January 2010 - Boost-users - lists.preview.boost.org

Issues with unnamed enums
by Kyle Altendorf 27 Jan '10

27 Jan '10

I have just tried to use Boost for the first time and it appears to not take kindly to unnamed enums from another library I use and (once those were named) some Microsoft SDK. I am using: Windows XP SP3 Visual Studio 2008 SP1 Boost 1.41.0 More specifically, after adding '#include <boost/foreach.hpp>' I started getting compilation errors such as: 1>c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(43) : error C2332: 'class' : missing tag name 1>c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(43) : error C2011: '<unnamed-tag>' : 'enum' type redefinition 1> c:\korvis\korvislibs\khmilib\kvdisplay.h(18) : see declaration of '<unnamed-tag>' 1>c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(43) : error C2143: syntax error : missing ',' before 'constant' kvdisplay.h(18) is the definition of an unnamed enum in another library I use. iterator_facade.hpp(43) is (including comments before it): > // This forward declaration is required for the friend declaration > // in iterator_core_access > template <class I, class V, class TC, class R, class D> class iterator_facade; I went through and named a each of the unnamed enums as the compiler referenced them until I got to an issue with shlwapi.h from a Microsoft SDK. Here's the complete compiler error list at that point: 1>c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(43) : error C2332: 'class' : missing tag name 1>c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(43) : error C2011: '<unnamed-tag>' : 'enum' type redefinition 1> c:\program files\microsoft sdks\windows\v6.0a\include\shlwapi.h(1550) : see declaration of '<unnamed-tag>' 1>c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(43) : error C2143: syntax error : missing ',' before 'constant' 1>c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(479) : error C2332: 'class' : missing tag name 1>c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(479) : error C2011: '<unnamed-tag>' : 'enum' type redefinition 1> c:\program files\microsoft sdks\windows\v6.0a\include\shlwapi.h(1550) : see declaration of '<unnamed-tag>' 1>c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(479) : error C2143: syntax error : missing ',' before 'constant' 1>c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(484) : error C2977: 'boost::iterator_facade' : too many template arguments 1> c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(43) : see declaration of 'boost::iterator_facade' 1>c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(484) : error C2977: 'boost::iterator_facade' : too many template arguments 1> c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(43) : see declaration of 'boost::iterator_facade' 1>c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(485) : error C2977: 'boost::iterator_facade' : too many template arguments 1> c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(43) : see declaration of 'boost::iterator_facade' 1>c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(485) : error C2977: 'boost::iterator_facade' : too many template arguments 1> c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(43) : see declaration of 'boost::iterator_facade' 1>c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(487) : error C2977: 'boost::iterator_facade' : too many template arguments 1> c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(43) : see declaration of 'boost::iterator_facade' 1>c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(487) : error C2977: 'boost::iterator_facade' : too many template arguments 1> c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(43) : see declaration of 'boost::iterator_facade' 1>c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(488) : error C2977: 'boost::iterator_facade' : too many template arguments 1> c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(43) : see declaration of 'boost::iterator_facade' 1>c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(488) : error C2977: 'boost::iterator_facade' : too many template arguments 1> c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(43) : see declaration of 'boost::iterator_facade' 1>c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(489) : error C2977: 'boost::iterator_facade' : too many template arguments 1> c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(43) : see declaration of 'boost::iterator_facade' 1>c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(489) : error C2977: 'boost::iterator_facade' : too many template arguments 1> c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(43) : see declaration of 'boost::iterator_facade' 1>c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(490) : error C2977: 'boost::iterator_facade' : too many template arguments 1> c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(43) : see declaration of 'boost::iterator_facade' 1>c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(490) : error C2977: 'boost::iterator_facade' : too many template arguments 1> c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(43) : see declaration of 'boost::iterator_facade' 1>c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(494) : error C2977: 'boost::iterator_facade' : too many template arguments 1> c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(43) : see declaration of 'boost::iterator_facade' 1>c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(494) : error C2977: 'boost::iterator_facade' : too many template arguments 1> c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(43) : see declaration of 'boost::iterator_facade' 1>c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(501) : error C2977: 'boost::iterator_facade' : too many template arguments 1> c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(43) : see declaration of 'boost::iterator_facade' 1>c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(508) : error C2977: 'boost::iterator_facade' : too many template arguments 1> c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(43) : see declaration of 'boost::iterator_facade' 1>c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(566) : error C2332: 'class' : missing tag name 1>c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(566) : error C2011: '<unnamed-tag>' : 'enum' type redefinition 1> c:\program files\microsoft sdks\windows\v6.0a\include\shlwapi.h(1550) : see declaration of '<unnamed-tag>' 1>c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(566) : error C2143: syntax error : missing ',' before 'constant' 1>c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(567) : error C2988: unrecognizable template declaration/definition 1>c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(567) : error C2059: syntax error : 'constant' 1>c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(567) : error C2065: 'V' : undeclared identifier 1>c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(567) : error C2065: 'TC' : undeclared identifier 1>c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(567) : error C2065: 'R' : undeclared identifier 1>c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(567) : error C2065: 'D' : undeclared identifier 1>c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(572) : error C2332: 'class' : missing tag name 1>c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(572) : error C2011: '<unnamed-tag>' : 'enum' type redefinition 1> c:\program files\microsoft sdks\windows\v6.0a\include\shlwapi.h(1550) : see declaration of '<unnamed-tag>' 1>c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(573) : error C2065: 'V' : undeclared identifier 1>c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(573) : error C2065: 'TC' : undeclared identifier 1>c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(573) : error C2065: 'R' : undeclared identifier 1>c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(573) : error C2065: 'D' : undeclared identifier 1>c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(574) : error C2334: unexpected token(s) preceding '{'; skipping apparent function body 1>c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(721) : error C3855: 'boost::iterator_facade': template parameter '__formal' is incompatible with the declaration 1>c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(721) : error C2977: 'boost::iterator_facade' : too many template arguments 1> c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(601) : see declaration of 'boost::iterator_facade' 1>c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(724) : error C2332: 'class' : missing tag name 1>c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(724) : error C2011: '<unnamed-tag>' : 'enum' type redefinition 1> c:\program files\microsoft sdks\windows\v6.0a\include\shlwapi.h(1550) : see declaration of '<unnamed-tag>' 1>c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(724) : error C2143: syntax error : missing ',' before 'constant' 1>c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(725) : error C2065: 'V' : undeclared identifier 1>c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(725) : error C2065: 'R' : undeclared identifier 1>c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(725) : error C2065: 'TC' : undeclared identifier 1>c:\korvis\boost\include\boost\iterator\iterator_facade.hpp(726) : fatal error C1903: unable to recover from previous error(s); stopping compilation Am I correct that the unnamed enums are somehow causing the problem? Any help you can offer understanding or resolving this issue would be greatly appreciated. Thanks for your time, -kyle

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Query re connected components in the Boost Graph Library
by Christopher Henrich 27 Jan '10

27 Jan '10

The connected_components function in the BGL returns the connected component information in a "ComponentMap," in which the value for node i is the number c[i] of the component containing that node. Is the sequence of component numbers "restricted growth" ? That is, can I assume that c[0] = 0 and for i > 0, c[i] <= 1 + max(c[0], ..., c[i-1])? It would appear that this would be true, as a consequence of the easiest way to use depth-first search to find the components. And a brief attempt to read the source code encourages me to believe it. But I may not have understood the source code. And I do not find it stated in the boost documentation, nor in /The Boost Graph Library/. Thanks in advance for clarification on this point. Christopher Henrich chenrich(a)monmouth.com mathinteract.com

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[thread] Is a call to interrupt_all blocking?
by Sachin Garg 27 Jan '10

27 Jan '10

Does a call to interrupt_all blocks the calling thread, waiting for all threads to be interrupted? Or is it supposed to return immediately and let the threads hit their interruption points later? I have a thread_group and I want to call interrupt_all to stop all threads in the group from 'within' one of the threads in that group. This would be possible only if interrupt_all in not blocking, otherwise I will need to somehow signal some other thread to do the interrupt_all on that group. SG

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Question on grammar
by Manjunath Kudlur 27 Jan '10

27 Jan '10

I am sure this has been asked before, but I am not able to find an answer to my specific question in the archives. I wanted to create a grammar that can accept statements like if_(expr)[ statement-list ].else_[statement-list]. I created a if_expr type using proto::extends, and added a member called else_ to it, of type proto::function<proto::terminal<if_then_else>, Expr const&>. The code is given below. I am trying to match statements of the above form. Look for if_only_grammar and if_grammar below. The main function has 2 cases, one with just if_ and another with if_ and else_. My grammar matches neither of them. What am I doing wrong? I am quite the newbie to proto, so I am not still able to parse the compiler error message and understand it yet. I will be grateful for any help. Thanks, Manjunath #include <boost/proto/proto.hpp> #include <boost/mpl/bool.hpp> #include <boost/mpl/assert.hpp> #include <iostream> #include <sstream> #include <string> using namespace boost; using namespace std; unsigned int ids; template<typename VT> struct Var { unsigned int id; Var() { id = ++ids; } }; struct if_fun {}; struct program {}; struct if_then_else {}; struct if_domain; template <typename Expr> struct if_expr : proto::extends<Expr, if_expr<Expr>, if_domain> { typedef proto::extends<Expr, if_expr<Expr>, if_domain> base_type; using base_type::operator =; typedef typename proto::result_of::make_expr<proto::tag::function, if_then_else, Expr const &>::type else_type; else_type else_; if_expr(Expr const &e = Expr()) : base_type(e) , else_(proto::make_expr<proto::tag::function>(if_then_else(), boost::ref(e))) {} }; struct if_domain : proto::domain<proto::generator<if_expr> > { }; struct napl_grammar; struct arith_expr_grammar; struct rel_expr_grammar; struct assign_grammar; struct statement_grammar; struct bb_grammar; struct if_only_grammar : proto::or_< proto::subscript<proto::function<if_expr<proto::terminal<if_fun>::type>, rel_expr_grammar >, bb_grammar> > { }; struct if_grammar : proto::or_< if_only_grammar, proto::subscript<proto::function<proto::terminal<if_then_else>, if_only_grammar>, bb_grammar> > { }; struct arith_expr_grammar : proto::or_< proto::plus< arith_expr_grammar, arith_expr_grammar>, proto::minus< arith_expr_grammar, arith_expr_grammar>, proto::multiplies< arith_expr_grammar, arith_expr_grammar>, proto::divides< arith_expr_grammar, arith_expr_grammar>, proto::terminal<Var<int> >, proto::terminal<int>, rel_expr_grammar > { }; struct rel_expr_grammar : proto::or_< proto::less< arith_expr_grammar, arith_expr_grammar>, proto::greater< arith_expr_grammar, arith_expr_grammar>, proto::less_equal< arith_expr_grammar, arith_expr_grammar>, proto::greater_equal< arith_expr_grammar, arith_expr_grammar>, proto::equal_to< arith_expr_grammar, arith_expr_grammar>, proto::not_equal_to< arith_expr_grammar, arith_expr_grammar>, proto::logical_not< rel_expr_grammar> > { }; struct assign_grammar : proto::or_< proto::assign<proto::terminal<Var<int> >, arith_expr_grammar>, proto::assign<proto::terminal<Var<int> >, rel_expr_grammar> > { }; struct statement_grammar : proto::or_< assign_grammar, if_grammar > { }; struct bb_grammar : proto::or_< statement_grammar, proto::comma<bb_grammar, statement_grammar> > { }; struct napl_grammar : proto::or_< proto::terminal<program>, proto::subscript<proto::terminal<program>, bb_grammar> > { }; template<typename Expr> void check_and_execute(const Expr &e, mpl::true_) { cout << "Program printer TBD.\n"; } template<typename Expr> void check_and_execute(const Expr &e, mpl::false_) { cout << "Should not be here\n"; } template<typename Expr> void check_grammar(const Expr &e) { BOOST_MPL_ASSERT_MSG((proto::matches<Expr, napl_grammar>::value), SYNTAX_NOT_CORRECT, (void)); check_and_execute(e, proto::matches<Expr, napl_grammar>()); //cout << napl_grammar()(e) << "\n"; } int main() { proto::terminal<Var<int> >::type i1, i2, i3, i4, i5; proto::terminal<program>::type Program; if_expr<proto::terminal<if_fun>::type> if_; int i=4242; check_grammar( Program[ if_(i1 < i2) [ i2 ] ]); /* check_grammar( Program[ if_(i1 < i2) [ i2 ].else_[ i3 ] ]); */ }

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[multi_index] modify_key with an iterator to composite_key
by Christian Holmquist 27 Jan '10

27 Jan '10

Hi, >From what I've found on the net (here: http://groups.google.com/group/boost-list/browse_thread/thread/687ce9662a4c…) about this problem, Joaquin explains that modify_key on a composite_key isn't supported. Relevant part from that thread is: When you use modify_key, you modifier functor is passed > *the key* rather than the whole element as is the case > with modify. In this particular situation, the key is > a composite key; so the key object (defined privately > by composite_key) is some entity that somehow references > entry::m_x and entry::m_y. This object is not exposed > to the public and you're not supposed to try to use > it or modify it, hence the problems you're seeing. > In short, when using composite_key you cannot use > modify_key. The alternative must be to use modify() instead, so I'd like to know how to get the best performance in the following scenario: My index is specified as. namespace bmi = boost::multi_index; struct Index : boost::mpl::vector2 < bmi::hashed_unique<bmi::member<Entry, std::string, &Entry::m_Name> >, bmi::ordered_non_unique < bmi::composite_key < Entry, bmi::member<Entry, int, &Entry::m_State>, bmi::member<Entry, int, &Entry::m_Timestamp> > > > {}; I frequently updated Entry::m_State and Entry::m_Timestamp, but never Entry::m_Name during the lifetime of an entry, thus I expected modify_key to be faster since the expensive hash index don't need to be updated. Since I cannot tell modify() which parts of the Entry I'm about to update, I don't see how I can avoid the rehashing. Maybe there's a better way to configure the index? I'm using Entry::m_State for an equal_range() search, while Entry::m_Timestamp is only for ordering (I bump the timestamp everytime I change m_State). I am using boost.1.35 btw Any response much appreciated, Christian

3 4

Is it possible to sort the vertices in adjacency_list ?
by Konstantin Silav 27 Jan '10

27 Jan '10

Hi, we have a graph with bundled properties for vertices, edges and graph it self. The vertices have X and Y Cartesian coordinates. Now I'd like to SORT them along one of the axis. Is it possible to do it "inside" the graph? Which container should i choose? Custom one? Does this change the edge mapping? Or do I need to copy the vertices in one external container? Thanks in advance!

1 0

Designing a table-like data structure with Fusion
by Matthias Vallentin 27 Jan '10

27 Jan '10

I am in the process of designing a table-like data structure and would like to hear your feedback on the choice of Fusion for this task. In the context of databases, a table contains multiple columns that exhibit different types (short, unsigned int, long long, etc...). Columns must be added at runtime. The table is column-oriented in that it stores each column individually, yet provides a row-oriented interface to add data. The table structure (aka. schema) remains immutable once all columns have been added. To benefit from the heterogeneous nature of Fusion, I would consider a table row a fusion::vector, maybe created using fusion::vector_tie from some arbitrary data. At the very high level, I think of something along the lines of: template <typename T> struct column { void write(const T& x) { // Store x in some fashion (memory or disk). } }; struct table { --> fusion::vector<???> cols; template <typename C> void add_column(C* c) { fusion::push_back(cols, c); } template<typename R> void write(const R& row) { // Writer simply calls c->write(x). fusion::for_each(fusion::zip(row, cols), writer()); } }; int main() { table t; ... auto* ic = new column<int>(); auto* dc = new column<double>(); t.add_column(ic); t.add_column(dc); ... } As you can see (at the mark -->), I need to cross at some point the compile-time/runtime boundary but I am having trouble designing that interface. Perhaps boost::variant might help here to bound the potential number of types? Any kind of thoughts are appreciated. Matthias -- Matthias Vallentin vallentin(a)icsi.berkeley.edu http://www.icir.org/matthias

2 2

BOOST_FUSION_ADAPT_STRUCT: non intrusive macro, get a fusion sequence of struct member types and member names
by Hicham Mouline 27 Jan '10

27 Jan '10

Hello, I am aware that it is planned to implement metafunctions that returned the list of member types of a struct, as well as members names, as fusion/mpl sequences. The macro uses some PP magic. My project has progressed that I think I need this feature to proceed. I may try my hand at implementing these features... Which files in boost/fusion are involved in the implementation of the macro? regards,

4 8

concise error messages
by Manjunath Kudlur 27 Jan '10

27 Jan '10

Hello, I wrote a small DSEL with proto. An example program can be found in the main function below. I use BOOST_MPL_ASSERT_MSG to check an expression against a grammar, and can make the compiler output a small string if the syntax is wrong. But I can do it only for the entire program. Is there a way to do finer grain grammar checking with proto? For example, I haven't defined the "<" operator for expressions, but when I use it in the DSEL code, I get 10 pages of error messages from g++, with the SYNTAX_NOT_CORRECT string somewhere. I would like to get somewhat more accurate than this. Any pointers? Thanks, Manjunath #include <boost/proto/proto.hpp> #include <boost/mpl/assert.hpp> #include <iostream> #include <sstream> #include <string> using namespace boost; using namespace std; unsigned int ids; template<typename VT> struct Var { unsigned int id; Var() { id = ++ids; } }; struct if_fun {}; struct program {}; struct VarName : proto::callable { typedef string result_type; template<typename T> result_type operator()(const Var<T> &v) { stringstream s; s << "V" << v.id; return string(s.str()); } result_type construct(string &l, string op, string &r) { return string(l + op + r); } result_type operator()(proto::tag::plus, string l, string r) { return construct(l, string(" + "), r); } result_type operator()(proto::tag::minus, string l, string r) { return construct(l, string(" - "), r); } result_type operator()(proto::tag::divides, string l, string r) { return construct(l, string(" / "), r); } result_type operator()(proto::tag::multiplies, string l, string r) { return construct(l, string(" * "), r); } result_type operator()(proto::tag::assign, string l, string r) { return string(construct(l, string(" = "), r) + string(";")); } result_type operator()(const int &x) { stringstream s; s << x; return string(s.str()); } result_type operator()(const if_fun&) { return string("if"); } result_type operator()(const program&) { return string("program"); } result_type operator()(proto::tag::function, string l, string r) { stringstream s; s << l << "(" << r << ")"; return string(s.str()); } result_type operator()(proto::tag::subscript, string l, string r) { stringstream s; s << l << " [\n"; s << r; s << "\n]\n"; return string(s.str()); } result_type operator()(proto::tag::comma, string l, string r) { stringstream s; s << l << "\n"; s << r; return string(s.str()); } }; struct napl_grammar; struct expr_grammar; struct bb_grammar; struct if_grammar : proto::or_< proto::when<proto::terminal<if_fun>, VarName(proto::_value)>, proto::when<proto::function<proto::terminal<if_fun>, expr_grammar>, VarName(proto::tag_of<proto::_expr>(), if_grammar(proto::_left), expr_grammar(proto::_right))> > { }; struct expr_grammar : proto::or_< proto::when<proto::plus< expr_grammar, expr_grammar>, VarName(proto::tag_of<proto::_expr>(), expr_grammar(proto::_left), expr_grammar(proto::_right))>, proto::when<proto::minus< expr_grammar, expr_grammar>, VarName(proto::tag_of<proto::_expr>(), expr_grammar(proto::_left), expr_grammar(proto::_right))>, proto::when<proto::multiplies< expr_grammar, expr_grammar>, VarName(proto::tag_of<proto::_expr>(), expr_grammar(proto::_left), expr_grammar(proto::_right))>, proto::when<proto::divides< expr_grammar, expr_grammar>, VarName(proto::tag_of<proto::_expr>(), expr_grammar(proto::_left), expr_grammar(proto::_right))>, proto::when<proto::assign< proto::terminal<Var<int> >, expr_grammar>, VarName(proto::tag_of<proto::_expr>(), expr_grammar(proto::_left), expr_grammar(proto::_right))>, proto::when<proto::terminal<Var<int> >, VarName(proto::_value)>, proto::when<proto::terminal<int>, VarName(proto::_value)>, proto::when<proto::subscript<if_grammar, bb_grammar>, VarName(proto::tag_of<proto::_expr>(), if_grammar(proto::_left), bb_grammar(proto::_right))> > { }; struct bb_grammar : proto::or_< proto::when<expr_grammar, expr_grammar(proto::_expr)>, proto::when<proto::comma<bb_grammar, expr_grammar>, VarName(proto::tag_of<proto::_expr>(), bb_grammar(proto::_left), expr_grammar(proto::_right))> > { }; struct napl_grammar : proto::or_< proto::when<proto::terminal<program>, VarName(proto::_value)>, proto::when<proto::subscript<proto::terminal<program>, bb_grammar>, VarName(proto::tag_of<proto::_expr>(), napl_grammar(proto::_left), bb_grammar(proto::_right))> > { }; template<typename Expr> void check_grammar(const Expr &e) { BOOST_MPL_ASSERT_MSG((proto::matches<Expr, napl_grammar>::value), SYNTAX_NOT_CORRECT, (void)); cout << napl_grammar()(e) << "\n"; } template<typename Expr> void check_if_grammar(const Expr&) { BOOST_MPL_ASSERT_MSG((proto::matches<Expr, if_grammar>::value), IF_SYNTAX_NOT_CORRECT, (if_grammar)); } template<typename Expr> void check_expr_grammar(const Expr &e) { BOOST_MPL_ASSERT_MSG((proto::matches<Expr, expr_grammar>::value), EXPR_SYNTAX_NOT_CORRECT, (expr_grammar)); cout << expr_grammar()(e) << "\n"; } template<typename Expr> void check_bb_grammar(const Expr &e) { BOOST_MPL_ASSERT_MSG((proto::matches<Expr, bb_grammar>::value), BB_SYNTAX_NOT_CORRECT, (bb_grammar)); cout << bb_grammar()(e) << "\n"; } int main() { proto::terminal<Var<int> >::type i1, i2, i3, i4, i5; proto::terminal<program>::type Program; proto::terminal<if_fun>::type if_; check_grammar( Program[ i2 = 1 + i2, i3 = i3 * i3, i3=i4/i4, i3=i5-23, if_(i1) [ i2=1, i2, if_(i2) [ i3=1, i3=i5, if_(i3) [ i1=1, i4=42+i4 ] ] ] ] ); /* check_if_grammar( if_(i1)); check_bb_grammar((i4=i1+i2+42, i2=2, i3=i2/42, if_(i1)[i2=3, i3=0])); */ }

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Newbie: Compiling Boost 1.28.0 or later for 64-bit Solaris 10
by Gregory Tyler 27 Jan '10

27 Jan '10

Hi, I'm new to Boost, and I have not used C++ in years. I have been asked to determine whether Boost 1.28.0 (or a later version, if necessary) can be compiled for 64-bit Solaris 10, and if so, then what precautions must be taken. I found this page, which seems to suggest that Boost cannot currently be compiled for Solaris 10: http://groups.google.com/group/boost-list/browse_thread/thread/091716aaf543… On the other hand, this page seem to suggest that it is possible: http://shoaibmir.wordpress.com/2009/08/12/building-boost-under-solaris/ Does anyone have any advice or suggestions? If it matters, I have a Java/JEE background. Thanks in advance, Greg _________________________________________________________________ Hotmail: Trusted email with Microsoft’s powerful SPAM protection. http://clk.atdmt.com/GBL/go/196390706/direct/01/

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