reserve delta vector beforehand to avoid realocations.

2014-11-01 17:32:49 -04:00 · 2014-11-01 17:32:49 -04:00 · e26ef17545
commit e26ef17545
parent 800bb223b5
1 changed files with 1 additions and 0 deletions
--- a/Algorithms/polyline_compressor.cpp
+++ b/Algorithms/polyline_compressor.cpp
@ -81,6 +81,7 @@ PolylineCompressor::get_encoded_string(const std::vector<SegmentInformation> &po
    }

    std::vector<int> delta_numbers;
+    delta_numbers.reserve((polyline.size() - 1) * 2);
    FixedPointCoordinate previous_coordinate = {0, 0};
    for (const auto &segment : polyline)
    {