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37 lines
1.2 KiB
Plaintext
37 lines
1.2 KiB
Plaintext
@node fopen
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@section @code{fopen}
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@findex fopen
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POSIX specification: @url{http://www.opengroup.org/onlinepubs/9699919799/functions/fopen.html}
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Gnulib module: fopen
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Portability problems fixed by Gnulib:
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@itemize
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@item
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This function does not fail when the file name argument ends in a slash
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and (without the slash) names a nonexistent file or a file that is not a
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directory, on some platforms:
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HP-UX 11.00, Solaris 9, Irix 5.3.
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@item
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On Windows platforms (excluding Cygwin), this function does usually not
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recognize the @file{/dev/null} filename.
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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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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 returns a file stream in ``text'' mode by default;
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this means that it translates @code{'\n'} to CR/LF by default. Use the
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@code{"b"} flag if you need reliable binary I/O.
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@item
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On Windows platforms (excluding Cygwin), this function fails to open
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directories for reading. Such streams have implementation-defined
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semantics on other platforms. To avoid directory streams with a
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consistent error message, use @code{fstat} after @code{open} and
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@code{fdopen}, rather than @code{fopen} and @code{fileno}.
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@end itemize
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