- Boost - lists.boost.org

BOOST_TRY, can we make it into CVS?
by Pavel Vozenilek 01 May '04

01 May '04

I would like to ask someone with write access to CVS to create file boost/details/exception_helpers.hpp (or so) with content: #include <boost/config.hpp> #include <boost/detail/workaround.hpp> #if !(defined BOOST_NO_EXCEPTIONS) # define BOOST_TRY { try # define BOOST_CATCH(x) catch(x) # define BOOST_RETHROW throw; # define BOOST_CATCH_END } #else # if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x564)) # define BOOST_TRY { if ("") # define BOOST_CATCH(x) else if (!"") # else # define BOOST_TRY { if (true) # define BOOST_CATCH else if (false) # endif # define BOOST_RETHROW # define BOOST_CATCH_END } #endif circular_buffer, serialization and multi_index_container may use this code. It was discussed on the list and reaction was rather positive. TIA /Pavel

2 1

looping construct
by michael toksvig 30 Apr '04

30 Apr '04

A while back, Erik Niebler was testing the waters for inclusion of his very, very clever looping construct into boost, but nothing really came of it. Erik's technique is described here: http://www.nwcpp.org/Meetings/2004/01.html Yup, macros are involved and they are yucky, and yup, there already exists a for_each in the standard that works just fine if you care to move your loop body away into a function, and yup, the name BOOST_FOREACH could use a little love. But there is no denying the notational clarity and succinctness of e.g.: foreach(double &d, container) d += 2; Versus the rather redundant: for (list<double>::iterator i = container.begin(); i !=container.end(); ++i) *i += 2; (Note that the latter stops working if container is represented using a vector or a built-in array instead) /Michael Toksvig

11 52

Can't access repositories using :ssh:
by Victor A. Wagner Jr. 30 Apr '04

30 Apr '04

Starting yesterday (it's still Thursday here) I started getting errors in my update and build scripts. When I chased it down, I was getting: WARNING - POTENTIAL SECURITY BREACH! The server's host key does not match the one PuTTY has cached in the registry. This means that either the server administrator has changed the host key, or you have actually connected to another computer pretending to be the server. The new key fingerprint is: ssh-dss 1024 4c:68:03:d4:5c:58:a6:1d:9d:17:13:24:14:48:ba:99 If you were expecting this change and trust the new key, hit Yes to update PuTTY's cache and continue connecting. If you want to carry on connecting but without updating the cache, hit No. If you want to abandon the connection completely, hit Cancel. Cancel is the ONLY guaranteed safe choice.1¦ I tried it manually a few times, then surrendered and said yes.... that didn't solve the problem now I get: C:\Projects\boost>cvs update -dPA Protocol error: 'Directory' missingE Protocol error: 'Directory' missingE Protocol error: 'Directory' missingE Protocol error: 'Directory' missingE Protocol error: 'Directory' missingE Protocol error: 'Directory' missingE Protocol error: 'Directory' missingE Protocol error: 'Directory' missingE Protocol error: 'Directory' missingE Protocol error: 'Directory' missingE Protocol error: 'Directory' missingE Protocol error: 'Directory' missingE Protocol error: 'Directory' missingE Protocol error: 'Directory' missingE Protocol error: 'Directory' missingE Protocol error: 'Directory' missingE Protocol error: 'Directory' missingE Protocol error: 'Directory' missingE Protocol error: 'Directory' missingE Protocol error: 'Directory' missingE Protocol error: 'Directory' missingE Protocol error: 'Directory' missingE Protocol error: 'Directory' missingE Protocol error: 'Directory' missingE Protocol error: 'Directory' missingE Protocol error: 'Directory' missingE Protocol error: 'Directory' missingE Cannot access /cvsroot/boost/CVSROOT No such file or directory I get this behavio(u)r on both boost and boost-sandbox a simpler command yields (logging in just to make sure...): C:\Projects\boost>cvs login Logging in to :ssh:vawjr@cvs.boost.sourceforge.net:22:/cvsroot/boost CVS password: ******* C:\Projects\boost>cvs co -c Cannot access /cvsroot/boost/CVSROOT No such file or directory Victor A. Wagner Jr. http://rudbek.com The five most dangerous words in the English language: "There oughta be a law"

3 3

cycle_iterator update
by Neal D. Becker 30 Apr '04

30 Apr '04

Here is an update to cycle_iterator. This is based on the original design by Gennadiy Rozental. After fairly extensive performance testing I am getting good results (compared to my old implementation which was hand-written, not based on boost iterators), after adding operator[]. There are two versions, both give about the same performance in my tests. One version, which I prefer, modifies the underlying base iterator for operations such as increment. The other implementation never touches the base iterator, but modifies an integral offset value. Also included is a Ring container adaptor class, which adapts a container (e.g., std::vector) to a ring. Basic operations are there, but more can be added. Also a simple test program.

4 9

boost.test XML output error
by Alex Odinaev 30 Apr '04

30 Apr '04

Hi, When I was trying to export test log to XML format I found that unit test framework doesn't convert '&' symbol to appropriate XML sequence. & shows up in log file if you have something like BOOST_CHECK(a&&b). Everything inside () goes to XML directly. Thanks, Alex Odinayev

1 0

bind.hpp needs a cwpro8 workaround
by David Abrahams 30 Apr '04

30 Apr '04

Pro8 is having trouble parsing these templates. Any ideas, Peter? template<class R, class T> inline _mfi::dm<R, T> unwrap(R T::* * pm, int) { return _mfi::dm<R, T>(*pm); } template<class R, class T> inline _mfi::dm<R, T> unwrap(R T::* const * pm, int) { return _mfi::dm<R, T>(*pm); } --- ### mwcc Compiler: # In: C:\boost\boost\bind.hpp # From: named_params_test.cpp # ------------------------------ # 131: template<class R, class T> inline _mfi::dm<R, T> unwrap(R T::* * pm, int) # Error: ^ # ')' expected ### mwcc Compiler: # 132: { # Error: ^ # declaration syntax error ### mwcc Compiler: # 133: return _mfi::dm<R, T>(*pm); # Error: ^^^^^^ # declaration syntax error ### mwcc Compiler: # 136: template<class R, class T> inline _mfi::dm<R, T> unwrap(R T::* const * pm, int) # Error: ^^^^^ # ')' expected ### mwcc Compiler: # 137: { # Error: ^ # declaration syntax error # Too many errors printed, aborting program -- Dave Abrahams Boost Consulting http://www.boost-consulting.com

2 11

[type traits, mpl] small fix for BCB 6.4
by Pavel Vozenilek 30 Apr '04

30 Apr '04

BCB 6.4 doesnt't like when top level namespace is prefixed with :: type_traits/is_const.cpp contains line BOOST_TT_AUX_BOOL_TRAIT_DEF1(is_const,T,::boost::detail::cv_traits_imp<T*>:: is_const) If the leading :: is removed to BOOST_TT_AUX_BOOL_TRAIT_DEF1(is_const,T,boost::detail::cv_traits_imp<T*>::is _const) BCB stops complaining. There are few other places there which may be changed similarly. ---------------- The same problem appears in MPL's value_wknd.hpp: # if !defined(BOOST_MPL_MSVC_60_ETI_BUG) # define BOOST_MPL_AUX_VALUE_WKND(C) ::boost::mpl::aux::value_wknd< C > needs to be changed to # define BOOST_MPL_AUX_VALUE_WKND(C) boost::mpl::aux::value_wknd< C > These problems appeared when trying to compile Collection Traits library. /Pavel

2 2

Can libs/regex/build/gcc.mk use $(AR) instead of just "ar"
by Brad Spencer 30 Apr '04

30 Apr '04

When cross compiling, I need to use an "ar" with the correct target and not just "ar". I've patched boost/libs/regex/build/gcc.mk locally as shown in my attachment, but all I really did was replace use of "ar" with $(AR), which I can then override when invoking make. Perhaps this is reasonable to apply to the mainline copy? [BTW, I'm still locally patching iterator/iterator_facade.hpp because of conflicts with system header macros on i386-pc-solaris2.8. That thread seemed to die.] Thanks! -- ------------------------------------------------------------------ Brad Spencer - spencer(a)infointeractive.com - "It's quite nice..." Systems Architect | InfoInterActive Corp. | A Canadian AOL Company

2 1

[Boost-bugs] [ boost-Bugs-945000 ] Dereferencing invalid iterator
by SourceForge.net 30 Apr '04

30 Apr '04

Bugs item #945000, was opened at 2004-04-29 18:56 Message generated for change (Tracker Item Submitted) made by Item Submitter You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=107586&aid=945000&group_i… Category: graph Group: None Status: Open Resolution: None Priority: 5 Submitted By: Nobody/Anonymous (nobody) Assigned to: Jeremy Siek (jsiek) Summary: Dereferencing invalid iterator Initial Comment: boost 1.31.0, subgraph.hpp, line 179, function find_vertex(vertex_descriptor u_global) const; return std::make_pair((*i).second, i != m_local_vertex.end()); //if i == m_local_vertex.end() - iterator should not be dereferenced ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=107586&aid=945000&group_i… ------------------------------------------------------- This SF.Net email is sponsored by: Oracle 10g Get certified on the hottest thing ever to hit the market... Oracle 10g. Take an Oracle 10g class now, and we'll give you the exam FREE. http://ads.osdn.com/?ad_id=3149&alloc_id=8166&op=click _______________________________________________ Boost-bugs mailing list Boost-bugs(a)lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/boost-bugs

1 0

serialization doc buglet?
by Neal D. Becker 29 Apr '04

29 Apr '04

Serialization18 reference suggests this should work (this is almost verbatim from the section on seperate load/store free function): #include <boost/archive/text_oarchive.hpp> #include <boost/archive/text_iarchive.hpp> #include <boost/serialization/vector.hpp> template<class Archive> void load (Archive& ar, std::complex<double>& z, const unsigned int version) { double r, i; ar >> r; ar >> i; z = Complex (r, i); } namespace boost { namespace serialization { template<class Archive> inline void serialize(Archive & ar, std::complex<double>& z, const unsigned int file_version) { split_free(ar, z, file_version); } }} Claims "load" is not declared. But adding boost::serialization namespace will fix it: namespace boost { namespace serialization { template<class Archive> void load (Archive& ar, std::complex<double>& z, const unsigned int version) { double r, i; ar >> r; ar >> i; z = Complex (r, i); } }} This was tested with gcc-3.3.2. Is this a doc bug?

1 0