Re: [Boost-users] [rational] numeric_limits not specialized

Subject: Re: [Boost-users] [rational] numeric_limits not specialized
From: Daryle Walker (darylew_at_[hidden])
Date: 2013-08-20 06:43:25

Ticket 9017 added: <https://svn.boost.org/trac/boost/ticket/9017>.  If you want, you can visit that web page to register yourself to get updates.


I’ll try to get at it (and the other reports) in the near-future, after adding some bug reports of my own, and my current project.


Daryle W.



Sent from Windows Mail



From: Michael Olea
Sent: ‎Monday‎, ‎August‎ ‎19‎, ‎2013 ‎7‎:‎15‎ ‎PM
To: boost-users_at_[hidden]

Hi.



I have some template code that needs slightly different behavior when it is instantiated

with exact types like int or boost::rational rather than when it is instantiated with

floating point types. The compile-time test depends on std::numeric_limits<T>::is_exact.

I was surprised when this came back false for boost::rational until I found that


std::numeric_limits<boost::rational<long>>::is_specialized

is false. Shouldn't boost::rational specialize numeric_limits?





I'm using boost 1.54.0 with clang: Apple LLVM version 4.2 (clang-425.0.28) (based on LLVM 3.2svn)

compiling for C++1.


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