HP 3000 Manuals

HP C/iX Library Reference Manual

isatty 

Checks whether a file descriptor is associated with a display device,
such as a terminal.

Syntax 

     int isatty (int fildes)

Parameters 

fildes        An open file descriptor.

Return Values 

1             The file descriptor is a terminal device.

0             The file descriptor is not a terminal device.

Description 

The isatty function returns true or false depending on whether or not
fildes is associated with a terminal.
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NOTE  If linking with the POSIX/iX library, refer to the description of
      isatty() located in the MPE/iX Developer's Kit Reference Manual.

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See Also 

dup(), open()

MPE/iX 5.0 Documentation