svn commit: r246766 - in head: include lib/libc/string

[Konstantin Belousov]

On Wed, Feb 13, 2013 at 03:46:33PM +0000, Niclas Zeising wrote:
> Author: zeising (doc,ports committer)
> Date: Wed Feb 13 15:46:33 2013
> New Revision: 246766
> URL: http://svnweb.freebsd.org/changeset/base/246766
> 
> Log:
>   Add strchrnul(), a GNU function similar to strchr(), except that it returns
>   a pointer to the end of the string, rather than NULL, if the character was
>   not found.
>   
>   Approved by:	theraven
> 
> Added:
>   head/lib/libc/string/strchrnul.c   (contents, props changed)
> Modified:
>   head/include/string.h
>   head/lib/libc/string/Makefile.inc
>   head/lib/libc/string/Symbol.map
>   head/lib/libc/string/strchr.3
> 
> Modified: head/include/string.h
> ==============================================================================
> --- head/include/string.h	Wed Feb 13 15:43:15 2013	(r246765)
> +++ head/include/string.h	Wed Feb 13 15:46:33 2013	(r246766)
> @@ -74,6 +74,9 @@ char	*strcasestr(const char *, const cha
>  #endif
>  char	*strcat(char * __restrict, const char * __restrict);
>  char	*strchr(const char *, int) __pure;
> +#if defined(_GNU_SOURCE)
> +char	*strchrnul(const char*, int) __pure;
> +#endif
The GNU_SOURCE namespace is not present on the FreeBSD.  We use
#if __BSD_VISIBLE
namespace delineation for the extensions not covered by any standard
namespaces supported by the FreeBSD headers.

The only place in the system where system-native headers do check for
_GNU_SOURCE, the code also checks for _BSD_SOURCE.
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