Hi Greg,
FYI,
If you want a struct that has no accessible members the following works:
struct tag {
int : 1;
} s;
Just a thought.
TMacD
-----Original Message-----
From: Greg Titus [mailto:[email protected]]
Sent: Monday, May 19, 2014 1:31 PM
To: [email protected]
Cc: [email protected]
Subject: Re: [Chapel-commits] SF.net SVN: chapel:[23411]
trunk/runtime/include/comm/chpl-comm-task-decls. h
Follow-up note: I messed up the original commit message, but have repaired it
after the fact. Now it says:
Make an empty struct nonempty.
In r23405 we added a component of the task private data to hold comm
layer information. This is chpl_comm_taskPrvData_t, a struct typt. For
comm=none we don't need any comm layer info, so we made the struct type
empty. Unfortunately empty struct types aren't legal C (c99 standard,
6.2.5 (20)). The gcc compiler lets this pass, but the PGI and Cray
compilers bark at it. To fix this, add a dummy element to the struct
for the comm=none case. (I tried making it a 0-length array, but the
PGI compiler barked at that, too.)
greg
On Mon, 19 May 2014, [email protected] wrote:
> Revision: 23411
> http://sourceforge.net/p/chapel/code/23411
> Author: gbtitus
> Date: 2014-05-19 17:47:21 +0000 (Mon, 19 May 2014)
> Log Message:
> -----------
> Make an empty struct nonempty.
>
> In r23405 we added a component of the task private data to hold comm
> layer information. For comm=none we don't need any such
>
> Revision Links:
> --------------
> http://sourceforge.net/p/chapel/code/23405
>
> Modified Paths:
> --------------
> trunk/runtime/include/comm/chpl-comm-task-decls.h
>
> This was sent by the SourceForge.net collaborative development platform, the
> world's largest Open Source development site.
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