MPI_Type_copy_attr_function callback function

MPI_Type_copy_attr_function is a placeholder for the application-defined function name.

Syntax

int MPI_Type_copy_attr_function(
           MPI_Datatype olddatatype,
           int          datatype_keyval,
  _In_opt_ void         *extra_state,
  _In_     void         *attribute_val_in,
  _Out_    void         *attribute_val_out,
  _Out_    int          *flag
);

Parameters

• olddatatype
  Old datatype.

• datatype_keyval
  Key value to copy.

• extra_state [in, optional]
  Extra state.

• attribute_val_in [in]
  Input attribute value.

• attribute_val_out [out]
  Output attribute value.

• flag [out]
  Value indicating the success of the copy operation.

Return value

If an attribute copy function returns something other than MPI_SUCCESS, then the call that caused it to be invoked (for example, MPI_Type_create_keyval), is erroneous.

Fortran

    SUBROUTINE TYPE_COPY_ATTR_FUNCTION(OLDTYPE, TYPE_KEYVAL, EXTRA_STATE,
                ATTRIBUTE_VAL_IN, ATTRIBUTE_VAL_OUT, FLAG, IERROR)
        INTEGER OLDTYPE, TYPE_KEYVAL, IERROR
        INTEGER(KIND=MPI_ADDRESS_KIND) EXTRA_STATE,
            ATTRIBUTE_VAL_IN, ATTRIBUTE_VAL_OUT
        LOGICAL FLAG

Requirements

See also

MPI Caching Functions

MPI_Type_create_keyval