<html>#2407: Cactus math work-arounds break CarpetX reduction operators
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<tr><td style='text-align:right'> Reporter:</td><td>Erik Schnetter</td></tr>
<tr><td style='text-align:right'> Status:</td><td>new</td></tr>
<tr><td style='text-align:right'>Milestone:</td><td></td></tr>
<tr><td style='text-align:right'> Version:</td><td></td></tr>
<tr><td style='text-align:right'> Type:</td><td>bug</td></tr>
<tr><td style='text-align:right'> Priority:</td><td>major</td></tr>
<tr><td style='text-align:right'>Component:</td><td></td></tr>
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<p>Years ago we introduced work-arounds for C++ compilers that didn’t properly support the std:: namespace (probably PGI, IBM, Cray). It turns out these work-arounds violate the C++ standard since the re-define global identifiers such as “isnan”. I found out today that they actually break the reduction operators in CarpetX when “-O2” is used (“-O0” is fine).</p>
<p>These versions of these compilers are not relevant any more, and these work-arounds can now be removed. This they cause problems and since they violate the C++ standard, I suggest that we do so.</p>
<p>--<br/>
Ticket URL: <a href='https://bitbucket.org/einsteintoolkit/tickets/issues/2407/cactus-math-work-arounds-break-carpetx'>https://bitbucket.org/einsteintoolkit/tickets/issues/2407/cactus-math-work-arounds-break-carpetx</a></p>
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