Actually, there is no code to reproduce this. The errors occur within one of the projects which complies ok with boost 1.36.0. I am not yet sure how does boost.function get referenced through the headers or what might have changed in boost 1.37 compared to 1.36 headers Dhruva Krishnamurthy-2 wrote:

Could you possibly send a small reproducer code. Since I have a setup of BOOST 1.37 with MSVC, MinGW and on GNU/Linux, I can test it.

-dhruva

2008/12/13 Amit Sonawane :

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Environment:

WinXP SP2/Visual Studio Team System 2005/Boost 1.37.0 32-bit

Using boost.function in Boost 1.37.0 generates several errors. Compiler extract :

28>c:\software\boost\boost_1_37_0\boost_1_37_0\boost\function\function_template.hpp(80) : error C2143: syntax error : missing ';' before 'namespace'

28>c:\software\boost\boost_1_37_0\boost_1_37_0\boost\function\function_template.hpp(980) : error C2838: '()' : illegal qualified name in member declaration

28> c:\software\boost\boost_1_37_0\boost_1_37_0\boost\function\function_template.hpp(80) : see reference to class template instantiation 'boost::function0<R>' being compiled

28>c:\software\boost\boost_1_37_0\boost_1_37_0\boost\function\function_template.hpp(995) : error C2804: binary 'operator ==' has too many parameters

28>c:\software\boost\boost_1_37_0\boost_1_37_0\boost\function\function_template.hpp(1002) : error C2804: binary 'operator !=' has too many parameters

28>c:\software\boost\boost_1_37_0\boost_1_37_0\boost\function\function_template.hpp(1098) : error C2764: 'R' : template parameter not used or deducible in partial specialization 'boost::function'

28>c:\software\boost\boost_1_37_0\boost_1_37_0\boost\function\function_template.hpp(1098) : error C3412: 'boost::function' : cannot specialize template in current scope

28>c:\software\boost\boost_1_37_0\boost_1_37_0\boost\function\function_template.hpp(90) : error C2061: syntax error : identifier 'function_buffer'

28> c:\software\boost\boost_1_37_0\boost_1_37_0\boost\function\function_template.hpp(96) : see reference to class template instantiation 'boost::boost::detail::function::function_invoker1' being compiled

28>c:\software\boost\boost_1_37_0\boost_1_37_0\boost\function\function_template.hpp(106) : error C2061: syntax error : identifier 'function_buffer'

28> c:\software\boost\boost_1_37_0\boost_1_37_0\boost\function\function_template.hpp(113) : see reference to class template instantiation 'boost::boost::detail::function::void_function_invoker1' being compiled

In Boost 1.36.0 the code complies ok. Is it boost function or my code.

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OvermindDL1 writes: (...)

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28>c:\software\boost\boost_1_37_0\boost_1_37_0\boost\function \function_template.hpp(80)

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: error C2143: syntax error : missing ';' before 'namespace'

28>c:\software\boost\boost_1_37_0\boost_1_37_0\boost\function \function_template.hpp(980)

...

: error C2838: '()' : illegal qualified name in member declaration

28>

c:\software\boost\boost_1_37_0\boost_1_37_0\boost\function \function_template.hpp(80)

...

: see reference to class template instantiation 'boost::function0<R>' being compiled

28>c:\software\boost\boost_1_37_0\boost_1_37_0\boost\function \function_template.hpp(995)

...

: error C2804: binary 'operator ==' has too many parameters

28>c:\software\boost\boost_1_37_0\boost_1_37_0\boost\function \function_template.hpp(1002)

...

: error C2804: binary 'operator !=' has too many parameters

(...) I'm getting the same error with msvc9. Here's all that's needed to repro: #include I get 100+ compilation errors prior to getting to any non-boost code, starting with this error: \import\boost_1_37_0\include\boost/function/function_template.hpp(80) : error C2143: syntax error : missing ';' before 'namespace' I suspect a configuration error; I've looked at BOOST_FUNCTION_NUM_ARGS and other definitions. Adding a pragma once in some of the boost headers gets me past the first error, but the rest remain. Reverting back to the original, with functional.hpp included first, compiling with /p option shows (which expands macros) the following output (skipped ahead to relevant parts, ellipsis added to cut out some noise (more filename listings)): namespace boost { #line 23 \import\\boost_1_37_0\\include\\boost/type_traits/is_void.hpp template< typename T > struct is_void : ::boost::integral_constant { }; template<> struct is_void< void > : ::boost::integral_constant { }; template<> struct is_void< void const > : ::boost::integral_constant { }; template<> struct is_void< void volatile > : ::boost::integral_constant { }; template<> struct is_void< void const volatile > : ::boost::integral_constant { }; #line 31 \import\\boost_1_37_0\\include\\boost/type_traits/is_void.hpp #line 33 \import\\boost_1_37_0\\include\\boost/type_traits/is_void.hpp } #line 1 \import\\boost_1_37_0\\include\\boost/type_traits/detail /bool_trait_undef.hpp" #line 37 \import\\boost_1_37_0\\include\\boost/type_traits/is_void.hpp #line 39 \import\\boost_1_37_0\\include\\boost/type_traits/is_void.hpp (...) #line 1 \import\\boost_1_37_0\\include\\boost/function/function_template.hpp #line 1 \import\\boost_1_37_0\\include\\boost/function/detail/prologue.hpp #line 14 \import\\boost_1_37_0\\include\\boost/function/function_template.hpp #pragma warning( push ) #pragma warning( disable : 4127 ) #line 19 \import\\boost_1_37_0\\include\\boost/function/function_template.hpp #line 41 \import\\boost_1_37_0\\include\\boost/function/function_template.hpp #line 79 \import\\boost_1_37_0\\include\\boost/function/function_template.hpp namespace boost { namespace detail { namespace function { template< typename FunctionPtr, typename R > struct function_invoker0 { static R invoke(function_buffer& function_ptr ) { FunctionPtr f = reinterpret_cast<FunctionPtr>(function_ptr.func_ptr); return f(); } }; template< typename FunctionPtr, typename R (...) And the first error is at line 80, ("namespace boost") as in the original posting. Any help would be greatly appreciated. Thanks.