[petsc-users] PETSC address vector c++ access

[RAELI ALICE via petsc-users]

Hi All,
My team is working on a PETSC version of an existent code.
In order to convert the main part of this work retaining the c++ levels of abstraction,

we would access to c++ vector data structures easily.

We would like to use the memory area allocated using c++ as a Petsc Vector

a supposed pseudocode could be:

int data[] = { 1,2,3,4,5,6,7,8,9 };
unsigned int sizeVectorPetsC = data.size();
Vec v(data, sizeVectorPetsC); (Can it exists with easy access petsc routines?)

cout<< "The mapped vector v is: [";

    PetscScalar *vecArray;

PetscGetArray(v, &array);
for (unsigned int i = 0; i < sizeVectorPetsC; i++)
{
Informations of v are the informations of data.(same memory read by both data structures)
}
PetscRestoreArray(v,&array);

cout<< "]"<< endl;

Is it provided this kind of duality between c++ and Petsc objects without a re-copy of the concerned informations?

Thank you,

Alice