Avoid unaligned memory access

rui314 · May 17, 2024 · 91f9c4d · 91f9c4d
1 parent 416b0d3
commit 91f9c4d
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/elf/icf.cc b/elf/icf.cc
@@ -82,7 +82,10 @@ using Digest = std::array<uint8_t, HASH_SIZE>;
 namespace std {
 template <> struct hash<Digest> {
   size_t operator()(const Digest &k) const {
-    return *(int64_t *)&k[0];
+    static_assert(sizeof(size_t) <= HASH_SIZE);
+    size_t val;
+    memcpy(&val, k.data(), sizeof(size_t));
+    return val;
   }
 };
 }