ISATTY — Whether a unit is a terminal device.

Description

Determine whether a unit is connected to a terminal device.

Syntax

RESULT = ISATTY(UNIT)

Arguments

UNIT Shall be a scalar INTEGER.

Return value

Returns .TRUE. if the UNIT is connected to a terminal device, .FALSE. otherwise.

Example


PROGRAM test_isatty
  INTEGER(kind=1) :: unit
  DO unit = 1, 10
    write(*,*) isatty(unit=unit)
  END DO
END PROGRAM

Standard

GNU extension

Class

Function

See also

TTYNAM