Finite Element Assembly Using an Embedded Domain Specific Language

Listing 10

Extension of fem_grammar to add user-defined operations.

()  proto::when

()  <

()   proto::function< proto::terminal< user_op<proto::_> >, proto::vararg<proto::_> >,

()   evaluate_user_op(proto::function< proto::_, proto::vararg<fem_grammar> >)

()  >