AcDbObject derived class in a vector container

[Anonymous]

i am currently developing a custom dbr object. in the application of this
object i have to place in in an stl vector container but at compile time it
spits out an error every time i try to use the vector::push_back() function.

the error reads something to the effect new operator does not take 2
paramiters.

i need to know what a quick and easy fix would be.

[Anonymous]

Can you show us the context of the problem. Without knowing your
intentions, I would recommend using AcDbObjectId's in your vector.

|
----+----------------------------------------------
| Byron Blattel
| CADwerx---Applications for AutoCAD
| Autodesk Registered Developer
| email: byron@cadwerx.net
| web site: http://www.cadwerx.net
|

"Justus" wrote in message
news:BDFF1B0DDA6E96EE6A9071D28AF9635D@in.WebX.maYIadrTaRb...
> i am currently developing a custom dbr object. in the application of this
> object i have to place in in an stl vector container but at compile time
it
> spits out an error every time i try to use the vector::push_back()
function.
>
> the error reads something to the effect new operator does not take 2
> paramiters.
>
> i need to know what a quick and easy fix would be.
>
>

[Anonymous]

class myClass : AcDbObject {
//...
};

//...
void main() {
std::vector myClassVector;
myClass stuff;

myClassVector.push_back(stuff); // causes error
}

the error is generated when the Allocator object calls the new funtion to
store myClass. the error reads new does not take 2 paramiters.

myClass has all nessisary functions to work in stl containers(copy
constructor, comairison, assignment, ect.)

[Anonymous]

Is myClass derived from AcDbObject or AcDbEntity? If so then you should use
myClass pointers or AcDbObjectId's in your container.

If not, are you getting a complier error or a crash when push_back() is
reached. The error you indicate is a compiler error which suggests that
your copy constructor is not properly implemented. Since the allocator
creates another copy of the object, you are also doubling your memory
allocation/free cycle. Wouldn't it be better to create it on the heap (via
new) and delete it at the appropriate time?

|
----+----------------------------------------------
| Byron Blattel
| CADwerx---Applications for AutoCAD
| Autodesk Registered Developer
| email: byron@cadwerx.net
| web site: http://www.cadwerx.net
|

"Justus" wrote in message
news:5B2F0DB37CF79F0639B2279FEE31A73B@in.WebX.maYIadrTaRb...
> class myClass : AcDbObject {
> //...
> };
>
> //...
> void main() {
> std::vector myClassVector;
> myClass stuff;
>
> myClassVector.push_back(stuff); // causes error
> }
>
> the error is generated when the Allocator object calls the new funtion to
> store myClass. the error reads new does not take 2 paramiters.
>
> myClass has all nessisary functions to work in stl containers(copy
> constructor, comairison, assignment, ect.)
>
>
>
>

[Anonymous]

Make sure that your header files are being compiled in release mode, i.e.
when you include MFC/CRT/STL headers make sure that the appropriate
preprocessor symbols are defined e.g. _DEBUG is not defined.

Joel

"Justus" wrote in message
news:BDFF1B0DDA6E96EE6A9071D28AF9635D@in.WebX.maYIadrTaRb...
> i am currently developing a custom dbr object. in the application of this
> object i have to place in in an stl vector container but at compile time
it
> spits out an error every time i try to use the vector::push_back()
function.
>
> the error reads something to the effect new operator does not take 2
> paramiters.
>
> i need to know what a quick and easy fix would be.
>
>

[Anonymous]

even with a release build the comiler complains that there is a problem when
ever i use vector::push_back(). more specifically when the allocator object
of vector calls the new fuction here

template inline
void _Construct(_T1 _FARQ *_P, const _T2& _V)
{new ((void _FARQ *)_P) _T1(_V); }

i think i need to make an new new operator that is compatible with this call
but dont know how.

"Joel Matthias" wrote in message
news:349161E76116F92F5C8ABA3E51B13BD8@in.WebX.maYIadrTaRb...
> Make sure that your header files are being compiled in release mode, i.e.
> when you include MFC/CRT/STL headers make sure that the appropriate
> preprocessor symbols are defined e.g. _DEBUG is not defined.
>
> Joel
>
> "Justus" wrote in message
> news:BDFF1B0DDA6E96EE6A9071D28AF9635D@in.WebX.maYIadrTaRb...
> > i am currently developing a custom dbr object. in the application of
this
> > object i have to place in in an stl vector container but at compile time
> it
> > spits out an error every time i try to use the vector::push_back()
> function.
> >
> > the error reads something to the effect new operator does not take 2
> > paramiters.
> >
> > i need to know what a quick and easy fix would be.
> >
> >
>
>

[Anonymous]

myClass is derived from AcDbObject as stated above.

the error occurs when ever i call vector::push_back() because push_back() in
turn uses the new opperator to create space to store the object in the
vector.

template inline
void _Construct(_T1 _FARQ *_P, const _T2& _V)
{new ((void _FARQ *)_P) _T1(_V); }

the above is the function called in the push_back function that causes the
error.

C:\Program Files\Microsoft Visual Studio\VC98\INCLUDE\xmemory(34) : error
C2660: 'new' : function does not take 2 parameters
C:\Program Files\Microsoft Visual Studio\VC98\INCLUDE\xmemory(66) :
see reference to function template instantiation 'void __cdecl
std::_Construct(class ar3dLayerProfile *,const class ar3dLayerProfile &)'
being compiled

so I think i need to write a custom new function to work with stl but i dont
know how to do this or even what the types it is asking for are.