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Boost.org assign module

Home Page: http://boost.org/libs/assign

License: Boost Software License 1.0

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assign's Issues

MSVC 2012 build error

Admittedly this could just be a bad compiler, but this fails during CI testing.
https://ci.appveyor.com/project/jeking3/assign/build/1.0.2-develop/job/2j92ev1wnrpe677d#L1780

libs\assign\test\multi_index_container.cpp(123) : error C2440: 'initializing' : cannot convert from 'boost::assign_detail::generic_list<employee>' to 'boost::multi_index::multi_index_container<employee,boost::multi_index::indexed_by<boost::multi_index::ordered_unique<boost::multi_index::identity<employee>,boost::mpl::na,boost::mpl::na>,boost::multi_index::ordered_non_unique<boost::multi_index::tag<name,by_name,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na>,boost::multi_index::member<employee,std::string,pointer-to-member(0x4)>,boost::mpl::na>,boost::multi_index::ordered_non_unique<boost::multi_index::tag<age,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na>,boost::multi_index::member<employee,int,pointer-to-member(0x1c)>,boost::mpl::na>,boost::multi_index::sequenced<boost::multi_index::tag<as_inserted,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na>>,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na>,std::allocator<Value>>'
        with
        [
            Value=employee
        ]
        No constructor could take the source type, or constructor overload resolution was ambiguous
libs\assign\test\multi_index_container.cpp(138) : error C2440: 'initializing' : cannot convert from 'boost::assign_detail::generic_list<std::string>' to 'boost::multi_index::multi_index_container<std::string,boost::multi_index::indexed_by<boost::multi_index::sequenced<boost::multi_index::tag<boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na>>,boost::multi_index::ordered_non_unique<boost::multi_index::identity<std::string>,boost::mpl::na,boost::mpl::na>,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na>,std::allocator<_Ty>>'
        with
        [
            _Ty=std::string
        ]
        No constructor could take the source type, or constructor overload resolution was ambiguous
    call "bin.v2\standalone\msvc\msvc-12.0\msvc-setup.bat" x86 >nul
 cl /Zm800 -nologo @"bin.v2\libs\assign\test\multi_index_container.test\msvc-12.0\release\cxxstd-03-iso\threading-multi\multi_index_container.obj.rsp" 
...failed compile-c-c++ bin.v2\libs\assign\test\multi_index_container.test\msvc-12.0\release\cxxstd-03-iso\threading-multi\multi_index_container.obj...

Is this use of operator+= legitimate?

I am Debian's maintainer for Boost packages.

In https://gitlab.com/hepcedar/rivet/-/blob/master/src/Tools/RivetPaths.cc#L58 Boost.Assign's operator+= is used on std::vector<std::string> and std::vector<std::string>. It used to compile with Boost 1.67, but it doesn't any more with Boost 1.71. The error is

In file included from /usr/include/boost/assign/std/vector.hpp:18,
                 from /usr/include/boost/assign/std.hpp:18,
                 from /usr/include/boost/assign.hpp:19,
                 from ../../include/Rivet/RivetBoost.hh:6,
                 from ../../include/Rivet/Math/MathUtils.hh:6,
                 from ../../include/Rivet/Rivet.hh:42,
                 from RivetPaths.cc:1:
/usr/include/boost/assign/list_inserter.hpp: In instantiation of 'void boost::assign_detail::call_push_back<C>::operator()(T&&) [with T = std::vector<std::__cxx11::basic_string<char> >; C = std::vector<std::__cxx11::basic_string<char> >]':
/usr/include/boost/assign/list_inserter.hpp:414:13:   required from 'void boost::assign::list_inserter<Function, Argument>::insert(boost::assign::list_inserter<Function, Argument>::single_arg_type, T&&) [with T = std::vector<std::__cxx11::basic_string<char> >; Function = boost::assign_detail::call_push_back<std::vector<std::__cxx11::basic_string<char> > >; Argument = std::__cxx11::basic_string<char>]'
/usr/include/boost/assign/list_inserter.hpp:406:13:   required from 'boost::assign::list_inserter<Function, Argument>& boost::assign::list_inserter<Function, Argument>::operator()(Ts&& ...) [with Ts = {std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > >}; Function = boost::assign_detail::call_push_back<std::vector<std::__cxx11::basic_string<char> > >; Argument = std::__cxx11::basic_string<char>]'
/usr/include/boost/assign/std/vector.hpp:42:30:   required from 'boost::assign::list_inserter<boost::assign_detail::call_push_back<std::vector<_Tp, _Alloc> >, V> boost::assign::operator+=(std::vector<_Tp, _Alloc>&, V2&&) [with V = std::__cxx11::basic_string<char>; A = std::allocator<std::__cxx11::basic_string<char> >; V2 = std::vector<std::__cxx11::basic_string<char> >]'
RivetPaths.cc:57:28:   required from here
/usr/include/boost/assign/list_inserter.hpp:91:13: error: no matching function for call to 'std::vector<std::__cxx11::basic_string<char> >::push_back(std::vector<std::__cxx11::basic_string<char> >)'
   91 |             c_.push_back(boost::forward<T>(r));
      |             ^~
In file included from /usr/include/c++/9/vector:67,
                 from ../../include/Rivet/RivetSTL.hh:11,
                 from ../../include/Rivet/Rivet.hh:8,
                 from RivetPaths.cc:1:
/usr/include/c++/9/bits/stl_vector.h:1184:7: note: candidate: 'void std::vector<_Tp, _Alloc>::push_back(const value_type&) [with _Tp = std::__cxx11::basic_string<char>; _Alloc = std::allocator<std::__cxx11::basic_string<char> >; std::vector<_Tp, _Alloc>::value_type = std::__cxx11::basic_string<char>]'
 1184 |       push_back(const value_type& __x)
      |       ^~~~~~~~~
/usr/include/c++/9/bits/stl_vector.h:1184:35: note:   no known conversion for argument 1 from 'std::vector<std::__cxx11::basic_string<char> >' to 'const value_type&' {aka 'const std::__cxx11::basic_string<char>&'}
 1184 |       push_back(const value_type& __x)
      |                 ~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/9/bits/stl_vector.h:1200:7: note: candidate: 'void std::vector<_Tp, _Alloc>::push_back(std::vector<_Tp, _Alloc>::value_type&&) [with _Tp = std::__cxx11::basic_string<char>; _Alloc = std::allocator<std::__cxx11::basic_string<char> >; std::vector<_Tp, _Alloc>::value_type = std::__cxx11::basic_string<char>]'
 1200 |       push_back(value_type&& __x)
      |       ^~~~~~~~~
/usr/include/c++/9/bits/stl_vector.h:1200:30: note:   no known conversion for argument 1 from 'std::vector<std::__cxx11::basic_string<char> >' to 'std::vector<std::__cxx11::basic_string<char> >::value_type&&' {aka 'std::__cxx11::basic_string<char>&&'}
 1200 |       push_back(value_type&& __x)
      |                 ~~~~~~~~~~~~~^~~

Is this use of operator+= legitimate? I can't find it in the documentation, but since it used to work I am wondering if the bug here is in Boost or in the using code.

Thanks.

Modular Boost C++ Libraries Request

We are in the process of making B2 build changes to all of the B2 build files
to support "modular" consumption of the Boost Libraries by users. See this list
post for some details: https://lists.boost.org/Archives/boost/2024/01/255704.php

The process requires making a variety of changes to make each Boost library
independent of the super-project structure. But the changes do not remove the
super-project structure or the comprehensive Boost release. The changes make
solely make it possible, optionally, for users, like package manages, to easily
consume libraries individually.

Generally the changes include:

Adding a libroot/build.jam.
Porting any functionality from libroot/jamfile to libroot/build.jam.
Moving boost-install declaration from libroot/build/jamfile is applicable.
Adjusting other B2 build files in the library, like test/jamfile, as needed.
Possible changes to C++ source files to remove includes relative to the
super-project boostroot location.

Some examples of such changes:

We are asking how you would like us to handle the changes. We would prefer if
you allow the owners of the Boost.org GitHub project to make changes to B2
build files, as needed, to accomplish the changes. But understand
that you may want to manage the proposed changes yourself.

We previously sent emails to all known maintainers to fill out a form with their
preference. We are contacting you in this issue as we have not gotten a response
to that email. You can see the ongoing responses for that form and the responses
to these issues here https://github.com/users/grafikrobot/projects/1/views/6

We are now asking if you can reply directly to this issue to indicate your
preference of handling the changes. Please supply a response to this question
and close the issue (so that we can verify you are a maintainer).

How would you like the build changes to be processed?

Pull request, reviewed and merged by a BOOSTORG OWNER.
Pull request, reviewed and merged by YOU.
Other. (please specify details in the reply)

Also please indicate any special instructions you want us to consider. Or other
information you want us to be aware of.

Thanks you, René

For example, list_of works with boost::array, but not std::array.

gcc-4.4 and gcc-4.6 were broken by #6

#6 broke older compilers

This drove addition of older compilers into CI.

per discussion, Boost.Config claims these compilers support variadic templates but their support is incomplete, and we need to do something special here. See discussion on #6.

Also see #6 (comment)

boostorg / assign Goto Github PK

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assign's Issues

Release notes for 1.69.0

MSVC 2012 build error

Is this use of operator+= legitimate?

Modular Boost C++ Libraries Request

missing override in assignment_exception::what()

Add build logic to load each header independently to make sure it compiles

Please merge the 'develop' branch change into 'master' for the Boost 1.75 release

Assign support for std::array

gcc-4.4 and gcc-4.6 were broken by #6

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