[Boost-users] [units] User-defined vector class template won't compile

25 May 2010


      I'm trying to make a "simple" cartesian vector class.
It should be similar to the quaternion example that you give in the docs, 
but I can't get it to compile.
I've attached a complete program.
Here are the error I get when I try to compile it.
Lets just focus on fixing the first few errors about no binary '*'. When I 
understand that, perhaps I'll be able to fix the rest.

Thanks, terry

try.cpp
using native typeof
C:/boost/boost_1_43_0\boost/units/operators.hpp(74) : error C2678: binary 
'*' : no operator found which takes a left-hand operand of type 'double' (or 
there is no acceptable conversion)
        C:/boost/boost_1_43_0\boost/units/detail/one.hpp(47): could be 'T 
boost::units::operator *<T>(const boost::units::one &,const T &)'
        with
        [
            T=rci::cartesian::vector<3,double>
        ]
        C:/boost/boost_1_43_0\boost/units/detail/one.hpp(53): or       'T 
boost::units::operator *<double>(const T &,const boost::units::one &)'
        with
        [
            T=double
        ]
        C:/boost/boost_1_43_0\boost/units/detail/one.hpp(58): or 
'boost::units::one boost::units::operator *(const boost::units::one &,const 
boost::units::one &)'
        while trying to match the argument list '(double, 
rci::cartesian::vector<Dim,Rep>)'
        with
        [
            Dim=3,
            Rep=double
        ]
        C:/boost/boost_1_43_0\boost/units/operators.hpp(75) : see reference 
to class template instantiation 
'boost::units::multiply_typeof_helper<X,Y>::nested' being compiled
        with
        [
            X=double,
            Y=rci::cartesian::vector<3,double>
        ]
        C:/boost/boost_1_43_0\boost/units/quantity.hpp(690) : see reference 
to class template instantiation 'boost::units::multiply_typeof_helper<X,Y>' 
being compiled
        with
        [
            X=double,
            Y=rci::cartesian::vector<3,double>
        ]
        try.cpp(255) : see reference to class template instantiation 
'boost::units::multiply_typeof_helper<X,Y>' being compiled
        with
        [
            X=boost::units::quantity<boost::units::si::length>,
            Y=rci::cartesian::vector<3,double>
        ]
C:/boost/boost_1_43_0\boost/units/operators.hpp(74) : error C2866: 
'boost::units::multiply_typeof_helper<X,Y>::nested::_typeof_register_value' 
: a const static data member of a managed type must be initialized at the 
point of declaration
        with
        [
            X=double,
            Y=rci::cartesian::vector<3,double>
        ]
C:/boost/boost_1_43_0\boost/units/operators.hpp(74) : error C2027: use of 
undefined type 
'boost::type_of::msvc_extract_type<ID>::id2type_impl<__formal>'
        with
        [
            ID=boost::units::multiply_typeof_helper<double,rci::cartesian::vector<3,double>>::nested
        ]
        and
        [
            __formal=true
        ]
C:/boost/boost_1_43_0\boost/units/operators.hpp(74) : error C2146: syntax 
error : missing ';' before identifier 'type'
C:/boost/boost_1_43_0\boost/units/operators.hpp(74) : error C4430: missing 
type specifier - int assumed. Note: C++ does not support default-int
C:/boost/boost_1_43_0\boost/units/operators.hpp(74) : error C2602: 
'boost::units::multiply_typeof_helper<X,Y>::nested::type' is not a member of 
a base class of 'boost::units::multiply_typeof_helper<X,Y>::nested'
        with
        [
            X=double,
            Y=rci::cartesian::vector<3,double>
        ]
        C:/boost/boost_1_43_0\boost/units/operators.hpp(74) : see 
declaration of 'boost::units::multiply_typeof_helper<X,Y>::nested::type'
        with
        [
            X=double,
            Y=rci::cartesian::vector<3,double>
        ]
        C:/boost/boost_1_43_0\boost/units/operators.hpp(74) : see 
declaration of 'boost::units::multiply_typeof_helper<X,Y>::nested'
        with
        [
            X=double,
            Y=rci::cartesian::vector<3,double>
        ]
C:/boost/boost_1_43_0\boost/units/operators.hpp(74) : error C2868: 
'boost::units::multiply_typeof_helper<X,Y>::nested::type' : illegal syntax 
for using-declaration; expected qualified-name
        with
        [
            X=double,
            Y=rci::cartesian::vector<3,double>
        ]
try.cpp(255) : error C2679: binary '=' : no operator found which takes a 
right-hand operand of type 'boost::units::quantity<Unit,Y>' (or there is no 
acceptable conversion)
        with
        [
            Unit=boost::units::unit<boost::units::length_dimension,boost::units::si::system>,
            Y=int
        ]
        try.cpp(28): could be 'rci::cartesian::vector<Dim,Rep> 
&rci::cartesian::vector<Dim,Rep>::operator =(const 
rci::cartesian::vector<Dim,Rep> &)'
        with
        [
            Dim=3,
            Rep=boost::units::quantity<boost::units::si::length>
        ]
        while trying to match the argument list 
'(rci::cartesian::vector<Dim,Rep>, boost::units::quantity<Unit,Y>)'
        with
        [
            Dim=3,
            Rep=boost::units::quantity<boost::units::si::length>
        ]
        and
        [
            Unit=boost::units::unit<boost::units::length_dimension,boost::units::si::system>,
            Y=int
        ]

[Boost-users] [units] User-defined vector class template won't compile

Terry Golubiewski