[Bug gas/11829] consecutive ampersands collapsed during macro expansion (&& changed to &)

[konrad dot schwarz at siemens dot com]

------- Additional Comments From konrad dot schwarz at siemens dot com  
2010-07-22 11:05 -------
(In reply to comment #4)
> You need to double & for every level of expansion. .irp introduces another 
> such
> level.

I tried using 8 ampersands (&&&&&&&&).  The code now works.  It also works with
7, 6, and 5 ampersands.  It does not work with 4, 3, or 2 ampersands, nor with 9
ampersands.

I find this pretty erratic behavior, especially since I wasn't even using
alternate macro mode at the relevant point, but if you feel this is not a bug,
then so be it.

However, I would like doubling ampersands to be documented, e.g.,
"To get an ampersand in the expansion of the macro, double it." in 
(as.info)Macro.

I don't understand the interaction between .irp and & properly, so I can't give
a suggestion on how to document it.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|INVALID                     |


http://sourceware.org/bugzilla/show_bug.cgi?id=11829

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