[GL] Fix cppcoreguidelines-pro-type-member-init.

GeoLib/Grid.h

@@ -377,7 +377,7 @@ template <typename POINT>
 template <typename T>
 std::array<std::size_t,3> Grid<POINT>::getGridCoords(T const& pnt) const
 {
-    std::array<std::size_t,3> coords;
+    std::array<std::size_t,3> coords{};
     for (std::size_t k(0); k < 3; k++)
     {
         if (pnt[k] < _min_pnt[k])
@@ -407,7 +407,7 @@ template <typename P>
 std::array<double,6> Grid<POINT>::getPointCellBorderDistances(P const& p,
     std::array<std::size_t,3> const& coords) const
 {
-    std::array<double,6> dists;
+    std::array<double,6> dists{};
     dists[0] = std::abs(p[2]-_min_pnt[2] + coords[2]*_step_sizes[2]); // bottom
     dists[5] = std::abs(p[2]-_min_pnt[2] + (coords[2]+1)*_step_sizes[2]); // top
 

GeoLib/Raster.cpp

@@ -99,7 +99,7 @@ double Raster::interpolateValueAtPoint(MathLib::Point3d const& pnt) const
     std::array<int,4> const y_nb = {{ 0, 0, yShiftIdx, yShiftIdx }};
 
     // get pixel values
-    std::array<double,4>  pix_val;
+    std::array<double,4>  pix_val{};
     unsigned no_data_count (0);
     for (unsigned j=0; j<4; ++j)
     {

GeoLib/SurfaceGrid.h

@@ -38,8 +38,8 @@ private:
     bool sortTriangleInGridCells(GeoLib::Triangle const*const triangle);
     boost::optional<std::array<std::size_t,3>>
         getGridCellCoordinates(MathLib::Point3d const& p) const;
-    std::array<double,3> _step_sizes;
-    std::array<double,3> _inverse_step_sizes;
+    std::array<double,3> _step_sizes{};
+    std::array<double,3> _inverse_step_sizes{};
     std::array<std::size_t,3> _n_steps;
     std::vector<std::vector<GeoLib::Triangle const*>> _triangles_in_grid_box;
 };