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POWhy std::bind can't be param of parameters pack?
 

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  1. POWhy std::bind can't be param of parameters pack?
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    <p>I'd like to use parameters pack, but find the problem. Some code:</p> <pre><code>template &lt;typename Function, typename... Args&gt; auto f(Function func, Args... args) -&gt; decltype(func(args...)) { auto f11 = std::bind(func, args...); f11(); } void print(const char* string) { std::cout &lt;&lt; string &lt;&lt; std::endl; } </code></pre> <p>All of this works well:</p> <pre><code> f([] (const char* additional, const char* more) { std::cout &lt;&lt; "hello ( " &lt;&lt; additional &lt;&lt; ", " &lt;&lt; more &lt;&lt; " )" &lt;&lt; std::endl; }, "additional text", "and one more"); auto printFunction = std::bind(&amp;print, std::placeholders::_1); printFunction("hello from print bind"); f(print, "hello from print directly"); </code></pre> <p>but if i would like to give std::function to parameters pack:</p> <pre><code>f([] (std::function&lt;void(const char*)&gt; printParamFunc) { printParamFunc("hello from print from std::function"); }, printFunction); </code></pre> <p>application no more compiles. </p> <p>So, what the problem to use function as parameter in pack?</p> <p>Thanks.</p> <p><strong>UPDATE:</strong> if change code of f to:</p> <pre><code>template &lt;typename Function, typename... Args&gt; auto f(Function func, Args... args) -&gt; decltype(func(args...)) { func(args...); } </code></pre> <p>it works well, but i wouldn't like to execute this function here, i wanna create function and pass it like param.</p> <p><strong>UPDATE2:</strong> Code execution example: <a href="http://ideone.com/gDjnPq" rel="nofollow">http://ideone.com/gDjnPq</a></p> <p><strong>UPDATE3:</strong> Clear code with compilation error: <a href="http://ideone.com/50z7IN" rel="nofollow">http://ideone.com/50z7IN</a></p>
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    1. COWhen asking about a compilation error, *always* include the full text of the error message.
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    2. CO@Angew compile error is three screens of text
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    3. COThen add the most important parts. Try to decipher it and read what it wants to say. Without the error nobody can help you.
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