static std::ptrdiff_t stride2( const Id& id ) {
return id.lower() + id.upper() + 1;
}
// A.k.a. left half-bandwidth
static std::ptrdiff_t bandwidth1( const Id& id ) {
return id.lower();
}
static std::ptrdiff_t stride2( const Id& id ) {
return id.lower() + id.upper() + 1;
}
// A.k.a. left half-bandwidth
static std::ptrdiff_t bandwidth1( const Id& id ) {
return id.lower();
}