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Beginner
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Compiler bug in XE 2015: error : no instance of function template "..." matches the argument list

Hi,

the following code:

#include <tuple>

struct Foo {
	std::tuple<int> inner;
	template <unsigned Idx>
	auto get() const -> decltype(std::get<Idx>(inner)) { return std::get<Idx>(inner); }
};

int main()
{
	Foo f;
	f.get<0>();
}

produces the following error:

1>main.cpp(12): error : no instance of function template "Foo::get" matches the argument list
1>              object type is: Foo
1>    	f.get<0>();
1>    	  ^

It seems as if the compiler is not able to deduce the trailing return type.

Best regards,
Manuel Pöter

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1 Reply
Highlighted
Employee
62 Views

Thanks for your report. I also see this problem in 16.0 beta. I escalated this issue to the development team and I'll let you know when I have an update.

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