Many thanks for your answer. I unfortunately looked in the other documents, which were related to rvalue only. With Kind Regards, Ovanes On 10/26/07, AlisdairM wrote:

Ovanes Markarian wrote:

...

I am just wondering, that the upcoming standard does not provide the is_rvalue type_trait. At least I did not find it in the mailings. Since there is an is_reference trait and rvalues are going to be added to the standard, don't you think the is_rvalue should be a part of upcoming standard type_traits?

The last working draught I looked at has both is_rvalue_reference and is_lvalue_reference, in addition to is_reference which matches either.

http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2369.pdf

See 20.4.4.1, table 41

-- AlisdairM

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