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.TH "MPI_OP_FROMINT" "3" "Oct 13, 2026" "" "Open MPI"
.SH NAME
MPI_Op_fromint \- UNKNOWN
.sp
MPI_Comm_fromint \%<#\:mpi-comm-fromint>, MPI_Comm_toint \%<#\:mpi-comm-toint>,
MPI_Errhandler_fromint \%<#\:mpi-errhandler-fromint>, MPI_Errhandler_toint \%<#\:mpi-errhandler-toint>,
MPI_File_fromint \%<#\:mpi-file-fromint>, MPI_File_toint \%<#\:mpi-file-toint>,
MPI_Group_fromint \%<#\:mpi-group-fromint>, MPI_Group_toint \%<#\:mpi-group-toint>,
MPI_Info_fromint \%<#\:mpi-info-fromint>, MPI_Info_toint \%<#\:mpi-info-toint>,
MPI_Message_fromint \%<#\:mpi-message-fromint>, MPI_Message_toint \%<#\:mpi-message-toint>,
MPI_Op_fromint, MPI_Op_toint \%<#\:mpi-op-toint>,
MPI_Request_fromint \%<#\:mpi-request-fromint>, MPI_Request_toint \%<#\:mpi-request-toint>,
MPI_Session_fromint \%<#\:mpi-session-fromint>, MPI_Session_toint \%<#\:mpi-session-toint>,
MPI_Type_fromint \%<#\:mpi-type-fromint>, MPI_Type_toint \%<#\:mpi-type-toint>,
MPI_Win_fromint \%<#\:mpi-win-fromint>, MPI_Win_toint \%<#\:mpi-win-toint> — Translates a C integer to the appropriate C handle, or vice versa.
.SH SYNTAX
.SS C Syntax
.INDENT 0.0
.INDENT 3.5
.sp
.EX
MPI_Comm MPI_Comm_fromint(int comm)

int MPI_Comm_toint(MPI_Comm comm)

MPI_Errhandler MPI_Errhandler_fromint(int errhandler)

int MPI_Errhandler_toint(MPI_Errhandler errhandler)

MPI_File MPI_File_fromint(int file)

int MPI_File_toint(MPI_File file)

MPI_Group MPI_Group_fromint(int group)

int MPI_Group_toint(MPI_Group group)

MPI_Info MPI_Info_fromint(int info)

int MPI_Info_toint(MPI_Info info)

MPI_Message MPI_Message_fromint(int message)

int MPI_Message_toint(MPI_Message message)

MPI_Op MPI_Op_fromint(int op)

int MPI_Op_toint(MPI_Op op)

MPI_Request MPI_Request_fromint(int request)

int MPI_Request_toint(MPI_Request request)

MPI_Session MPI_Session_fromint(int session)

int MPI_Session_toint(MPI_Session session)

MPI_Datatype MPI_Type_fromint(int datatype)

int MPI_Type_toint(MPI_Datatype datatype)

MPI_Win MPI_Win_fromint(int win)

int MPI_Win_toint(MPI_Win win)
.EE
.UNINDENT
.UNINDENT
.SH DESCRIPTION
.sp
The \fIfromint\fP function translates a C integer to the appropriate C handle.
Only an integer obtained from a previous call to MPI_Comm_toint \%<#\:mpi-comm-toint>, etc.
may be passed to this function.  It is erroneous to pass to this function an integer associated
with a handle that has been freed, disconnected, or aborted (or that was derived from a session that has been finalized).
.SH NOTES
.sp
These functions are only available in C; they are not available in any
of the Fortran MPI interfaces.
.sp
These functions do not return an error value.
.SH Author
The Open MPI community
.SH Copyright
2003-2026, The Open MPI Community
.\" End of generated man page.