[Olena-patches] milena r1555: convert for graylevel

URL: https://svn.lrde.epita.fr/svn/oln/trunk/milena ChangeLog: 2007-11-27 Matthieu Garrigues &lt;garrigues(a)lrde.epita.fr&gt; convert for graylevel. * mln/value/graylevel.hh: the graylevel type wasn't compatible with the generic convert in convert.hh because of a convertion to int. --- graylevel.hh | 36 +++++++++++++++++++++++++++++++++++- 1 file changed, 35 insertions(+), 1 deletion(-) Index: trunk/milena/mln/value/graylevel.hh =================================================================== --- trunk/milena/mln/value/graylevel.hh (revision 1554) +++ trunk/milena/mln/value/graylevel.hh (revision 1555) @@ -170,7 +170,6 @@ typedef float sum; }; - } // end of namespace mln::trait @@ -247,6 +246,20 @@ + namespace internal + { + + // convert for graylevel + template <unsigned n> + struct convert_< graylevel<n> > + { + static graylevel<n> value_at_index(unsigned i); + static unsigned index_of_value(graylevel<n> v); + }; + + } // end of namespace mln::value::internal + + /// Op<<. template <unsigned n> std::ostream& operator<<(std::ostream& ostr, const graylevel<n>& g); @@ -430,6 +443,27 @@ } + + namespace internal + { + + template <unsigned n> + graylevel<n> + convert_< graylevel<n> >::value_at_index(unsigned i) + { + mln_assertion(i <= mln_max(mln_equiv(graylevel<n>))); + return graylevel<n>(i); + } + + template <unsigned n> + unsigned + convert_< graylevel<n> >::index_of_value(graylevel<n> v) + { + return v.value(); + } + + } // end of namespace mln::value::internal + // Operators. template <unsigned n>