Add consts

Author: joto

src/gen/osm2pgsql-gen.cpp

@@ -272,7 +272,7 @@ void run_tile_gen(std::string const &conninfo, gen_base_t *master_generalizer,
             queue->pop_back();
         }
 
-        tile_t tile{zoom, p.first, p.second};
+        tile_t const tile{zoom, p.first, p.second};
         log_debug("Processing tile {}/{}/{}...", tile.zoom(), tile.x(),
                   tile.y());
         generalizer->process(tile);

src/gen/tracer.cpp

@@ -26,8 +26,9 @@ tracer_t::trace(canvas_t const &canvas, tile_t const &tile, double min_area)
 {
     prepare(canvas);
 
-    potrace_bitmap_t bitmap{int(canvas.size()), int(canvas.size()),
-                            int(canvas.size() / bits_per_word), m_bits.data()};
+    potrace_bitmap_t const bitmap{int(canvas.size()), int(canvas.size()),
+                                  int(canvas.size() / bits_per_word),
+                                  m_bits.data()};
 
     std::unique_ptr<potrace_state_t, potrace_state_deleter> state{
         potrace_trace(m_param.get(), &bitmap)};