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make sure ranges are not empty. 

benchmark results are still valid
This commit is contained in:
Sébastien Loriot 2012-05-30 15:52:46 +00:00
parent a4b5ae22aa
commit d6f0881f52
1 changed files with 7 additions and 4 deletions
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3
Convex_hull_2/include/CGAL/Convex_hull_2/ch_akl_toussaint_impl.h
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@ -199,8 +199,11 @@ ch_akl_toussaint(ForwardIterator first, ForwardIterator last,
//several calls to avoid filter failures when using n,s,e,w //several calls to avoid filter failures when using n,s,e,w
internal::ch_akl_toussaint_assign_points_to_regions(first,cpp0x::get<0>(ranges),left_turn,e,w,n,s,region1,region2,region3,region4,ch_traits); internal::ch_akl_toussaint_assign_points_to_regions(first,cpp0x::get<0>(ranges),left_turn,e,w,n,s,region1,region2,region3,region4,ch_traits);
if ( cpp0x::get<0>(ranges)!=cpp0x::get<1>(ranges) )
internal::ch_akl_toussaint_assign_points_to_regions(cpp0x::next(cpp0x::get<0>(ranges)),cpp0x::get<1>(ranges),left_turn,e,w,n,s,region1,region2,region3,region4,ch_traits); internal::ch_akl_toussaint_assign_points_to_regions(cpp0x::next(cpp0x::get<0>(ranges)),cpp0x::get<1>(ranges),left_turn,e,w,n,s,region1,region2,region3,region4,ch_traits);
if ( cpp0x::get<1>(ranges)!=cpp0x::get<2>(ranges) )
internal::ch_akl_toussaint_assign_points_to_regions(cpp0x::next(cpp0x::get<1>(ranges)),cpp0x::get<2>(ranges),left_turn,e,w,n,s,region1,region2,region3,region4,ch_traits); internal::ch_akl_toussaint_assign_points_to_regions(cpp0x::next(cpp0x::get<1>(ranges)),cpp0x::get<2>(ranges),left_turn,e,w,n,s,region1,region2,region3,region4,ch_traits);
if ( cpp0x::get<2>(ranges)!=cpp0x::get<3>(ranges) )
internal::ch_akl_toussaint_assign_points_to_regions(cpp0x::next(cpp0x::get<2>(ranges)),cpp0x::get<3>(ranges),left_turn,e,w,n,s,region1,region2,region3,region4,ch_traits); internal::ch_akl_toussaint_assign_points_to_regions(cpp0x::next(cpp0x::get<2>(ranges)),cpp0x::get<3>(ranges),left_turn,e,w,n,s,region1,region2,region3,region4,ch_traits);
internal::ch_akl_toussaint_assign_points_to_regions(cpp0x::next(cpp0x::get<3>(ranges)),last,left_turn,e,w,n,s,region1,region2,region3,region4,ch_traits); internal::ch_akl_toussaint_assign_points_to_regions(cpp0x::next(cpp0x::get<3>(ranges)),last,left_turn,e,w,n,s,region1,region2,region3,region4,ch_traits);