Fix compilation issues with assigning values to page_map_variable address

1 files changed, 8 insertions, 5 deletions

diff --git a/arch/x86_64/src/memory/paging.cpp b/arch/x86_64/src/memory/paging.cpp
index 2f78da8..a07b2c0 100644
--- a/arch/x86_64/src/memory/paging.cpp
+++ b/arch/x86_64/src/memory/paging.cpp
@@ -42,12 +42,9 @@ namespace teachos::arch::memory
 
   auto page_table::zero_entries() -> void
   {
-    auto begin = &entries[0];
-    auto end = &entries[PAGE_TABLE_ENTRY_COUNT];
-
-    for (auto entry = begin; entry < end; ++entry)
+    for (size_t i = 0; i < sizeof(entries) / sizeof(entries[0]); ++i)
     {
-      entry->set_unused();
+      entries[i].set_unused();
     }
   }
 
@@ -75,4 +72,10 @@ namespace teachos::arch::memory
 
     return std::nullopt;
   }
+
+  entry & page_table::operator[](std::size_t index)
+  {
+    arch::exception_handling::assert(index < PAGE_TABLE_ENTRY_COUNT, "[Page Table] index out of bounds");
+    return entries[index];
+  }
 }  // namespace teachos::arch::memory