removed symbols in strings.h

removed symbols in strings.h

[Jens Gustedt]

[-- Attachment #1: Type: text/plain, Size: 783 bytes --]

Hello,
the functions

int bcmp (const void *, const void *, size_t);
void bcopy (const void *, void *, size_t);
void bzero (void *, size_t);
char *index (const char *, int);
char *rindex (const char *, int);

in strings.h are removed from the current version of the POSIX
standard. Shouldn't that mean they should be put between guards
(something with POSIX version and / or __GNU_SOURCE) and the symbols
made weak in the library?

Jens

-- 
:: INRIA Nancy Grand Est :: http://www.loria.fr/~gustedt/   ::
:: AlGorille ::::::::::::::: office Nancy : +33 383593090   ::
:: ICube :::::::::::::: office Strasbourg : +33 368854536   ::
:: ::::::::::::::::::::::::::: gsm France : +33 651400183   ::
:: :::::::::::::::::::: gsm international : +49 15737185122 ::



[-- Attachment #2: This is a digitally signed message part --]
[-- Type: application/pgp-signature, Size: 198 bytes --]

Re: removed symbols in strings.h

[nwmcsween]

#if posix ....
 deprecated warning etc
#endif

On Feb 11, 2013, at 12:25 PM, Jens Gustedt <jens.gustedt@inria.fr> wrote:

> Hello,
> the functions
> 
> int bcmp (const void *, const void *, size_t);
> void bcopy (const void *, void *, size_t);
> void bzero (void *, size_t);
> char *index (const char *, int);
> char *rindex (const char *, int);
> 
> in strings.h are removed from the current version of the POSIX
> standard. Shouldn't that mean they should be put between guards
> (something with POSIX version and / or __GNU_SOURCE) and the symbols
> made weak in the library?
> 
> Jens
> 
> -- 
> :: INRIA Nancy Grand Est :: http://www.loria.fr/~gustedt/   ::
> :: AlGorille ::::::::::::::: office Nancy : +33 383593090   ::
> :: ICube :::::::::::::: office Strasbourg : +33 368854536   ::
> :: ::::::::::::::::::::::::::: gsm France : +33 651400183   ::
> :: :::::::::::::::::::: gsm international : +49 15737185122 ::
> 
> 

Re: removed symbols in strings.h

[Rich Felker]

On Mon, Feb 11, 2013 at 01:14:30PM -0800, nwmcsween@gmail.com wrote:
> #if posix ....
>  deprecated warning etc
> #endif

No, if it's removed from POSIX, then they can't be declared, since the
namespace belongs to the application. For instance, index() could be
an application-defined macro that does something completely different.
I doubt apps will do that for a while until POSIX 2008 is mainstream,
but that's what the text of the standard means.

What should be done, I think, is just exposing these functions under
the same rules gethostbyname is exposed under.

Rich

Re: removed symbols in strings.h

[Rich Felker]

On Mon, Feb 11, 2013 at 09:25:47PM +0100, Jens Gustedt wrote:
> Hello,
> the functions
> 
> int bcmp (const void *, const void *, size_t);
> void bcopy (const void *, void *, size_t);
> void bzero (void *, size_t);
> char *index (const char *, int);
> char *rindex (const char *, int);
> 
> in strings.h are removed from the current version of the POSIX
> standard. Shouldn't that mean they should be put between guards
> (something with POSIX version and / or __GNU_SOURCE)

Fixed.

> and the symbols
> made weak in the library?

They're not referenced by anything else in the library and they're in
their own translation units, so whether they're weak makes no
difference.

Rich