.TH MPI_Info_get_nthkey 3 "2/9/2000" " " "MPI-2".SH NAMEMPI_Info_get_nthkey \-  Returns the nth defined key in info .SH SYNOPSIS.nfint MPI_Info_get_nthkey(MPI_Info info, int n, char *key).fi.SH INPUT PARAMETERS.PD 0.TP.B info - info object (handle).PD 1.PD 0.TP.B n - key number (integer).PD 1.SH OUTPUT PARAMETERS.PD 0.TP.B keys - key (string).PD 1.SH NOTES FOR FORTRANAll MPI routines in Fortran (except for .I MPI_WTIMEand .I MPI_WTICK) havean additional argument .I ierrat the end of the argument list.  .I ierris an integer and has the same meaning as the return value of the routinein C.  In Fortran, MPI routines are subroutines, and are invoked with the.I callstatement.All MPI objects (e.g., .I MPI_Datatype, .I MPI_Comm) are of type .I INTEGERin Fortran..SH LOCATIONinfo_getnth.c