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prealloc memory with reserve

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This commit is contained in:
artemp 2016-05-18 11:18:26 +02:00
parent c10c271430
commit c85c0fd025
1 changed files with 2 additions and 2 deletions
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4
include/mapnik/json/topojson_utils.hpp
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@ -437,7 +437,7 @@ struct feature_generator
}
processed_coords.emplace_back(coordinate{x,y});
}
linear_ring.reserve(linear_ring.size() + processed_coords.size());
if (reverse)
{
for (auto const& c : processed_coords | boost::adaptors::reversed)
@ -519,7 +519,7 @@ struct feature_generator
}
using namespace boost::adaptors;
linear_ring.reserve(linear_ring.size() + processed_coords.size());
if (reverse)
{
for (auto const& c : (processed_coords | reversed))