#1489 Added an assert for the in place DoReuseMatrix policy of the MatTranspose PETSc wrapper.

Sources/Test/ThirdParty/PETSc/MatrixOperations/Model.cpp

@@ -201,11 +201,11 @@ namespace MoReFEM::TestNS::PetscNS::MatrixOperationsNS
                                                Wrappers::Petsc::DoReuseMatrix::no);
                 
                 Wrappers::Petsc::MatMatMatMult(matrix_init_1,
-                                                     matrix_init_2,
-                                                     matrix_init_3,
-                                                     matrix_10,
-                                                     __FILE__, __LINE__,
-                                                     Wrappers::Petsc::DoReuseMatrix::yes);
+                                               matrix_init_2,
+                                               matrix_init_3,
+                                               matrix_10,
+                                               __FILE__, __LINE__,
+                                               Wrappers::Petsc::DoReuseMatrix::yes);
             }
             {
                 IS rperm;

Sources/ThirdParty/Wrappers/Petsc/Matrix/MatrixOperations.hxx

@@ -275,6 +275,9 @@ namespace MoReFEM
                     case DoReuseMatrix::in_place:
                     {
                         result = matrix1.Internal();
+                        assert(matrix1.Internal() == matrix2.Internal() && "For in place transpose both arguments"
+                                                                           "are expected to be pointers to the"
+                                                                           "same PETSc matrix object.");
                         error_code = ::MatTranspose(matrix1.Internal(), MAT_INPLACE_MATRIX, &result);
                         break;
                     }