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39065e3b61
* doc/posix-functions/isatty.texi: Mention the MSVC problem. * lib/isatty.c: Include <errno.h>, msvc-inval.h. (_isatty_nothrow): New function. (isatty): Use it instead of _isatty. (IsConsoleHandle): Add comment, from Paolo Bonzini. * lib/poll.c (IsConsoleHandle): Likewise. * lib/select.c (IsConsoleHandle): Likewise. * m4/isatty.m4 (gl_FUNC_ISATTY): Fix comment. Reported by Eli Zaretskii. (gl_PREREQ_ISATTY): New macro. * modules/isatty (Depends-on): Add msvc-inval. (configure.ac): Invoke gl_PREREQ_ISATTY.
22 lines
489 B
Plaintext
22 lines
489 B
Plaintext
@node isatty
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@section @code{isatty}
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@findex isatty
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POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/isatty.html}
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Gnulib module: isatty
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Portability problems fixed by Gnulib:
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@itemize
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@item
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On native Windows, this function also returns true for character devices such
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as @file{NUL}.
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@item
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This function crashes when invoked with invalid arguments on some platforms:
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MSVC 9.
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@end itemize
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Portability problems not fixed by Gnulib:
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@itemize
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@end itemize
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