18.2.388. MPI_Type_delete_attr
MPI_Type_delete_attr - Deletes a datatype-caching attribute value associated with a key.
18.2.388.1. SYNTAX
18.2.388.1.1. C Syntax
#include <mpi.h>
int MPI_Type_delete_attr(MPI_Datatype type, int type_keyval)
18.2.388.1.2. Fortran Syntax
USE MPI
! or the older form: INCLUDE 'mpif.h'
MPI_TYPE_DELETE_ATTR(TYPE, TYPE_KEYVAL, IERROR)
INTEGER TYPE, TYPE_KEYVAL, IERROR
18.2.388.1.3. Fortran 2008 Syntax
USE mpi_f08
MPI_Type_delete_attr(datatype, type_keyval, ierror)
TYPE(MPI_Datatype), INTENT(IN) :: datatype
INTEGER, INTENT(IN) :: type_keyval
INTEGER, OPTIONAL, INTENT(OUT) :: ierror
18.2.388.2. INPUT/OUTPUT PARAMETER
type
: Data type from which the attribute is deleted (handle).n
18.2.388.3. INPUT PARAMETER
type_keyval
: Key value (integer).
18.2.388.4. OUTPUT PARAMETER
IERROR
: Fortran only: Error status (integer).
18.2.388.5. DESCRIPTION
MPI_Type_delete_attr deletes a datatype-caching attribute value associated with a key. This routines partially replaces MPI_Attr_delete, which is now deprecated.
18.2.388.6. NOTES
Note that it is not defined by the MPI standard what happens if the delete_fn callback invokes other MPI functions. In Open MPI, it is not valid for delete_fn callbacks (or any of their children) to add or delete attributes on the same object on which the delete_fn callback is being invoked.
18.2.388.7. ERRORS
Almost all MPI routines return an error value; C routines as the value of the function and Fortran routines in the last argument.
Before the error value is returned, the current MPI error handler is called. By default, this error handler aborts the MPI job, except for I/O function errors. The error handler may be changed with MPI_Comm_set_errhandler; the predefined error handler MPI_ERRORS_RETURN may be used to cause error values to be returned. Note that MPI does not guarantee that an MPI program can continue past an error.