diff options
Diffstat (limited to 'src/mbgl/algorithm/update_tile_masks.hpp')
| -rw-r--r-- | src/mbgl/algorithm/update_tile_masks.hpp | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/mbgl/algorithm/update_tile_masks.hpp b/src/mbgl/algorithm/update_tile_masks.hpp index a7840cd163..c475473cb6 100644 --- a/src/mbgl/algorithm/update_tile_masks.hpp +++ b/src/mbgl/algorithm/update_tile_masks.hpp @@ -95,10 +95,12 @@ void computeTileMasks( // Only other Renderables that are *children* of the Renderable we are generating the mask for will // be considered. For example, adding a Renderable with TileID 4/8/13 won't affect the TileMask for // 2/1/3, since it is not a descendant of it. +// +// The given |renderables| must be sorted by id. template <typename Renderable> void updateTileMasks(std::vector<std::reference_wrapper<Renderable>> renderables) { - std::sort(renderables.begin(), renderables.end(), - [](const Renderable& a, const Renderable& b) { return a.id < b.id; }); + assert(std::is_sorted(renderables.begin(), renderables.end(), + [](const Renderable& a, const Renderable& b) { return a.id < b.id; })); TileMask mask; const auto end = renderables.end(); |