FLA_Eig_gest_internal_check.c File Reference

(r)

Functions
FLA_Error	FLA_Eig_gest_internal_check (FLA_Inv inv, FLA_Uplo uplo, FLA_Obj A, FLA_Obj Y, FLA_Obj B, fla_eig_gest_t *cntl)

---

Function Documentation

FLA_Error FLA_Eig_gest_internal_check	(	FLA_Inv	inv,
		FLA_Uplo	uplo,
		FLA_Obj	A,
		FLA_Obj	Y,
		FLA_Obj	B,
		fla_eig_gest_t *	cntl
	)

References FLA_Check_conformal_dims(), FLA_Check_identical_object_elemtype(), FLA_Check_null_pointer(), FLA_Check_object_length_equals(), FLA_Check_object_width_equals(), FLA_Obj_length(), and FLA_Obj_width().

Referenced by FLA_Eig_gest_internal().

{
    FLA_Error e_val;

    // Abort if the control structure is NULL.
    e_val = FLA_Check_null_pointer( ( void* ) cntl );
    FLA_Check_error_code( e_val );

    // Verify that the object element types are identical.
    e_val = FLA_Check_identical_object_elemtype( A, Y );
    FLA_Check_error_code( e_val );

    e_val = FLA_Check_identical_object_elemtype( A, B );
    FLA_Check_error_code( e_val );

    // Verify conformality between all the objects. This check works regardless
    // of whether the element type is FLA_MATRIX or FLA_SCALAR because the
    // element length and width are used instead of scalar length and width.
    e_val = FLA_Check_conformal_dims( FLA_NO_TRANSPOSE, A, B );
    FLA_Check_error_code( e_val );

    if ( FLA_Cntl_variant( cntl ) == FLA_BLOCKED_VARIANT1 ||
         FLA_Cntl_variant( cntl ) == FLA_BLOCKED_VARIANT2 )
    {
        e_val = FLA_Check_object_width_equals( Y, FLA_Obj_width( A ) );
        FLA_Check_error_code( e_val );
    }
    else if ( FLA_Cntl_variant( cntl ) == FLA_BLOCKED_VARIANT4 ||
              FLA_Cntl_variant( cntl ) == FLA_BLOCKED_VARIANT5 )
    {
        e_val = FLA_Check_object_length_equals( Y, FLA_Obj_length( A ) );
        FLA_Check_error_code( e_val );
    }
    else if ( FLA_Cntl_variant( cntl ) == FLA_BLOCKED_VARIANT3 )
    {
        e_val = FLA_Check_conformal_dims( FLA_NO_TRANSPOSE, Y, A );
        FLA_Check_error_code( e_val );
    }

    return FLA_SUCCESS;
}