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Хостинг:
isatty - test for a terminal device
#include <unistd.h> int isatty(int fildes);
The isatty() function tests whether fildes, an open file descriptor, is associated with a terminal device.
The isatty() function returns 1 if fildes is associated with a terminal; otherwise it returns 0 and may set errno to indicate the error.
The isatty() function may fail if:
EBADF
ENOTTY
The isatty() function does not necessarily indicate that a human being is available for interaction via fildes. It is quite possible that non-terminal devices are connected to the communications line.
See attributes(5) for descriptions of the following attributes:
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ttyname(3C), attributes(5), standards(5)
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Created 1996-2024 by Maxim Chirkov Добавить, Поддержать, Вебмастеру |