[Argen]

I construct one volScalarField a_ as
a_
(
IOobject
(
"a",
mesh_.time().timeName(),
mesh_,
IOobject::NO_READ,
IOobject::NO_WRITE
),
mesh_,
dimensionedScalar("a", dimless/dimLength, 0.0)
),

and passArry() as
void Foam::XXXX::XXX:assArry(const volScalarField k)
{
a_=k;

forAll(a_.boundaryField(),patchi)
{

forAll(a_.boundaryField()[patchi],facei)
{
a_.boundaryField()[patchi][facei]=k.boundaryField()[patchi][facei];
}
}


}

I test all the values (say k=0.005) passed to a_ and found that max(a_)=0.05 while min(a_)=0.

Any idea about this weired results?