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Re: "No matching function" -- not finding copy constructor

From: Stefan Strasser
Subject: Re: "No matching function" -- not finding copy constructor
Date: Tue, 17 May 2005 18:16:14 +0200
User-agent: Mozilla Thunderbird 1.0.2 (X11/20050331)

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Paul Koning schrieb:
I'm upgrading to V4.0.0 and struggling with some code that's seriously
into templates.  One puzzling error is this one:

keyed_obj.hh:159: error: no matching function for call to 
Indeces.hh:150: note: candidates are: CxnIndex::CxnIndex(CxnIndex&)

this is not a copy constructor, CxnIndex(CxnIndex const &) is...

Indeces.hh:145: note:                 ... and some more

...so these would be interesting.
CxnIndex(CxnIndex &) only accepts non-const l-values.

It's not entirely clear to me why something very much like a copy
constructor is being invoked in the first place.  But the bigger
puzzle is: why isn't the copy constructor being matched?  I would have
thought that any call with a T argument should match a function or
method with an &T argument in its declaration...

Stefan Strasser

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