diff --git a/dune/solvers/iterationsteps/blockgssteps.hh b/dune/solvers/iterationsteps/blockgssteps.hh index 00b7e8eede4397e4efddd25fb9d555b79214bae7..7c7cec4084f725182f290ad0ea50fe3cf21fbdc9 100644 --- a/dune/solvers/iterationsteps/blockgssteps.hh +++ b/dune/solvers/iterationsteps/blockgssteps.hh @@ -1,6 +1,7 @@ #ifndef DUNE_SOLVERS_ITERATIONSTEPS_BLOCKGSSTEPS_HH #define DUNE_SOLVERS_ITERATIONSTEPS_BLOCKGSSTEPS_HH +#include <cassert> #include <functional> #include <dune/common/parametertree.hh>