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Alessio Mochi

11 Jan 2022 11 Jan '22

10:22 a.m.

Hello, I can't resolve my exception when I compile my qt project with visual studio 2022. Error C2039 'throw_exception': is not a member of 'boost' DentalCad E:\boost_1_78_0\boost\serialization\throw_exception.hpp 30 I tried a compile a small example and work correctly without exception. I don't understand how solve the problem. Have you a suggest? Thanks in advance.

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John McCabe

11 Jan 11 Jan

2:51 p.m.

On 11/01/2022 10:22, Alessio Mochi via Boost-users wrote:

Hello, I can't resolve my exception when I compile my qt project with visual studio 2022.

Error C2039 'throw_exception': is not a member of 'boost' DentalCad E:\boost_1_78_0\boost\serialization\throw_exception.hpp 30

I tried a compile a small example and work correctly without exception. I don't understand how solve the problem. Have you a suggest?

That's the sort of error you normally get if you've included a header where the boost namespace is declared, but the header file where throw_exception is declared has not been included. Does Visual Studio have an include browser where you can see what the hierarchy of included headers are?

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Alessio Mochi

9:22 p.m.

Yes, this is a piece of included hierarchy error is show. Thanks in advance 1>Note: including file: E:\DentalCad2.0-x64-vs2022\Common\Lib\vcglib\vcg\space\deprecated_point3.h 1>Note: including file: C:\Program Files (x86)\Windows Kits\10\Include\10.0.19041.0\ucrt\assert.h 1>Note: including file: E:\boost_1_78_0\boost/archive/binary_iarchive.hpp 1>Note: including file: C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.30.30705\include\istream 1>Note: including file: C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.30.30705\include\ostream 1>Note: including file: C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.30.30705\include\ios 1>Note: including file: C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.30.30705\include\xlocnum 1>Note: including file: C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.30.30705\include\streambuf 1>Note: including file: C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.30.30705\include\xiosbase 1>Note: including file: C:\Program Files (x86)\Windows Kits\10\Include\10.0.19041.0\ucrt\share.h 1>Note: including file: C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.30.30705\include\system_error 1>Note: including file: C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.30.30705\include\__msvc_system_error_abi.hpp 1>Note: including file: C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.30.30705\include\cerrno 1>Note: including file: C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.30.30705\include\stdexcept 1>Note: including file: C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.30.30705\include\xcall_once.h 1>Note: including file: C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.30.30705\include\xerrc.h 1>Note: including file: C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.30.30705\include\atomic 1>Note: including file: C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.30.30705\include\xthreads.h 1>Note: including file: C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.30.30705\include\xtimec.h 1>Note: including file: C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.30.30705\include\ctime 1>Note: including file: C:\Program Files (x86)\Windows Kits\10\Include\10.0.19041.0\ucrt\time.h 1>Note: including file: C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.30.30705\include\xlocale 1>Note: including file: C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.30.30705\include\memory 1>Note: including file: C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.30.30705\include\xfacet 1>Note: including file: C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.30.30705\include\xlocinfo 1>Note: including file: C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.30.30705\include\__msvc_xlocinfo_types.hpp 1>Note: including file: C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.30.30705\include\clocale 1>Note: including file: C:\Program Files (x86)\Windows Kits\10\Include\10.0.19041.0\ucrt\locale.h 1>Note: including file: E:\boost_1_78_0\boost/archive/binary_iarchive_impl.hpp 1>Note: including file: E:\boost_1_78_0\boost/archive/basic_binary_iprimitive.hpp 1>Note: including file: E:\boost_1_78_0\boost/assert.hpp 1>Note: including file: C:\Program Files (x86)\Windows Kits\10\Include\10.0.19041.0\ucrt\assert.h 1>Note: including file: C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.30.30705\include\locale 1>Note: including file: C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.30.30705\include\xlocbuf 1>Note: including file: C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.30.30705\include\xlocmes 1>Note: including file: C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.30.30705\include\xlocmon 1>Note: including file: C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.30.30705\include\xloctime 1>Note: including file: E:\boost_1_78_0\boost/config.hpp 1>Note: including file: E:\boost_1_78_0\boost/config/user.hpp 1>Note: including file: E:\boost_1_78_0\boost/config/detail/select_compiler_config.hpp 1>Note: including file: E:\boost_1_78_0\boost/config/compiler/visualc.hpp 1>Note: including file: E:\boost_1_78_0\boost/config/pragma_message.hpp 1>Note: including file: E:\boost_1_78_0\boost/config/helper_macros.hpp 1>Note: including file: E:\boost_1_78_0\boost/config/detail/select_stdlib_config.hpp 1>Note: including file: C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.30.30705\include\version 1>Note: including file: E:\boost_1_78_0\boost/config/stdlib/dinkumware.hpp 1>Note: including file: E:\boost_1_78_0\boost/config/detail/select_platform_config.hpp 1>Note: including file: E:\boost_1_78_0\boost/config/platform/win32.hpp 1>Note: including file: E:\boost_1_78_0\boost/config/detail/suffix.hpp 1>Note: including file: E:\boost_1_78_0\boost/config/detail/cxx_composite.hpp 1>Note: including file: E:\boost_1_78_0\boost/config/detail/cxx_composite.hpp 1>Note: including file: E:\boost_1_78_0\boost/cstdint.hpp 1>Note: including file: E:\boost_1_78_0\boost/serialization/throw_exception.hpp 1>E:\boost_1_78_0\boost/serialization/throw_exception.hpp(30,14): error C2039: 'throw_exception': is not a member of 'boost' 1>E:\boost_1_78_0\boost/serialization/throw_exception.hpp(24): message : see declaration of 'boost' Il giorno mar 11 gen 2022 alle ore 15:54 John McCabe via Boost-users < boost-users@lists.boost.org> ha scritto:

On 11/01/2022 10:22, Alessio Mochi via Boost-users wrote:

...
Hello, I can't resolve my exception when I compile my qt project with visual studio 2022.

Error C2039 'throw_exception': is not a member of 'boost' DentalCad E:\boost_1_78_0\boost\serialization\throw_exception.hpp 30

I tried a compile a small example and work correctly without exception. I don't understand how solve the problem. Have you a suggest?

That's the sort of error you normally get if you've included a header where the boost namespace is declared, but the header file where throw_exception is declared has not been included.

Does Visual Studio have an include browser where you can see what the hierarchy of included headers are?

_______________________________________________ Boost-users mailing list Boost-users@lists.boost.org https://lists.boost.org/mailman/listinfo.cgi/boost-users

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Gavin Lambert

10:49 p.m.

On 12/01/2022 10:22, Alessio Mochi wrote:

Yes, this is a piece of included hierarchy error is show. Thanks in advance [...] 1>Note: including file: E:\boost_1_78_0\boost/serialization/throw_exception.hpp 1>E:\boost_1_78_0\boost/serialization/throw_exception.hpp(30,14): error C2039: 'throw_exception': is not a member of 'boost' 1>E:\boost_1_78_0\boost/serialization/throw_exception.hpp(24): message : see declaration of 'boost'

That error at that site suggests that you are compiling with BOOST_NO_EXCEPTIONS defined, which in turn means that you need to define boost::throw_exception yourself before including any boost headers to define what you want to happen when an exception is "thrown" anyway. (Typically a call to abort(), possibly among other things.) Otherwise, you should remove BOOST_NO_EXCEPTIONS and allow it to throw normally. If you're not defining this explicitly in your preprocessor options, check if you have disabled exceptions in your compiler options. I'm not really familiar with Qt but google suggests that some older versions of it disable exceptions by default, but that newer versions might not. Perhaps you need to upgrade.

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Alessio Mochi

12 Jan 12 Jan

9:04 a.m.

Hello Gavin, I have not defined BOOST_NO_EXCEPTIONS. I don't know why a small project with qt and boost serialization work and this one no. I tried to add #include before include the serialization header, I don't know if it's correct but seem to fix the problem Il giorno mer 12 gen 2022 alle ore 00:44 Gavin Lambert via Boost-users < boost-users@lists.boost.org> ha scritto:

On 12/01/2022 10:22, Alessio Mochi wrote:

...
Yes, this is a piece of included hierarchy error is show. Thanks in advance [...] 1>Note: including file: E:\boost_1_78_0\boost/serialization/throw_exception.hpp 1>E:\boost_1_78_0\boost/serialization/throw_exception.hpp(30,14): error C2039: 'throw_exception': is not a member of 'boost' 1>E:\boost_1_78_0\boost/serialization/throw_exception.hpp(24): message : see declaration of 'boost'

That error at that site suggests that you are compiling with BOOST_NO_EXCEPTIONS defined, which in turn means that you need to define boost::throw_exception yourself before including any boost headers to define what you want to happen when an exception is "thrown" anyway. (Typically a call to abort(), possibly among other things.)

Otherwise, you should remove BOOST_NO_EXCEPTIONS and allow it to throw normally.

If you're not defining this explicitly in your preprocessor options, check if you have disabled exceptions in your compiler options.

I'm not really familiar with Qt but google suggests that some older versions of it disable exceptions by default, but that newer versions might not. Perhaps you need to upgrade. _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org https://lists.boost.org/mailman/listinfo.cgi/boost-users

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John Maddock

9:12 a.m.

On 12/01/2022 09:04, Alessio Mochi via Boost-users wrote:

Hello Gavin, I have not defined BOOST_NO_EXCEPTIONS. I don't know why a small project with qt and boost serialization work and this one no. I tried to add #include before include the serialization header, I don't know if it's correct but seem to fix the problem

What happens if at the very start of your cpp file you add: #include #ifdef BOOST_NO_EXCEPTIONS #error "Oooops" #endf Does the #error get hit?

Il giorno mer 12 gen 2022 alle ore 00:44 Gavin Lambert via Boost-users ha scritto:

On 12/01/2022 10:22, Alessio Mochi wrote: > Yes, this is a piece of included hierarchy error is show. Thanks in advance [...] > 1>Note: including file: > E:\boost_1_78_0\boost/serialization/throw_exception.hpp > 1>E:\boost_1_78_0\boost/serialization/throw_exception.hpp(30,14): error > C2039: 'throw_exception': is not a member of 'boost' > 1>E:\boost_1_78_0\boost/serialization/throw_exception.hpp(24): message : > see declaration of 'boost'

That error at that site suggests that you are compiling with BOOST_NO_EXCEPTIONS defined, which in turn means that you need to define boost::throw_exception yourself before including any boost headers to define what you want to happen when an exception is "thrown" anyway. (Typically a call to abort(), possibly among other things.)

Otherwise, you should remove BOOST_NO_EXCEPTIONS and allow it to throw normally.

If you're not defining this explicitly in your preprocessor options, check if you have disabled exceptions in your compiler options.

I'm not really familiar with Qt but google suggests that some older versions of it disable exceptions by default, but that newer versions might not. Perhaps you need to upgrade. _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org https://lists.boost.org/mailman/listinfo.cgi/boost-users

_______________________________________________ Boost-users mailing list Boost-users@lists.boost.org https://lists.boost.org/mailman/listinfo.cgi/boost-users

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Alessio Mochi

9:31 a.m.

Hello John, I tried I get no error. Il giorno mer 12 gen 2022 alle ore 10:12 John Maddock via Boost-users < boost-users@lists.boost.org> ha scritto:

On 12/01/2022 09:04, Alessio Mochi via Boost-users wrote:

...
Hello Gavin, I have not defined BOOST_NO_EXCEPTIONS. I don't know why a small project with qt and boost serialization work and this one no. I tried to add #include before include the serialization header, I don't know if it's correct but seem to fix the problem

What happens if at the very start of your cpp file you add:

#include

#ifdef BOOST_NO_EXCEPTIONS

#error "Oooops"

#endf

Does the #error get hit?

...
Il giorno mer 12 gen 2022 alle ore 00:44 Gavin Lambert via Boost-users ha scritto:

On 12/01/2022 10:22, Alessio Mochi wrote: > Yes, this is a piece of included hierarchy error is show. Thanks in advance [...] > 1>Note: including file: > E:\boost_1_78_0\boost/serialization/throw_exception.hpp > 1>E:\boost_1_78_0\boost/serialization/throw_exception.hpp(30,14): error > C2039: 'throw_exception': is not a member of 'boost' > 1>E:\boost_1_78_0\boost/serialization/throw_exception.hpp(24): message : > see declaration of 'boost'

That error at that site suggests that you are compiling with BOOST_NO_EXCEPTIONS defined, which in turn means that you need to define boost::throw_exception yourself before including any boost headers to define what you want to happen when an exception is "thrown" anyway. (Typically a call to abort(), possibly among other things.)

Otherwise, you should remove BOOST_NO_EXCEPTIONS and allow it to throw normally.

If you're not defining this explicitly in your preprocessor options, check if you have disabled exceptions in your compiler options.

I'm not really familiar with Qt but google suggests that some older versions of it disable exceptions by default, but that newer versions might not. Perhaps you need to upgrade. _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org https://lists.boost.org/mailman/listinfo.cgi/boost-users

_______________________________________________ Boost-users mailing list Boost-users@lists.boost.org https://lists.boost.org/mailman/listinfo.cgi/boost-users

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_______________________________________________ Boost-users mailing list Boost-users@lists.boost.org https://lists.boost.org/mailman/listinfo.cgi/boost-users

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John McCabe

10:42 a.m.

On 12/01/2022 09:04, Alessio Mochi via Boost-users wrote:

Hello Gavin, I have not defined BOOST_NO_EXCEPTIONS.

Interesting. The place where you're getting the compilation error is within this section: #ifndef BOOST_NO_EXCEPTIONS #include <exception> #endif namespace boost { namespace serialization { #ifdef BOOST_NO_EXCEPTIONS BOOST_NORETURN inline void throw_exception(std::exception const & e) { ::boost::throw_exception(e); } #else template<class E> BOOST_NORETURN inline void throw_exception(E const & e){ throw e; } #endif } // namespace serialization } // namespace boost so BOOST_NO_EXCEPTIONS must be getting declared somewhere, which is borne out by the include list you provided not showing "exception" in there (at least, not that I can see). There is a declaration of boost::throw_exception in , so adding that before your include of may be appropriate to avoid the compilation error, however that file includes the following code: namespace boost { #if defined( BOOST_NO_EXCEPTIONS ) BOOST_NORETURN void throw_exception( std::exception const & e ); // user defined BOOST_NORETURN void throw_exception( std::exception const & e, boost::source_location const & loc ); // user defined #endif where "user defined" sounds to me (not that I've used it, but..) like you need to define your own implementations of those functions (or you may end up with an undefined symbol error from the linker.

I don't know why a small project with qt and boost serialization work and this one no. I tried to add #include before include the serialization header, I don't know if it's correct but seem to fix the problem

all.hpp is as here - https://www.boost.org/doc/libs/1_78_0/boost/exception/all.hpp, which includes , where throw_exception is also declared. It's probably worth taking a look at this page: https://www.boost.org/doc/libs/1_78_0/libs/throw_exception/doc/html/throw_ex... but also worth trying to track down where/why BOOST_NO_EXCEPTIONS is defined if you think it's wrong.

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John Maddock

4:34 p.m.

On 12/01/2022 09:04, Alessio Mochi via Boost-users wrote:

Hello Gavin, I have not defined BOOST_NO_EXCEPTIONS.

Ahhh, looks like our bug, I've just filed a PR to fix this here: https://github.com/boostorg/serialization/pull/250 The minimal header to #include prior to whatever serialization header you're using is boost/throw_exception.hpp BTW. Serialization should be doing that anyway but isn't :( The reason this hasn't been spotted until now, is that boost/throw_exception.hpp gets #included by very nearly everything in boost so it's an easy one to miss. HTH, John. -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus

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Alessio Mochi

13 Jan 13 Jan

2:07 p.m.

I don't understand why in another small project with qt and where I use boost serialization I get no exception without include boost/throw_exception.hpp Il giorno mer 12 gen 2022 alle ore 17:35 John Maddock via Boost-users < boost-users@lists.boost.org> ha scritto:

On 12/01/2022 09:04, Alessio Mochi via Boost-users wrote:

...
Hello Gavin, I have not defined BOOST_NO_EXCEPTIONS.

Ahhh, looks like our bug, I've just filed a PR to fix this here: https://github.com/boostorg/serialization/pull/250

The minimal header to #include prior to whatever serialization header you're using is boost/throw_exception.hpp BTW. Serialization should be doing that anyway but isn't :(

The reason this hasn't been spotted until now, is that boost/throw_exception.hpp gets #included by very nearly everything in boost so it's an easy one to miss.

HTH, John.

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Gavin Lambert

11:46 p.m.

On 14/01/2022 03:07, Alessio Mochi wrote:

I don't understand why in another small project with qt and where I use boost serialization I get no exception without include boost/throw_exception.hpp

Do the same trick to get the list of includes in the working project. See what's different between the two. Most likely, you're also including some other Boost header file that does include throw_exception.hpp, as John said before.

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Alessio Mochi
Gavin Lambert
John Maddock
John McCabe