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Antony Polukhin
2013-12-30 18:03:42 +04:00
parent bf75439403 edde5f442e
commit 2f2c1a3443
1 changed files with 2 additions and 15 deletions
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17
include/boost/cast.hpp
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@ -50,17 +50,6 @@
# include <boost/limits.hpp>
# include <boost/detail/select_type.hpp>
// It has been demonstrated numerous times that MSVC 6.0 fails silently at link
// time if you use a template function which has template parameters that don't
// appear in the function's argument list.
//
// TODO: Add this to config.hpp?
# if defined(BOOST_MSVC) && BOOST_MSVC < 1300
# define BOOST_EXPLICIT_DEFAULT_TARGET , ::boost::type<Target>* = 0
# else
# define BOOST_EXPLICIT_DEFAULT_TARGET
# endif
namespace boost
{
// See the documentation for descriptions of how to choose between
@ -73,7 +62,7 @@ namespace boost
// section 15.8 exercise 1, page 425.
template <class Target, class Source>
inline Target polymorphic_cast(Source* x BOOST_EXPLICIT_DEFAULT_TARGET)
inline Target polymorphic_cast(Source* x)
{
Target tmp = dynamic_cast<Target>(x);
if ( tmp == 0 ) throw std::bad_cast();
@ -92,14 +81,12 @@ namespace boost
// Contributed by Dave Abrahams
template <class Target, class Source>
inline Target polymorphic_downcast(Source* x BOOST_EXPLICIT_DEFAULT_TARGET)
inline Target polymorphic_downcast(Source* x)
{
BOOST_ASSERT( dynamic_cast<Target>(x) == x ); // detect logic error
return static_cast<Target>(x);
}
# undef BOOST_EXPLICIT_DEFAULT_TARGET
} // namespace boost
# include <boost/numeric/conversion/cast.hpp>