doc patch for gengtype's tag

doc patch for gengtype's tag

[Basile Starynkevitch]

Hello All,

The following documentation patch to trunk rev 161983 clarifies the
issue of "gengtype & many GTY tags for same union component?"
http://gcc.gnu.org/ml/gcc/2010-07/msg00118.html &
http://gcc.gnu.org/ml/gcc/2010-07/msg00061.html 

############### patch::: ###############
 
Index: gcc/doc/gty.texi
===================================================================
--- gcc/doc/gty.texi	(revision 161983)
+++ gcc/doc/gty.texi	(working copy)
@@ -183,6 +183,7 @@ The value of the expression given by @code{desc} i
 each @code{tag} value, each of which should be different.  If no
 @code{tag} is matched, the field marked with @code{default} is used if
 there is one, otherwise no field in the union will be marked.
+A union field can have at most one @code{tag}.
 
 In the @code{desc} option, the ``current structure'' is the union that
 it discriminates.  Use @code{%1} to mean the structure containing it.


############## gcc/ChangeLog entry ################
2010-07-09  Basile Starynkevitch  <basile@starynkevitch.net>
	* doc/gty.texi (The inside of a GTY): Improved tag documentation.


############## 

Ok for trunk?

Cheers
-- 
Basile STARYNKEVITCH         http://starynkevitch.net/Basile/
email: basile<at>starynkevitch<dot>net mobile: +33 6 8501 2359
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*** opinions {are only mine, sont seulement les miennes} ***

Re: doc patch for gengtype's tag

[Laurynas Biveinis]

Hi,

2010/7/9 Basile Starynkevitch <basile@starynkevitch.net>:
>  there is one, otherwise no field in the union will be marked.
> +A union field can have at most one @code{tag}.

Join with a previous line.

I cannot approve this patch, but it looks good to me with that change.

-- 
Laurynas