[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: |
 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
 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

 (suggested patch attached)

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