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<p><font size="2" face="sans-serif">I've got to raise a concern here. If we start defining MPI datatypes to be C++ types then how will an implementation support that with only a C compiler? I thought the point of 281 was to eradicate C++ from the standard (and start over later if C++ was to be defined in the standard). </font><br>
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<font size="2" face="sans-serif">_______________________________________________<br>
Douglas Miller BlueGene Messaging Development<br>
IBM Corp., Rochester, MN USA Bldg 030-2 A401<br>
dougmill@us.ibm.com Douglas Miller/Rochester/IBM</font><br>
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<img width="16" height="16" src="cid:1__=09BBF0BADFC8E6D88f9e8a93df938@us.ibm.com" border="0" alt="Inactive hide details for Jed Brown ---06/26/2012 11:26:16 AM---Jed Brown <jedbrown@mcs.anl.gov>"><font size="2" color="#424282" face="sans-serif">Jed Brown ---06/26/2012 11:26:16 AM---Jed Brown <jedbrown@mcs.anl.gov></font><br>
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<ul style="padding-left: 72pt"><font size="1" face="sans-serif"><b>Jed Brown <jedbrown@mcs.anl.gov></b></font><font size="1" face="sans-serif"> </font><br>
<font size="1" face="sans-serif">Sent by: mpi-forum-bounces@lists.mpi-forum.org</font>
<p><font size="1" face="sans-serif">06/26/2012 11:14 AM</font>
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Main MPI Forum mailing list <mpi-forum@lists.mpi-forum.org></font></div></td></tr>
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<ul style="padding-left: 7pt"><font size="1" face="sans-serif">Main MPI Forum mailing list <mpi-forum@lists.mpi-forum.org>, </font></ul>
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<ul style="padding-left: 7pt"><font size="1" face="sans-serif">Re: [Mpi-forum] C++ types inaccessible after #281</font></ul>
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<font size="3" face="serif">On Tue, Jun 26, 2012 at 6:13 AM, Jeff Squyres <</font><a href="mailto:jsquyres@cisco.com" target="_blank"><font size="3" color="#0000FF" face="serif"><u>jsquyres@cisco.com</u></font></a><font size="3" face="serif">> wrote:</font>
<ul style="padding-left: 9pt"><font size="3" face="serif">There are a few C++-specific datatypes for which it would be worth introducing new C datatypes (e.g., MPI_CXX_COMPLEX). It's too bad that no one realized this until now, because this won't make the MPI-3 deadline. But it could be part of MPI-3.1 or errata, or some such.</font></ul>
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<font size="3" face="serif">Two people in offline discussions have suggested that C bindings to the std::complex types (I'm not aware of anything else that #281 will lose) might qualify as ticket 0.</font><tt><font size="2">_______________________________________________<br>
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