@node strstr
@section @code{strstr}
@findex strstr

POSIX specification: @url{http://www.opengroup.org/susv3xsh/strstr.html}

Gnulib module: strstr

Portability problems fixed by Gnulib:
@itemize
@item
This function has quadratic instead of linear worst-case complexity on some
platforms:
glibc 2.8, MacOS X 10.3, FreeBSD 6.2, NetBSD 3.0, OpenBSD 4.0, AIX 5.1, HP-UX 11, IRIX 6.5, OSF/1 5.1, Solaris 10, Cygwin 1.5.x, mingw.
@end itemize

Portability problems not fixed by Gnulib:
@itemize
@item
This function cannot work correctly on character strings in most multibyte
locales.  Gnulib provides an alternative function @code{mbsstr} that works
on character strings in all locales.
@end itemize