Cleanup: Clang-Tidy, modernize-use-using

Replace `typedef` with `using` in C++ code.

In the case of `typedef struct SomeName { ... } SomeName;` I removed the
`typedef` altogether, as this is unnecessary in C++. Such cases have been
rewritten to `struct SomeName { ... };`

No functional changes.

1 files changed, 2 insertions, 2 deletions

diff --git a/source/blender/simulation/intern/hair_volume.cpp b/source/blender/simulation/intern/hair_volume.cpp
index 123b91edaac..1b65dd8f22c 100644
--- a/source/blender/simulation/intern/hair_volume.cpp
+++ b/source/blender/simulation/intern/hair_volume.cpp
@@ -76,12 +76,12 @@ typedef struct HairGridVert {
   float velocity_smooth[3];
 } HairGridVert;
 
-typedef struct HairGrid {
+struct HairGrid {
   HairGridVert *verts;
   int res[3];
   float gmin[3], gmax[3];
   float cellsize, inv_cellsize;
-} HairGrid;
+};
 
 #define HAIR_GRID_INDEX_AXIS(vec, res, gmin, scale, axis) \
   (min_ii(max_ii((int)((vec[axis] - gmin[axis]) * scale), 0), res[axis] - 2))