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@node memmem
@subsection @code{memmem}
@findex memmem
Gnulib module: memmem or memmem-simple
Portability problems fixed by either Gnulib module @code{memmem-simple}
or @code{memmem}:
@itemize
@item
This function is missing on some platforms:
MacOS X 10.5, FreeBSD 5.2.1, OpenBSD 4.0, AIX 4.3.2, HP-UX 11, IRIX 6.5, OSF/1 5.1, Solaris 10, mingw, Interix 3.5, BeOS.
@item
This function has reversed arguments on some older platforms:
Linux libc 5.0.9
@item
This function can trigger false positives for long periodic needles on
some platforms:
glibc 2.12, Cygwin 1.7.7.
@end itemize
Portability problems fixed by Gnulib module @code{memmem}:
@itemize
@item
This function returns incorrect values in some cases, such as when
given an empty needle:
glibc <= 2.0, Cygwin 1.5.x.
@item
This function has quadratic instead of linear worst-case complexity on some
platforms:
glibc 2.8, FreeBSD 6.2, NetBSD 3.0, AIX 5.1, Cygwin 1.5.x.
@end itemize
Portability problems not fixed by Gnulib:
@itemize
@end itemize
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