[core] clang-tidy fixes

3 files changed, 4 insertions, 6 deletions

diff --git a/src/mbgl/util/string.cpp b/src/mbgl/util/string.cpp
index 2f737e7436..5d3e44bff6 100644
--- a/src/mbgl/util/string.cpp
+++ b/src/mbgl/util/string.cpp
@@ -78,7 +78,7 @@ std::string toPaddedHex(T x) {
     return result;
 }
 
-}
+} // namespace
 
 std::string toHex(size_t value) {
     return toPaddedHex(value);
diff --git a/src/mbgl/util/tile_cover.cpp b/src/mbgl/util/tile_cover.cpp
index 7979c550a9..5189b79f26 100644
--- a/src/mbgl/util/tile_cover.cpp
+++ b/src/mbgl/util/tile_cover.cpp
@@ -237,9 +237,7 @@ TileCover::TileCover(const Geometry<double>& geom, int32_t z, bool project/* = t
  : impl( std::make_unique<TileCover::Impl>(z, geom, project)) {
 }
 
-TileCover::~TileCover() {
-
-}
+TileCover::~TileCover() = default;
 
 optional<UnwrappedTileID> TileCover::next() {
     return impl->next();
diff --git a/src/mbgl/util/tile_cover_impl.cpp b/src/mbgl/util/tile_cover_impl.cpp
index f783dfc4bd..e7181eeb5f 100644
--- a/src/mbgl/util/tile_cover_impl.cpp
+++ b/src/mbgl/util/tile_cover_impl.cpp
@@ -3,8 +3,8 @@
 
 #include <functional>
 #include <cmath>
-#include <assert.h>
-#include <limits.h>
+#include <cassert>
+#include <climits>
 #include <algorithm>
 
 namespace mbgl {