From 9ebed4deab20fdd71eeefaded2cc624705cfcddf Mon Sep 17 00:00:00 2001
From: Greg Burd <greg@burd.me>
Date: Tue, 16 Apr 2024 05:52:19 -0400
Subject: [PATCH] align data

---
 src/sparsemap.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/sparsemap.c b/src/sparsemap.c
index 1cd69ac..67e8b14 100644
--- a/src/sparsemap.c
+++ b/src/sparsemap.c
@@ -818,7 +818,8 @@ sparsemap(size_t size)
 
   sparsemap_t *map = (sparsemap_t *)calloc(1, total_size);
   if (map) {
-    sparsemap_init(map, (uint8_t *)((uintptr_t)map + sizeof(sparsemap_t) + padding), size);
+    uint8_t *data = (uint8_t *)(((uintptr_t)map + sizeof(sparsemap_t)) & ~ (uintptr_t)7);
+    sparsemap_init(map, data, size);
     __sm_when_diag({ __sm_assert(IS_8_BYTE_ALIGNED(map->m_data)); });
   }
   sparsemap_clear(map);
@@ -875,7 +876,7 @@ sparsemap_set_data_size(sparsemap_t *map, size_t size)
     }
     memset(((uint8_t *)m) + sizeof(sparsemap_t) + (m->m_capacity * sizeof(uint8_t)), 0, size - m->m_capacity + padding);
     m->m_capacity = data_size;
-    m->m_data = (uint8_t *)((uintptr_t)m + sizeof(sparsemap_t) + padding);
+    m->m_data = (uint8_t *)(((uintptr_t)m + sizeof(sparsemap_t)) & ~ (uintptr_t)7);
     __sm_when_diag({ __sm_assert(IS_8_BYTE_ALIGNED(m->m_data)); }) return m;
   } else {
     map->m_capacity = size;