# An MPI tag, can be defined using `Int::tag`
extern class Tag `{ int `}
# Special tag accepting any tag
new any `{ return MPI_ANY_TAG; `}
# This tag as an `Int`
fun to_i: Int `{ return self; `}
redef fun to_s do return to_i.to_s
end
lib/mpi/mpi.nit:368,1--376,3