Re: [Boost-users] [test] how to test std::pair with BOOST_TEST

Subject: Re: [Boost-users] [test] how to test std::pair with BOOST_TEST
From: Michael (mwpowellhtx_at_[hidden])
Date: 2016-05-29 08:20:18

On May 29, 2016 8:10:12 AM EDT, "Tan, Tom (Shanghai)" <TTan_at_[hidden]> wrote:
>The following snippet does not compile with VS2015 and boost 1.61. What
>should the correct way to do it? Thanks.

This is not a boost question per se. Besides, the solution is described in the error. Good luck.

>// compile with cl.exe /EHSc
>#define BOOST_TEST_MODULE pair
>#include <boost/test/included/unit_test.hpp>
>
>std::pair<uint32_t, uint32_t> v()
>{
>
>    return std::make_pair(0, 0);
>
>}
>
>BOOST_AUTO_TEST_CASE(range)
>{
>    BOOST_TEST(std::make_pair(0, 0) == v());
>}
>
>Here's the error message:
>C:\3rd\boost_1_61_0\boost/test/tools/assertion.hpp(163): error C2678:
>binary '==': no operator found which takes a left-hand operand of type
>'std::pair<int,int>' (or there is no acceptable conversion)
>C:\3rd\boost_1_61_0\boost/function/function_base.hpp(740): note: could
>be 'bool boost::operator ==(boost::detail::function::useless_clear_type
>*,const boost::function_base &)'
>C:\3rd\boost_1_61_0\boost/function/function_base.hpp(728): note: or    
>'bool boost::operator ==(const boost::function_base
>&,boost::detail::function::useless_clear_type *)'
>C:\Program Files (x86)\Microsoft Visual Studio
>14.0\VC\INCLUDE\exception(329): note: or       'bool
>std::operator ==(const std::exception_ptr &,const std::exception_ptr &)
>throw()' [found using argument-dependent lookup]
>C:\Program Files (x86)\Microsoft Visual Studio
>14.0\VC\INCLUDE\exception(334): note: or       'bool
>std::operator ==(std::nullptr_t,const std::exception_ptr &) throw()'
>[found using argument-dependent lookup]
>C:\Program Files (x86)\Microsoft Visual Studio
>14.0\VC\INCLUDE\exception(339): note: or       'bool
>std::operator ==(const std::exception_ptr &,std::nullptr_t) throw()'
>[found using argument-dependent lookup]
>C:\Program Files (x86)\Microsoft Visual Studio
>14.0\VC\INCLUDE\system_error(365): note: or       'bool std::operator
>==(const std::error_code &,const std::error_code &) noexcept' [found
>using argument-dependent lookup]
>C:\Program Files (x86)\Microsoft Visual Studio
>14.0\VC\INCLUDE\system_error(373): note: or       'bool std::operator
>==(const std::error_code &,const std::error_condition &) noexcept'
>[found using argument-dependent lookup]
>C:\Program Files (x86)\Microsoft Visual Studio
>14.0\VC\INCLUDE\system_error(381): note: or       'bool std::operator
>==(const std::error_condition &,const std::error_code &) noexcept'
>[found using argument-dependent lookup]
>C:\Program Files (x86)\Microsoft Visual Studio
>14.0\VC\INCLUDE\system_error(389): note: or       'bool std::operator
>==(const std::error_condition &,const std::error_condition &) noexcept'
>[found using argument-dependent lookup]
>C:\3rd\boost_1_61_0\boost/function/function_base.hpp(799): note: or    
>  'bool boost::operator ==<T>(Functor,const boost::function_base &)'
>        with
>        [
>            T=std::pair<int,int>,
>            Functor=std::pair<int,int>
>        ]
>C:\3rd\boost_1_61_0\boost/function/function_base.hpp(790): note: or    
>  'bool boost::operator ==<T>(const boost::function_base &,Functor)'
>        with
>        [
>            T=std::pair<uint32_t,uint32_t>,
>            Functor=std::pair<uint32_t,uint32_t>
>        ]
>C:\3rd\boost_1_61_0\boost/test/tools/assertion.hpp(163): note: while
>trying to match the argument list '(std::pair<int,int>,
>std::pair<uint32_t,uint32_t>)'
>C:\3rd\boost_1_61_0\boost/test/tools/assertion.hpp(326): note: see
>reference to class template instantiation
>'boost::test_tools::assertion::op::EQ<ValType,T,void>' being compiled
>        with
>        [
>            ValType=std::pair<int,int>,
>            T=std::pair<uint32_t,uint32_t>
>        ]
>s.cpp(14): note: see reference to class template instantiation
>'boost::test_tools::assertion::binary_expr<ExprType,std::pair<uint32_t,uint32_t>,boost::test_tools::assertion::op::EQ<ValType,T,void>>'
>being compiled
>        with
>        [
> ExprType=boost::test_tools::assertion::value_expr<std::pair<int,int>>,
>            ValType=std::pair<int,int>,
>            T=std::pair<uint32_t,uint32_t>
>        ]
>C:\3rd\boost_1_61_0\boost/test/tools/assertion.hpp(377): warning C4624:
>'boost::test_tools::assertion::binary_expr<ExprType,std::pair<uint32_t,uint32_t>,boost::test_tools::assertion::op::EQ<ValType,T,void>>':
>destructor was implicitly defined as deleted
>        with
>        [
> ExprType=boost::test_tools::assertion::value_expr<std::pair<int,int>>,
>            ValType=std::pair<int,int>,
>            T=std::pair<uint32_t,uint32_t>
>        ]
>
>
>------------------------------------------------------------------------
>
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