[PATCH] stpcpy comes from Turbo C [BZ #3629]

[Gabriel F. T. Gomes]

On Tue, 10 May 2016 09:50:14 +0200
fweimer@redhat.com (Florian Weimer) wrote:

> The earlierst reference I could find is in a German book on Borland's
> Turbo C programming environment (Ekkehard Kaier, Edwin Rudolfs,
> »Turbo C Grundkurs«, first published in 1988).  It is not generally
> available on current Microsoft platforms, and there are online
> references that claim that it was not part of earlier Microsoft C
> environments.  This suggests that the previous speculative attribution
> to MS-DOS (sic) was incorrect.
> 
> 2016-05-10  Florian Weimer  <fweimer@redhat.com>
> 
> 	[BZ #3629]
> 	* manual/string.texi (Copying Strings and Arrays): Document
> 	provenience of the stpcpy function.
> 
> diff --git a/manual/string.texi b/manual/string.texi
> index 016fd0b..f22d2ac 100644
> --- a/manual/string.texi
> +++ b/manual/string.texi
> @@ -612,9 +612,8 @@ and @samp{bar} to produce @samp{foobar}, which it then prints.
>  @include stpcpy.c.texi
>  @end smallexample
> 
> -This function is not part of the ISO or POSIX standards, and is not
> -customary on Unix systems, but we did not invent it either.  Perhaps it
> -comes from MS-DOG.
> +This function is a Turbo C extension.  It is not part of the ISO or
> +POSIX standards.

According to the manpage for stpcpy, it has been added to POSIX.1-2008.

It shows up in section 13 (Headers) under 'string.h':
http://pubs.opengroup.org/onlinepubs/9699919799/nframe.html

Perhaps a small change your last sentence?

Other than that, lgtm.

> 
>  Its behavior is undefined if the strings overlap.  The function is
>  declared in @file{string.h}.
>