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-rw-r--r--boost/geometry/algorithms/within.hpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/boost/geometry/algorithms/within.hpp b/boost/geometry/algorithms/within.hpp
index 0e0cb68d53..f1f0993d77 100644
--- a/boost/geometry/algorithms/within.hpp
+++ b/boost/geometry/algorithms/within.hpp
@@ -65,7 +65,7 @@ struct point_in_ring
static inline int apply(Point const& point, Ring const& ring,
Strategy const& strategy)
{
- if (boost::size(ring)
+ if (int(boost::size(ring))
< core_detail::closure::minimum_ring_size<Closure>::value)
{
return -1;