1 files changed, 5 insertions, 1 deletions
diff --git a/src/mem_map.h b/src/mem_map.h
index c7744bbf3b..1748a0eb67 100644
--- a/src/mem_map.h
+++ b/src/mem_map.h
@@ -72,7 +72,11 @@ class MemMap {
   }
 
   byte* End() const {
-    return begin_ + size_;
+    return Begin() + Size();
+  }
+
+  bool HasAddress(const void* addr) const {
+    return Begin() <= addr && addr < End();
   }
 
   // Trim by unmapping pages at the end of the map.