Re: strcasestr [was: strstr speedup]

[Bruno Haible]

Eric Blake wrote:
> Here's what I'm committing for strcasestr, including a strcasestr-simple
> module, and the first attempt at a glibc function extensions chapter.

Thanks for this! I've now extended the glibc function extensions chapter.

> --- /dev/null
> +++ b/doc/functions/strcasestr.texi
> @@ -0,0 +1,29 @@
> address@hidden strcasestr
> address@hidden @code{strcasestr}
> address@hidden strcasestr
> +
> +Unspecified by POSIX, but comparable to a mix of @code{strstr} and
> address@hidden
> +
> +Gnulib module: strcasestr or strcasestr-simple
> +
> +Portability problems fixed by either Gnulib module @code{strcasestr-simple}
> +or @code{strcasestr}:
> address@hidden
> address@hidden
> +This function is missing on some platforms:
> +MacOS X 10.3, FreeBSD 5.2.1, OpenBSD 4.0, AIX 4.3.2, HP-UX 11, IRIX
> +6.5, OSF/1 5.1, Solaris 10, Cygwin 1.5.x, mingw, Interix 3.5, BeOS.
> address@hidden itemize

The list of platforms is not right. I have corrected it while moving the
doc. You can get this portability info from the database that I have
uploaded to http://www.haible.de/bruno/various-symlists.tar.gz

  $ ./show-portability strcasestr
  libc                freebsd-5.2.1
  libc                freebsd-6.0
  libc                glibc-2.3.6
  libc                interix-3.5
  libc                macosx-10.3
  libc                netbsd-3.0
  libc                openbsd-3.8
  libc                pips
  MISSING in          aix-4.3.2 aix-5.1.0 beos cygwin hpux-11.00 hpux-11.11 
irix-6.5 mingw nsk-G06 osf1-4.0d osf1-5.1a solaris-2.10 solaris-2.4 
solaris-2.5.1 solaris-2.6 solaris-2.7 solaris-2.8 solaris-2.9

  $ ./show-portability --doc strcasestr
  AIX 5.1, HP-UX 11, IRIX 6.5, OSF/1 5.1, Solaris 10, Cygwin, mingw, BeOS.

> | We can also introduce a strstr-simple module that does nothing, just for
> | orthogonality? (It does nothing because all platforms have some strstr
> | function.)
> 
> I'm hesitant here.  strstr-simple would truly be a no-op - there is
> nothing that it provides other than an orthoganally-named module

OK, let's drop this idea.

Bruno


2008-01-19  Bruno Haible  <address@hidden>

        * doc/glibc-functions/strcasestr.texi: Include contents of
        doc/functions/strcasestr.texi, fixing the list of platforms.
        * doc/functions/strcasestr.texi: Remove file.

http://git.sv.gnu.org/gitweb/?p=gnulib.git;a=commitdiff;h=398c3b9ba95888804ed35f380bcaead0a493baa7

2008-01-19  Bruno Haible  <address@hidden>

        * doc/glibc-functions/memmem.texi: Include contents of
        doc/functions/memmem.texi.
        * doc/functions/memmem.texi: Remove file.

http://git.sv.gnu.org/gitweb/?p=gnulib.git;a=commitdiff;h=e606e4f86f58f108829f84777e565eebd0a467e7