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-rw-r--r--src/emu/device.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/emu/device.h b/src/emu/device.h
index 6a2229051e0..aa0de3f77a3 100644
--- a/src/emu/device.h
+++ b/src/emu/device.h
@@ -120,7 +120,8 @@ public:
pointer m_type = nullptr;
};
- device_registrar() = default;
+ // explicit constructor is required for const variable initialization
+ constexpr device_registrar() { }
const_iterator begin() const { return cbegin(); }
const_iterator end() const { return cend(); }