[Boost-bugs] [Boost C++ Libraries] #6052: unqualified sqrt() fails with SunCC

Subject: [Boost-bugs] [Boost C++ Libraries] #6052: unqualified sqrt() fails with SunCC
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2011-10-24 19:01:42

#6052: unqualified sqrt() fails with SunCC
------------------------------------------------------+---------------------
 Reporter:  Fedor Sergeev <Fedor.Sergeev@…>           |       Owner:  ljsimons
     Type:  Bugs                                      |      Status:  new     
Milestone:  To Be Determined                          |   Component:  polygon 
  Version:  Boost 1.47.0                              |    Severity:  Problem 
 Keywords:                                            |  
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 polygon/gtl_boost_unit_test fails to compile with SunCC

 {{{
 ] sunCC -library=stlport4 -I. libs/polygon/test/gtl_boost_unit_test.cpp
 ...
 "./boost/polygon/rectangle_concept.hpp", line 934: Error: The function
 "sqrt" must have a prototype.
 "libs/polygon/test/gtl_boost_unit_test.cpp", line 794:     Where: While
 instantiating
 "boost::polygon::euclidean_distance<boost::polygon::rectangle_data<int>,
 boost::polygon::rectangle_data<int>>(const boost::
 "libs/polygon/test/gtl_boost_unit_test.cpp", line 794:     Where:
 Instantiated from non-template code.
 ...
 ]
 }}}

 Polygon sources use quite a number of unqualified sqrt() calls.
 However the standard header they include - '''{{{<cmath>}}}''' - is not
 required to inject math functions into the global namespace.
 Thus the only standard way to use these functions (sqrt included) is via
 std:: namespace.

 All the uses of sqrt should be converted to std::sqrt, otherwise compilers
 with strictly conforming STLs (like SunCC -stlport4) will not be able to
 compile.

 (suggested patch attached)

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/6052>
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