Re: [Boost-bugs] [Boost C++ Libraries] #11149: boost::multiprecision compilation fail with std::max

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #11149: boost::multiprecision compilation fail with std::max
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2015-03-30 15:00:34

#11149: boost::multiprecision compilation fail with std::max
-------------------------------+----------------------------
  Reporter:  minorlogic@…      |      Owner:  johnmaddock
      Type:  Bugs              |     Status:  closed
 Milestone:  To Be Determined  |  Component:  multiprecision
   Version:  Boost 1.57.0      |   Severity:  Showstopper
Resolution:  wontfix           |   Keywords:
-------------------------------+----------------------------

Comment (by chtz@…):

 std::max/min are satisfactory, except for the fact that they don't accept
 ETs. Also, if they happen to be called with matching ETs, you have to
 evaluate both expressions (which you have to, anyways -- unless you have
 an extra clever operator< overload), but the result will be evaluated once
 more.

 In Eigen we encapsulated max/min to maxi/mini functions in a separate
 namespace. They are implemented using ADL with an empty macro preventing
 max()/min() macro expansions.
 We require ADL, since we support some scalar types which define max and
 min in their own namespace.

 I guess, you also define functions such as sqrt in your own namespace,
 don't you?

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/11149#comment:4>
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