quaternion = quaternion problem

[afraidofdark]

hello, I use visual studio 2008. In one of my project, I create two quaternion lets say Quaternion a, b;
than a = b; this line gives error

\..\Amazing3d\AmzMain\source\amzEntity.cpp(11) : error C2243: 'type cast' : conversion from 'amz::Quaternion *' to 'const vmml::vector<M,T> &' exists, but is inaccessible
1>        with
1>        [
1>            M=4,
1>            T=float
1>        ]

Quaternion is a typedef  "typedef vmml::quaternion<float> Quaternion;"

I looked at quaternion.hpp file and found this

template < typename T >
class quaternion : [b]private[/b] vector< 4, T >
{
public:
    typedef vector< 4, T >  super;
    using super::operator();
    using super::operator=;

= operator comes from vector<4,T> but it inherited as private, I believe this is the source of error. I change it to public and my code worked fine, before going any further with this change, I just wanted to ask you about this.

[afraidofdark]

I figured this out, changing from private to public is such a bad idea ( cause it seems that this change will allow quaternion to access all vector's public functionality ) however I still don't know why I get this error ?

it says quaternion* however left hand side is not even a pointer

Quaternion a,b;
a=b; this line generates the same error. Even in "quaternion_test.cpp" same error happens.

[afraidofdark]

this is my most innocent attempt to solve problem

    //using super::operator=;
    quaternion& operator= (const quaternion& other) {
         memcpy( array, other.array, 4 * sizeof( T ) );
        return *this;
    }

it works for me.

I also add these two line to vmmlib_config.hpp

#undef max
#undef min

because of these warnings

2>D:\amz\Amazing3d\Dependencies\vmmlib/matrix.hpp(2496) : warning C4003: not enough actual parameters for macro 'max'
2>D:\amz\Amazing3d\Dependencies\vmmlib/matrix.hpp(2497) : warning C4003: not enough actual parameters for macro 'min'

[Jonas Boesch]

Thanks, I added some explicit quat and vec4 operator= and operator== and operator!=.