CromwellEnage 53fa67da1c Define BOOST_PARAMETER_EXPONENTIAL_OVERLOAD_THRESHOLD_ARITY as 0 by default ...

User library tests have been reporting numerous failures due to internal compiler errors that occur when perfect forwarding is unsupported.  Setting BOOST_PARAMETER_EXPONENTIAL_OVERLOAD_THRESHOLD_ARITY to zero eliminates these failures.  By doing this in Boost.Parameter, we relieve user code of the burden of doing this in their end.  The trade-off is that our own tests need to define BOOST_PARAMETER_EXPONENTIAL_OVERLOAD_THRESHOLD_ARITY explicitly in order to take advantage of the benefits of not having to wrap boost::ref() or std::ref() around non-const lvalues.  As this was always a C++03 workaround, the change should be worth the trade-off.

On an unrelated note, Travis Cl just deprecated "sudo: false".  See <https://blog.travis-ci.com/2018-10-04-combining-linux-infrastructures>.

2018-11-20 08:51:32 -05:00

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