Method GetUserData

libraries/muparser/src/muParserCallback.cpp:824–830

\brief Get the user data if present, else nullptr \throw nothrow */

		\throw nothrow
	*/
	void* ParserCallback::GetUserData() const
	{
		if (m_iArgc & CALLBACK_INTERNAL_WITH_USER_DATA)
			return reinterpret_cast<CbWithUserData*>(m_pFun)->pUserData;
		else
			return nullptr;
	}


	/** \brief Check that the callback looks valid