[Boost-bugs] [Boost C++ Libraries] #11623: Clang rejects some simple BOOST_TEST() statements

Subject: [Boost-bugs] [Boost C++ Libraries] #11623: Clang rejects some simple BOOST_TEST() statements
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2015-09-07 10:07:42

#11623: Clang rejects some simple BOOST_TEST() statements
---------------------------------------------------+---------------------
 Reporter:  Tony Lewis <tonyelewis@…>              |      Owner:  rogeeff
     Type:  Bugs                                   |     Status:  new
Milestone:  To Be Determined                       |  Component:  test
  Version:  Boost 1.59.0                           |   Severity:  Problem
 Keywords:  BOOST_TEST,double,float,clang,mutable  |
---------------------------------------------------+---------------------
 Thanks again for the new BOOST_TEST() tool, which looks very useful.

 Unfortunately, I'm unable to compile the following under `clang++` (with
 or without `-std=c++11`) :

 {{{#!cpp
 #define BOOST_TEST_MODULE comp_doub_mod

 #include <boost/test/included/unit_test.hpp>

 BOOST_AUTO_TEST_CASE( comp_doubs ) {
         const double num { 1.0 };
         BOOST_TEST( num == 1.0 );
         // BOOST_TEST( 1.0 == num );
 }
 }}}

 This also fails if I swap to the commented-out BOOST_TEST() line.

 The core of the error message is:

 {{{
 [...]/boost/test/tools/floating_point_comparison.hpp:259:25: error:
 'mutable' cannot be applied to references
     mutable FPT         m_tested_rel_diff;
                         ^
 }}}

 I'll attach the full compiler error output.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/11623>
Boost C++ Libraries <http://www.boost.org/>
Boost provides free peer-reviewed portable C++ source libraries.