ifort 14 gets mixed up when renaming USEd classes

[Christopher_W_1]

Dear readers,

I stumbled into the following problem when trying to implement a dynamic array type, similar to the approach in FLIBs vector, but using F2008 objects.
When I use two different vectors in one program unit (e.g. one for integer and one for real numbers), the compiler gets mixed up with names an types.
I reduced the problem to the code below:

!
! RDATA: Define Data Types to be stored in the vectors
!
      MODULE RDATA

      TYPE REAL_DATA
      REAL :: VALUE
      END TYPE REAL_DATA

      TYPE INT_DATA
      INTEGER :: VALUE
      END TYPE INT_DATA

      END MODULE RDATA

!----------------------------------------
!
! Module V: Define a VECTOR class for REAL_DATA
!

      MODULE V
        USE RDATA, VECTOR_TYPE => REAL_DATA

!---- (this is the same in V and W and would be INCLUDEd)
        PRIVATE
        PUBLIC :: VECTOR

        TYPE VECTOR
           TYPE(VECTOR_TYPE) :: n
         CONTAINS   !   (TYPE VECTOR)
           PROCEDURE, PUBLIC :: put    => vector_put
        END TYPE VECTOR

      CONTAINS

        SUBROUTINE vector_put(this, ddd)
          CLASS(VECTOR), INTENT(INOUT) :: this
          TYPE(VECTOR_TYPE), INTENT(IN) :: ddd
          this % n = ddd
        END SUBROUTINE vector_put
!----

      END MODULE V

!----------------------------------------
!
! Module W: Define a VECTOR class for INT_DATA
!

      MODULE W
      USE RDATA, VECTOR_TYPE => INT_DATA

!---- (this is the same in V and W and would be INCLUDEd)

        PRIVATE
        PUBLIC :: VECTOR

        TYPE VECTOR
           TYPE(VECTOR_TYPE) :: n
         CONTAINS   !   (TYPE VECTOR)
           PROCEDURE, PUBLIC :: put    => vector_put
        END TYPE VECTOR

      CONTAINS

        SUBROUTINE vector_put(this, ddd)
          CLASS(VECTOR), INTENT(INOUT) :: this
          TYPE(VECTOR_TYPE), INTENT(IN) :: ddd
          this % n = ddd
        END SUBROUTINE vector_put
!----

      END MODULE W

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

      PROGRAM test_vector
      USE RDATA
      USE W, INTVECTOR  => VECTOR  !  Import the Integer Vector of W as INTVECTOR
      USE V, REALVECTOR => VECTOR  !  Import the Real Vector of W as REALVECTOR

      IMPLICIT NONE

      TYPE (REALVECTOR) :: rv
      TYPE (INTVECTOR) :: iv
      call rv%put(REAL_DATA(99.0))  !  ERROR. If I USE V first, this line passes and the error occurs on the next one.
      call iv%put(INT_DATA(99))

      END PROGRAM test_vector

The compilation aborts with the following error

testprog.f90(87): error #6633: The type of the actual argument differs from the type of the dummy argument.
      call rv%put(REAL_DATA(99.0))
------------------^
compilation aborted for testprog.f90 (code 1)

If I comment out all references to the integer "vector" (i.e. USE statement, iv definition and the call to iv % put below), the line compiles as it should.

As a Workaround, I can #define a name for VECTOR, #define the data type for the vector and #include the common code .

Compiler Version: ifort (IFORT) 14.0.1 20131008 on a Linux64 system.

Best regards,

  Christopher

[Steven_L_Intel1]

Thanks, we'll investigate.

[Steven_L_Intel1]

It looks as if the fix for this is already in what is planned for Update 3, scheduled for late April. I verified that the compilation fails in the current version but passes in our internal build.