Simplify code slightly.

diff --git a/include/deal.II/lac/solver_gmres.h b/include/deal.II/lac/solver_gmres.h
index a5cc5e8860b7b055b43e5bce6afa69b85cae94c7..939be5052261078530408fe888c21fc32acebe02 100644 (file)
--- a/include/deal.II/lac/solver_gmres.h
+++ b/include/deal.II/lac/solver_gmres.h
@@ -734,7 +734,7 @@ namespace internal
     template <typename VectorType>
     struct is_dealii_compatible_distributed_vector<
       VectorType,
-      typename std::enable_if<!internal::is_block_vector<VectorType>>::type>
+      std::enable_if_t<!internal::is_block_vector<VectorType>>>
     {
       static constexpr bool value = std::is_same_v<
         VectorType,
@@ -747,7 +747,7 @@ namespace internal
     template <typename VectorType>
     struct is_dealii_compatible_distributed_vector<
       VectorType,
-      typename std::enable_if<internal::is_block_vector<VectorType>>::type>
+      std::enable_if_t<internal::is_block_vector<VectorType>>>
     {
       static constexpr bool value = std::is_same_v<
         typename VectorType::BlockType,