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Re: [Patch] Use variadic templates for tr1::is_function


Doug Gregor wrote:

I'm terrible at declarator syntax :)

:)


Anyway, this works fine:

typedef int (*F)(double); // F is the type of a function object. It happens to be a function pointer

std::result_of<F(double)>::type // resolves to "int"

Yes, that works fine, I know. Something I do *not* understand, however, is why this does not work, what is so different about it:


typedef int (F)(double);

std::result_of<F(double)>::type

Maybe I'm missing something, seems certainly useful to me and implementable...

Paolo.


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