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Fix typo error in usertype.rst
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@ -92,7 +92,7 @@ If you don't specify any constructor options at all and the type is `default_con
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- If you pass the ``constructors<...>`` argument first when constructing the usertype, then it will automatically be given a ``"{name}"`` of ``"new"``
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* ``"{name}", sol::initializers( func1, func2, ... )``
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- Used to handle *initializer functions* that need to initialize the memory itself (but not actually allocate the memory, since that comes as a userdata block from Lua)
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- Given one or more functions, provides an overloaded Lua function for creating a the specified type
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- Given one or more functions, provides an overloaded Lua function for creating the specified type
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+ The function must have the argument signature ``func( T*, Arguments... )`` or ``func( T&, Arguments... )``, where the pointer or reference will point to a place of allocated memory that has an uninitialized ``T``. Note that Lua controls the memory, so performing a ``new`` and setting it to the ``T*`` or ``T&`` is a bad idea: instead, use ``placement new`` to invoke a constructor, or deal with the memory exactly as you see fit
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* ``{anything}, sol::factories( func1, func2, ... )``
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- Used to indicate that a factory function (e.g., something that produces a ``std::unique_ptr<T, ...>``, ``std::shared_ptr<T>``, ``T``, or similar) will be creating the object type
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