C++0x, How do I expand a tuple into variadic template function arguments?

Posted by Gustaf on Stack Overflow See other posts from Stack Overflow or by Gustaf
Published on 2009-03-26T20:43:34Z Indexed on 2011/06/24 8:22 UTC
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c++0x

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Consider the case of a templated function with variadic template arguments:

template<typename Tret, typename... T> Tret func(const T&... t);

Now, I have a tuple t of values. How do I call func() using the tuple values as arguments? I've read about the bind() function object, with call() function, and also the apply() function in different some now-obsolete documents. The GNU GCC 4.4 implementation seems to have a call() function in the bind() class, but there is very little documentation on the subject.

Some people suggest hand-written recursive hacks, but the true value of variadic template arguments is to be able to use them in cases like above.

Does anyone have a solution to is, or hint on where to read about it?

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