removed warning from example.cpp
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		@@ -94,7 +94,7 @@ int main(int, char* [])
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// Example of user defined class with operator<<
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					// Example of user defined class with operator<<
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//
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					//
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class some_class {};
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					class some_class {};
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std::ostream& operator<<(std::ostream& os, const some_class& c) { return os << "some_class"; }
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					std::ostream& operator<<(std::ostream& os, const some_class&) { return os << "some_class"; }
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void custom_class_example()
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					void custom_class_example()
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{
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					{
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