[Boost-users] a question on correct way to assign using scoped_array

From: Adam Peterson (adamw_at_[hidden])
Date: 2004-12-30 14:46:50

Essentially, I'm passing a function a scoped_array and I want to assign data
to it.  It seems like there isn't a way to copy a chunk of data to the
scoped_array except when it is created.  Functionaly I'm where I want to be,
but I'm thinking I must be misunderstanding the correct way to do this.  I'm
getting the data from a DLL that allocates its own memory, so I have to copy
the data locally, then call the DLL's function to release the memory.  Is
this the best way to accomplish what I'm after?

Thanks,
Adam

This is currently how I'm doing it:

function blah(...., scoped_array<APPRIGHTITEM>& saGroups  )
{
 LPAPPRIGHTITEM  lpAppRightItemList = NULL;

 get_my_data( &lpAppRightItemList, &dwCount );

 LPAPPRIGHTITEM  sap = (LPAPPRIGHTITEM) new APPRIGHTITEM [ dwRightCount ];
 memcpy(sap, lpAppRightItemList, sizeof(APPRIGHTITEM) * dwRightCount);
 scoped_array<APPRIGHTITEM> saTemp ( sap );
 saGroups.swap( saTemp );

FreeList( lpAppRightItemList );
}