message: Fixing a constant expression for VS.
diff: @@ -294,8 +294,8 @@ void PAHcurlMassAssembleDiagonal3D(const int D1D,
  const Vector &_op,
  Vector &_diag)
  {
  - constexpr int MAX_D1D = HCURL_MAX_D1D;
  - constexpr int MAX_Q1D = HCURL_MAX_Q1D;
  + constexpr static int MAX_D1D = HCURL_MAX_D1D;
  + constexpr static int MAX_Q1D = HCURL_MAX_Q1D;
  MFEM_VERIFY(D1D <= MAX_D1D, "Error: D1D > MAX_D1D");
  MFEM_VERIFY(Q1D <= MAX_Q1D, "Error: Q1D > MAX_Q1D");
  