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200969d8eb
* doc/posix-functions/fgetc.texi (fgetc): * doc/posix-functions/fgets.texi (fgets): * doc/posix-functions/fread.texi (fread): * doc/posix-functions/fscanf.texi (fscanf): * doc/posix-functions/getc.texi (getc): * doc/posix-functions/getchar.texi (getchar): * doc/posix-functions/scanf.texi (scanf): POSIX.1-2001, not POSIX-2001.
34 lines
1.1 KiB
Plaintext
34 lines
1.1 KiB
Plaintext
@node fscanf
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@section @code{fscanf}
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@findex fscanf
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POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/fscanf.html}
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Gnulib module: stdio, nonblocking
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Portability problems fixed by Gnulib module @code{stdio}, together with module @code{nonblocking}:
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@itemize
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@item
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When reading from a non-blocking pipe whose buffer is empty, this function
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fails with @code{errno} being set to @code{EINVAL} instead of @code{EAGAIN} on
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some platforms:
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mingw, 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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@item
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C99 and POSIX.1-2001 and later require end-of-file to be sticky, that
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is, they require this function to act as if it reads end-of-file if
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@code{feof} would return nonzero. However, on some systems this
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function attempts to read from the underlying file descriptor even if
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the stream's end-of-file indicator is set. These systems include
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glibc and default Solaris.
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@item
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On Windows platforms (excluding Cygwin), this function does not set @code{errno}
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upon failure.
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@item
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On Windows, this function doesn't support the @code{hh}, @code{ll}, @code{j},
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@code{t}, @code{z} size specifiers.
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@end itemize
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