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    <p>In C++11, you can do this using tuples:</p> <pre><code>std::tuple&lt;some_type, another_type, yet_another_type&gt; ff(...); some_type x; another_type y; yet_another_type z; std::tie(x,y,z) = ff(a,b,c); </code></pre> <p>If your compiler doesn't support that, the <a href="http://www.boost.org/doc/libs/1_49_0/libs/tuple/doc/tuple_users_guide.html" rel="nofollow">Boost.Tuple</a> library is very similar, but may be more restricted without support from variadic templates.</p> <p>If you really want to support syntax like <code>(x,y,z) = ff(a,b,c);</code>, which might be rather confusing to a C++ programmer even if it does look sensible in Matlab, then you're almost there. You need a separate type similar to your <code>ArgList</code> (perhaps called something like <code>RefList</code>), which contains pointers rather than values, initialises these pointers from non-<code>const</code> references to the results, and has an assignment operator that takes an <code>ArgList</code> (or some other collection of values) and assigns each element via the pointers.</p> <p>You might also want to look at <a href="http://www.boost.org/doc/libs/1_49_0/libs/assign/doc/index.html" rel="nofollow">Boost.Assignment</a> to see how that kind of operator overloading can be made to work. It's a bit of a hassle; in particular, you can't overload operators that act only on built-in types, which rather limits the usefulness of that approach. Personally, I'd use variadic templates instead if C++11 is an option.</p>
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    1. POC++ comma operator overloading and vector of references
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    1. USMike Seymour
    1. USMike Seymour
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    1. COThanks a lot. I already considered Boost.Assignement but i didn't know about std::tuple in C++11. What i want is to avoid using std::anything(x,y,z,w,t) for the end-user of my lib. I can write Proxy classes internal to my lib in order keep the syntaxe for the end-user very simple and very clean. My end-user are not c++ programmers but Matlab programmers. If std::tuple works I must provide comma operator that would construct tuples behand the scene in order make the final expression : (x,y,z,t,w)=ff(a,b,c,d,f,g).
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    2. CO@Yazou: I've added some pointers as to how you might acheive that. Be aware that it will make the code look rather odd to someone accustomed to C++.
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    3. CO@Mile: Thanks again. If C++11 is not an option. What are candidats containers that I can use in my first attemp code (ArgList Proxy) in order to save references to the MX objs ?
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