defined would be passed into the shared_ptr. I'm kinda cobbling together a few different things I've seen but I think that with this I could include the header file in the .cpp file of any class that I want to track the memory of and then just make sure I send in the deleter when I reset or make a new shared ptr. For instance in my LoggerFactory.cpp file : #include "../include/Logger.hpp" #include "../include/LoggerFactory.hpp" #include "../include/dbnew.hpp" LoggerMap LoggerFactory::loggers; boost::shared_ptr<Logger> LoggerFactory::getInstance(std::string& logger) { boost::shared_ptr<Logger>& TheLoggerRef = loggers[logger]; if(!TheLoggerRef.get()) TheLoggerRef.reset(new Logger(logger),deleter()); return TheLoggerRef; } So then the dbnew would define the deleter to use for the Logger object, if it was a debug build it would also create the overloaded new operator, define the _FILE_ and _LINE_ macros to send into the new New operator. And if its not the debug build then essentially the normal deleter is given to the shared_ptr and everything procedes as normal. Is this a good way to go about adding memory leak checking? I've looked for a new memory leak checkers like valgrind but thats only available on Linux and I'm stuck on windows.. and all the memory checkers I've been able to find only support VC++ or borland and I use gcc. So I would like a nice simple way that I can drop right in, which is what I'm going for with the overloading new and the custom deleter. Joshua.

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Concurrency support based on Boost.Threads
by Slawomir Lisznianski 19 Feb '04

19 Feb '04

License: Public Domain URL: http://www.rhapsodia.org Depends on: Boost, STL Code maturity: Beta Target platform: Any with C++ compiler. C++ compilers verified to work on: GNU g++ 3.2.x, Visual C++ 6 Service Pack 5 Description: Rhapsodia is a collection of header files implementing commonly used classes in concurrent C++ programming. Library mainly consists of implementations of: - Channel (bounded, unbounded and priority queue), - Barrier (multi-party synchronization) - Executor (replacement for direct use of thread creation and management API). Your critiques, suggestions or usage questions are much welcomed. Slawomir Lisznianski; [ www.rhapsodia.org ]

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RE: [Boost-users] Mathematical expressions with containers
by Hurd, Matthew 19 Feb '04

19 Feb '04

> Russell Hind > Subject: [Boost-users] Mathematical expressions with containers > > Currently I'm doing more and more mathematical calculations on > containers, and wondered if there is any library out there that allows > containers to be placed in expressions without having to use > transform/for_each etc. > > e.g. > > std::vector<std::complex<double> > V1; > std::vector<std::complex<double> > V2; > double C1, C2; > > ... > > std::vector<std::complex<double> > Result; > > Result = C1 + V2 / (V1 * C2); > > while would be equivalent to (assuming Result has been resized) > > (I'm currently using a mixture of transforms and spirit::phoenix > (because lambda doesn't work with my compiler)) > > transform(V1.begin(), V1.end(), V2.begin(), > Result.begin(), > C1 + phoenix::arg2 / (phoenix::arg1 * C2)); > > Or something to this effect that will aid with this. > > Cheers > > Russell Seems to my quick glance you are asking for some vector operations. Have you looked at boost's ublas? Regards, Matt Hurd. IMPORTANT: The information contained in this email and/or its attachments is confidential. If you are not the intended recipient, please notify the sender immediately by reply and immediately delete this message and all its attachments. Any review, use, reproduction, disclosure or dissemination of this message or any attachment by an unintended recipient is strictly prohibited. Neither this message nor any attachment is intended as or should be construed as an offer, solicitation or recommendation to buy or sell any security or other financial instrument. Neither the sender, his or her employer nor any of their respective affiliates makes any warranties as to the completeness or accuracy of any of the information contained herein or that this message or any of its attachments is free of viruses.

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Any one used boost with comeau c++ compiler for visual c++.net 2003?
by Ben Polen 18 Feb '04

18 Feb '04

To the community; I'm thinking of geting comeau computing's c++ frontend for visual c++.net 2003. I was wondering if anyone has experience using those two programs in conjunction with the boost libraries. In viewing the regression test, I was also wondering why Comeau doesn't seem to compile at a rate of 100% with boost. Is that due to Comeau unconformance, boost unconformance or problems with the c++ backend program, vc 7.1, gcc 3.2 ect. Anyone have any clues? Thanks Ben _________________________________________________________________ Stay informed on Election 2004 and the race to Super Tuesday. http://special.msn.com/msn/election2004.armx

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RE: [Boost-users] Trouble linking regex library on Solaris machine
by Ben Hutchings 18 Feb '04

18 Feb '04

Justin Adam Miller <millerj(a)wam.umd.edu> wrote: > Howdy. As I am only interested in using the regex library right now, I > followed the instructions for building that library only, using dmake. > Compilation went fine. When I tried using the library in a little test > program with the command: > > g++ regextest.cxx -I./boost_1_31_0 > -L./boost_1_31_0/libs/regex/build/sunpro -lboost_regex -o > regextest.cxx > > I get many undefined symbol errors. If requested, I can provide the > entire error output. It looks like you are trying to use the wrong library. SunPro refers to the Sun C++ compiler and tools whereas you are using GNU C++. You have to build the library and application with the same compiler.

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Trouble linking regex library on Solaris machine
by Justin Adam Miller 18 Feb '04

18 Feb '04

Howdy. As I am only interested in using the regex library right now, I followed the instructions for building that library only, using dmake. Compilation went fine. When I tried using the library in a little test program with the command: g++ regextest.cxx -I./boost_1_31_0 -L./boost_1_31_0/libs/regex/build/sunpro -lboost_regex -o regextest.cxx I get many undefined symbol errors. If requested, I can provide the entire error output. Justin Miller

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RE: [Boost-users] Re: Semaphore and barriers for boost-threads?
by Ben Hutchings 18 Feb '04

18 Feb '04

Craig Rodrigues <rodrigc(a)crodrigues.org> wrote: > It is possible to implement semaphore's with mutexes and > condition variables. I looked at the source code for > FreeBSD 5.2's implementation of semaphores to see how this was > done: > > http://www.freebsd.org/cgi/cvsweb.cgi/~checkout~/src/lib/libpthread/thre ad/thr_sem.c > > I even took a whack at writing one based on Boost (it may be buggy): > > #include <boost/thread.hpp> > #include <boost/thread/mutex.hpp> > > struct mysem { > mysem(unsigned int count): count_(count) {} > > void post() { > boost::mutex::scoped_lock l(sem_mutex_); > ++count_; > sem_cond_.notify_all(); notify_one() should be safe and more efficient here, because any of the waiters can be satisfied by the change you have made. Use notify_all() where waiters are waiting for different conditions on the same condition variable. (I'm not sure I expressed that exactly correctly - can anyone improve on that?) > } > > void wait() { > boost::mutex::scoped_lock l(sem_mutex_); > for(;;) { > > if( count_ == 0 ) sem_cond_.wait(l); This is wrong - you must always use while rather than if to test the inverse of the condition you are waiting for because it is possible that the condition is no longer true when wait() returns. (There is also a function template for wait() that tests a predicate for you.) It is even possible on some systems for wait() to return even though no-one called notify_one() or notify_all(). > else { --count_; break; } > } > } > > private: > unsigned int count_; > boost::mutex sem_mutex_; > boost::condition sem_cond_; > }; > > > What kinds of things can go wrong if I use this class? <snip> The other potential problem I see is overflow of count_, but it is exceedingly unlikely that you will be able to create enough threads to cause that.

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TimePropertyMap
by Abhishek Parajuli 18 Feb '04

18 Feb '04

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Help required with tokenizer class
by Matthew Delves 18 Feb '04

18 Feb '04

Greetings, Have been experimenting with the tokenizer class('s) in Boost and have come to a bit of an impass. What I am attempting to do is write an email client. Communication is okay, though what I am stuck on is breaking apart the header of the email into meaningful information. As according to RFC822 each header field is sepperated by \r\n (CRLF) I want to use this as a deliminator for the email message. Unfortunantly each field in the header can be spread over multiple lines ~ and thereby when I use \r\n as a deliminator with boost it will seperate strings if their is a \r or a \n. This is not what I want to happen. What I would like to do is sepperate on \r\n and only on that string and if there is a "\n " (\n then a space) ignore it (or preferably get rid of the \n and join the two strings). The code that I am using to create the tokenizer is as follows. boost::char_separator<char> deliminator(crlf, "", boost::drop_empty_tokens); boost::tokenizer<boost::char_separator<char> > tokenizer(recieved, deliminator); If anyone has any suggestions it would be of great help. Thanks, Matthew Delves http://www.webmastermattd.net (Please send replies directly to me and not to the list... thanks)

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Mathematical expressions with containers
by Russell Hind 18 Feb '04

18 Feb '04

Currently I'm doing more and more mathematical calculations on containers, and wondered if there is any library out there that allows containers to be placed in expressions without having to use transform/for_each etc. e.g. std::vector<std::complex<double> > V1; std::vector<std::complex<double> > V2; double C1, C2; ... std::vector<std::complex<double> > Result; Result = C1 + V2 / (V1 * C2); while would be equivalent to (assuming Result has been resized) (I'm currently using a mixture of transforms and spirit::phoenix (because lambda doesn't work with my compiler)) transform(V1.begin(), V1.end(), V2.begin(), Result.begin(), C1 + phoenix::arg2 / (phoenix::arg1 * C2)); Or something to this effect that will aid with this. Cheers Russell

1 0

spirit max_limit_d min_limit_d limit_d directives
by Владимир Красовский 18 Feb '04

18 Feb '04

Hello everyone Is it expected behavior, that code like this: typedef uint_parser<double> uint_double_parser; my_rule_t max_59_uint = max_limit_d<double>(59.) [ uint_double_parser() ] [max_59_uint.value = arg1] ; causes assertion on input like "" or "aaa"? Investigating problem, I found that in function parse(ScannerT const& scan) const hit.value() used directly, without checking if it valid (see original code). If it is expected use, then what function parser_result::has_valid_attribute() for ? I've modified function parse(ScannerT const& scan) const (see my code) and everything works fine, but I'm not sure if such modification is "legitimate" and does not break anything else. original code (<boost_1_31_0>\boost\spirit\core\composite\directives.hpp): /////////////////////////////////////////////////////////////////////////// // // max_bounded class // /////////////////////////////////////////////////////////////////////////// template <typename BoundsT> struct max_bounded_gen; template <typename ParserT, typename BoundsT> struct max_bounded : public unary<ParserT, parser<max_bounded<ParserT, BoundsT> > > { typedef max_bounded<ParserT, BoundsT> self_t; typedef unary_parser_category parser_category_t; typedef max_bounded_gen<BoundsT> parser_generator_t; typedef unary<ParserT, parser<self_t> > base_t; template <typename ScannerT> struct result { typedef typename parser_result<ParserT, ScannerT>::type type; }; max_bounded(ParserT const& p, BoundsT const& max__) : base_t(p) , max_(max__) {} template <typename ScannerT> typename parser_result<self_t, ScannerT>::type parse(ScannerT const& scan) const { typedef typename parser_result<self_t, ScannerT>::type result_t; result_t hit = this->subject().parse(scan); if (hit.value() > max_) // ^^^^^^^^^^^ no check for validity return scan.no_match(); return hit; } BoundsT max_; }; my code: /////////////////////////////////////////////////////////////////////////// // // max_bounded class // /////////////////////////////////////////////////////////////////////////// template <typename BoundsT> struct max_bounded_gen; template <typename ParserT, typename BoundsT> struct max_bounded : public unary<ParserT, parser<max_bounded<ParserT, BoundsT> > > { typedef max_bounded<ParserT, BoundsT> self_t; typedef unary_parser_category parser_category_t; typedef max_bounded_gen<BoundsT> parser_generator_t; typedef unary<ParserT, parser<self_t> > base_t; template <typename ScannerT> struct result { typedef typename parser_result<ParserT, ScannerT>::type type; }; max_bounded(ParserT const& p, BoundsT const& max__) : base_t(p) , max_(max__) {} template <typename ScannerT> typename parser_result<self_t, ScannerT>::type parse(ScannerT const& scan) const { typedef typename parser_result<self_t, ScannerT>::type result_t; result_t hit = this->subject().parse(scan); if (!hit.has_valid_attribute() || hit.value() > max_) // ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ is this right ? return scan.no_match(); return hit; } BoundsT max_; }; -- Best regards, Vladimir mailto:vkrasovsky@yandex.ru

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RE: [Boost-users] tips from anyone using boost with Qt?
by Tom Matelich 18 Feb '04

18 Feb '04

We actually primarily use ACE threads, mainly because we started our development before Boost or Qt had threads. The only point I might make is that Qt currently doesn't support threads on HP. For the next independent thing I write needing threads, I'll probably use the Boost thread API, only because it seems like an implementation that was approached from a very C++ POV with a lot of really smart people giving input into the design. I love Qt for its UI, but much of their cross-platform wrapping code leaves something to be desired for me. -----Original Message----- From: Paul Miller [mailto:paul@fxtech.com] Sent: Tue 2/17/2004 12:32 PM To: boost-users(a)lists.boost.org Cc: Subject: [Boost-users] tips from anyone using boost with Qt? I'm in the interesting situation of having to decide whether to use Qt threads or boost threads in this application I am developing. boost threads sound nice because they do not require Qt. Qt threads sound nice because they are integrated more with Qt, and might interroperate better when combined with a UI. Anyone have any advice on the matter? _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users ----------------------------------------------------------------------- DISCLAIMER: Information contained in this message and/or attachment(s) may contain confidential information of Zetec, Inc. If you have received this transmission in error, please notify the sender by return email. -----------------------------------------------------------------------

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tips from anyone using boost with Qt?
by Paul Miller 17 Feb '04

17 Feb '04

I'm in the interesting situation of having to decide whether to use Qt threads or boost threads in this application I am developing. boost threads sound nice because they do not require Qt. Qt threads sound nice because they are integrated more with Qt, and might interroperate better when combined with a UI. Anyone have any advice on the matter?

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retrieving boost::variant values to different types
by Andrew Chapman 17 Feb '04

17 Feb '04

Hey everyone, I was just having a look at the new boost::variant vlass, and I was expecting to be able to do something like: boost::variant<int, float> var; var = 5; int i = boost::get<int>(var); // fine float f = boost::get<float>(var); // throws As the comments show, asking for the variant's value using get<int> works fine but get<float> throws an exception as it is an unmatched type. So it seems that before you can retrieve the value of the variant you need to know its type? How do you check what type the variant is currently holding? This would work but is inefficient/ugly: boost::variant<int, float> var; var = 5; std::stringstream str; str << var; int i = atoi(str.str()); float f = atof(str.str()); I was hoping to use the variant class to implement scripting language style variables where you can get/set them to be any type (which seems to work fine) and also retrieve them to any type (though retrieving a string as a bool may not always make too much sense). Any suggestions? -- Andrew Chapman 3D Technical Director - Framestore CFC

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MPL: loop unrolling
by Martin Wartens 15 Feb '04

15 Feb '04

Hi, is there a way to unroll a loop with mpl? I simply would like to unroll for (int i=0; i<10; i++) foobar(i); MPL looks like it is quite powerful, but what is it worth when there is no useful documentation? There are hardly any examples, the mini-tutorial is indeed very mini. Then there is a listing of the interfaces and "the MPL paper", which is mainly concerned with design/implementation questions. Regards, Martin ________________________________________________________________________________________________ Sagen Sie nicht, wir hätten Sie nicht gewarnt! http://my-mail.ch/?redirect=9901 Bestellen Sie Ihren PC oder Ihr Notebook online und sparen Sie! http://my-mail.ch/?redirect=1530

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Building boost with dev-cpp
by mvogt＠juptech.com 15 Feb '04

15 Feb '04

Hi, can anyone help me with building boost using dev-cpp? I'm trying to build boost 1.31.0 with this system, never having used it before. I have Dev-Cpp installed at C:\Program Files\Dev-Cpp, and boost extracted to C:\Code\boost_1_31_0. Using the command line: C:\Code\boost_1_31_0> bjam "-sTOOLS=mingw" "-sMINGW_ROOT_DIRECTORY=c:/progra~1/dev-cpp" install bjam tries to start building various targets, and manages to invoke the compiler, but all compilations fail due to failing to find the standard include files - various manipulations of -sMINGW_INCLUDE_DIRECTORY haven't helped. This is the output of the first compile in the build: -------------------------------------------------------------- c:/progra~1/dev-cpp/bin/\g++ -c -Wall -ftemplate-depth-100 -DBOOST_DATE_TIME_POSIX_TIME_STD_CONFIG -DBOOST_ALL_DYN_LINK=1 -g -O0 -fno-inline -mno-cygwin -I"bin\boost\libs\date_time\build" -I "C:\Code\boost_1_31_0" -o "bin\boost\libs\date_time\build\boost_date_time.dll\mingw\debug\greg_month.obj" "C:/Code/boost_1_31_0/libs/date_time/build/../src/gregorian/greg_month.cpp" In file included from C:/Code/boost_1_31_0/boost/config.hpp:40, from C:/Code/boost_1_31_0/boost/shared_ptr.hpp:18, from C:/Code/boost_1_31_0/boost/date_time/gregorian/greg_month.hpp:14, from C:/Code/boost_1_31_0/libs/date_time/src/gregorian/greg_month.cpp:14: C:/Code/boost_1_31_0/boost/config/select_stdlib_config.hpp:20:19: utility: No such file or directory In file included from C:/Code/boost_1_31_0/boost/shared_ptr.hpp:27, from C:/Code/boost_1_31_0/boost/date_time/gregorian/greg_month.hpp:14, from C:/Code/boost_1_31_0/libs/date_time/src/gregorian/greg_month.cpp:14: C:/Code/boost_1_31_0/boost/detail/shared_count.hpp:35:61: memory: No such file or directory C:/Code/boost_1_31_0/boost/detail/shared_count.hpp:36:41: functional: No such file or directory C:/Code/boost_1_31_0/boost/detail/shared_count.hpp:37:46: exception: No such file or directory C:/Code/boost_1_31_0/boost/detail/shared_count.hpp:38:46: new: No such file or directory C:/Code/boost_1_31_0/boost/detail/shared_count.hpp:39:61: typeinfo: No such file or directory C:/Code/boost_1_31_0/boost/detail/shared_count.hpp:40:43: cstddef: No such file or directory [ snip ] C:/Code/boost_1_31_0/boost/detail/shared_count.hpp:389: confused by earlier errors, bailing out Executing through .bat file Executing command [cmd.exe] [/Q/C][C:\DOCUME~1\MJV1\LOCALS~1\Temp\jam5712-00.bat] ...failed gcc-C++-action bin\boost\libs\date_time\build\boost_date_time.dll\mingw\debug\greg_month.obj... gcc-C++-action bin\boost\libs\date_time\build\boost_date_time.dll\mingw\debug\greg_weekday.obj -------------------------------------------------------------- I would be happy to supply any output that might be useful in diagnosing my problem. Thanks, Matt ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify mail.administrator(a)jupiters.com.au **********************************************************************

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Regex linker problem with VC7.1
by Keith MacDonald 15 Feb '04

15 Feb '04

I built boost 1.31.0 using bjam "-sTOOLS=VC7.1", and the static library names that are generated for regex do not match those generated by its header files. For example, one actual library name is: libboost_regex-VC7.1-mt-gd-1_31.lib Whereas, because of the "#pragma comment(lib, ..." stuff, the linker expects: libboost_regex-vc71-mt-gd-1_31.lib There's no header macro to disable automatic linking, so renaming the library is the easiest workaround. Keith MacDonald

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Use of regex_grep in regex_replace
by Keith MacDonald 15 Feb '04

15 Feb '04

I need to know if regex_replace actually makes any replacements, so will have to code something similar myself, rather than using it as is. The 1.31.0 documentation states that regex_replace (effectively) constructs a regex_iterator object to do the work, but in practice it uses the deprecated regex_grep algorithm. Is there some advantage to doing it that way? Thanks, Keith MacDonald

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