isatty(3f) — CX/UX 6.20



ttynam(3F)                                             ttynam(3F)



NAME
     ttynam, isatty - find name of a terminal port

SYNOPSIS
     character*(*) function ttynam (lunit)

     logical function isatty (lunit)

DESCRIPTION
     ttynam returns a blank padded path name of the terminal dev-
     ice associated with logical unit lunit.

     isatty returns .TRUE.  if lunit is associated with a termi-
     nal device, .FALSE.  otherwise.

FILES
     /dev/*
     /usr/lib/libU77.a

DIAGNOSTICS
     ttynam returns an empty string (all blanks) if lunit is not
     associated with a terminal device in directory "/dev".

NOTES
     When compiling source with the -Qocs option, an explicit
     underscore needs to be added to the end of isatty.

     When compiling source with the -Qocs option, the function
     ttynam is not accessible because the 88Open OCS standard
     specifies that CHARACTER values be returned differently.

























Page 1                        CX/UX Hf77 Fortran Reference Manual
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