ISATTY

Section: MINTLIB LIBRARY FUNCTIONS (3)
Updated: 3 March 1993
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NAME

isatty - is this file desciptor a terminal device

SYNOPSIS

#include <unistd.h>

int isatty(int fildes);

DESCRIPTION

isatty returns 1 if file descriptor fildes is associated with a terminal device, 0 otherwise.

NOTE

The current implementation makes use of the Fseek system call, which may explain the appearance of the Fseek call in system debug messages whenever a program tries to determine whether it is writing to a file or to a tty.