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I think it might be useful.

Example of storing:

template<class... Types> struct B {
    typedef Types pack;
};

Example of expanding:

std::tuple<function_traits<void (int,double,float)>::args...> tuple_of_args;

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I think it might be useful.<div><br><div>Example of storing:</div><div><br>=
<div><div>template&lt;class... Types&gt; struct B {</div><div>&nbsp; &nbsp;=
 typedef Types pack;</div><div>};</div></div><div><br></div><div>Example of=
 expanding:</div></div><div><br></div><div>std::tuple&lt;function_traits&lt=
;void (int,double,float)&gt;::args...&gt; tuple_of_args;</div></div>

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