43 lines
1.2 KiB
Plaintext
43 lines
1.2 KiB
Plaintext
@node realpath
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@subsection @code{realpath}
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@findex realpath
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POSIX specification:@* @url{https://pubs.opengroup.org/onlinepubs/9799919799/functions/realpath.html}
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Gnulib module: canonicalize-lgpl
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@mindex canonicalize-lgpl
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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 is missing on some platforms:
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mingw, MSVC 14.
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@item
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This function does not allow for a NULL @samp{resolved} parameter on
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some platforms:
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Mac OS X 10.5, FreeBSD 6.4, OpenBSD 4.4, Solaris 10.
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@item
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This function does not always return an absolute path on some
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platforms:
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Solaris 10.
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@item
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This function fails to detect trailing slashes on non-directories on
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some platforms:
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glibc 2.3.5, macOS 14, OpenBSD 6.0.
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@item
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This function fails to recognize non-directories or symlinks to non-directories
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followed by @samp{..} on some platforms:
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macOS 14, Cygwin 2.9.
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@item
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This function misbehaves on consecutive slashes on some platforms:
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musl libc 1.2.2, AIX 7.
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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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This function does not allow to determine the required size of output buffer;
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the use of a non-NULL @samp{resolved} buffer is non-portable, since
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PATH_MAX, if it is defined, is nothing more than a guess.
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@end itemize
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