Keep const qualifier for allocator() return value.

1 files changed, 1 insertions, 1 deletions

diff --git a/vespalib/src/vespa/vespalib/stllike/allocator.h b/vespalib/src/vespa/vespalib/stllike/allocator.h
index 3d8c2f03154..efe885f5c96 100644
--- a/vespalib/src/vespa/vespalib/stllike/allocator.h
+++ b/vespalib/src/vespa/vespalib/stllike/allocator.h
@@ -23,7 +23,7 @@ public:
     void deallocate(T * p, std::size_t n) {
         _allocator->free(p, n*sizeof(T));
     }
-    alloc::MemoryAllocator * allocator() const { return _allocator; }
+    const alloc::MemoryAllocator * allocator() const { return _allocator; }
 private:
     const alloc::MemoryAllocator * _allocator;
 };