Fix rare data race

I had some misconception about how _Atomic and const worked.
This means the previous commit (expected distribution) could
be incorrect.

1 files changed, 3 insertions, 2 deletions

diff --git a/src/solvers/h48/gendata_cocsep.h b/src/solvers/h48/gendata_cocsep.h
index a8142b4..fd483ce 100644
--- a/src/solvers/h48/gendata_cocsep.h
+++ b/src/solvers/h48/gendata_cocsep.h
@@ -5,7 +5,8 @@ STATIC size_t gendata_cocsep(void *, uint64_t *, cube_t *);
 STATIC uint32_t gendata_cocsep_dfs(cocsep_dfs_arg_t *);
 STATIC void getdistribution_cocsep(const uint32_t *, uint64_t [static 21]);
 
-STATIC_INLINE int8_t get_h48_cdata(cube_t, const uint32_t *, uint32_t *);
+STATIC_INLINE int8_t get_h48_cdata(
+    cube_t, _Atomic const uint32_t *, uint32_t *);
 
 /*
 Each element of the cocsep table is a uint32_t used as follows:
@@ -158,7 +159,7 @@ set_visited(uint8_t *a, int64_t i)
 }
 
 STATIC_INLINE int8_t
-get_h48_cdata(cube_t cube, const uint32_t *cocsepdata, uint32_t *cdata)
+get_h48_cdata(cube_t cube, _Atomic const uint32_t *cocsepdata, uint32_t *cdata)
 {
         int64_t coord;