[Boost-users] [Concept_Check] Is "int &" copy constructible?

From: Wu Yinghui, Freddie (yhwu_at_[hidden])
Date: 2007-04-13 05:59:36

Hi all,

I came to this question, since I found that my program using
Boost.Concept_check failed to compile when reference types are used as
models for the copy constructible concept.

I can understand why it failed to compile, as the error messages below
explained it:
=== snip ===
..\..\..\boost-1.34\include\boost\concept_check.hpp(176) : warning
C4181: qualifier applied to reference type; ignored
..\..\..\boost-1.34\include\boost\concept_check.hpp(176) : error C2529:
'a' : reference to reference is illegal
=== snip ===

But my question is more fundamental than this: Is a reference type
considered "copy constructible" according to the C++ standard? (Sorry,
since I don't have a copy of the Standard at hand, nor am I very good in
English to comprehend the Standard even if I had one.) Can any kind soul
enlighten me on this concept?

Cheers,

Freddie

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Wu Yinghui, Freddie
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