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00018 #ifndef VCSN_ALGORITHMS_REDUCE_HH
00019 # define VCSN_ALGORITHMS_REDUCE_HH
00020 
00021 # include <vaucanson/design_pattern/design_pattern.hh>
00022 # include <vaucanson/misc/direction.hh>
00023 
00034 
00035 
00036 
00037 
00038 namespace vcsn {
00039 
00060   template<typename A, typename AI>
00061   Element<A, AI>
00062   reduce(const Element<A, AI>& a, misc::direction_type dir = misc::right_left);
00063 
00084   template<typename A, typename AI>
00085   void
00086   reduce_here(Element<A, AI>& a, misc::direction_type dir = misc::right_left);
00087 
00088 } 
00089 
00090 # if !defined VCSN_USE_INTERFACE_ONLY && !defined VCSN_USE_LIB
00091 #  include <vaucanson/algorithms/reduce.hxx>
00092 # endif // VCSN_USE_INTERFACE_ONLY
00093 
00094 #endif // !VCSN_ALGORITHMS_REDUCE_HH //