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[util] Add comments about the BOOST_GEOMETRY_CONDITION() implementation.

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Adam Wulkiewicz
2015-02-11 20:29:47 +01:00
parent b3b3687426
commit cff2ee9d6c
1 changed files with 10 additions and 0 deletions
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10
include/boost/geometry/util/condition.hpp
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@@ -15,11 +15,21 @@
#include <boost/config.hpp>
// The macro defined in this file allows to suppress the MSVC
// compiler warning C4127: conditional expression is constant
#ifdef BOOST_MSVC
// NOTE: The code commented out below contains an alternative implementation
// of a macro using a free function. It was left here in case if in the future
// version of MSVC for the code currently used in the macro implementation
// the warning was generated.
//#ifndef DOXYGEN_NO_DETAIL
//namespace boost { namespace geometry { namespace detail {
//BOOST_FORCEINLINE bool condition(bool const b) { return b; }
//}}} // boost::geometry::detail
//#endif // DOXYGEN_NO_DETAIL
//#define BOOST_GEOMETRY_CONDITION(CONDITION) boost::geometry::detail::condition(CONDITION)
#define BOOST_GEOMETRY_CONDITION(CONDITION) ((void)0, (CONDITION))