Implicit conversion error using g++

[Alexandre Oliva]

On Jul  9, 2001, David Berthelot <davidb@Magma-DA.COM> wrote:

> Alexandre Oliva wrote:

>> Nope.  Both lines perform object initialization, so the assignment
>> operator plays no role.  The difference is that `Baz b1(bar)' is a
>> direct initialization, whereas `Baz b2 = bar' is a copy
>> initialization.  The former may use a user-defined conversion sequence
>> plus a constructor, but the latter needs a single user-defined
>> conversion sequence, that can contain either a constructor or a
>> conversion function.  See [dcl.init]/11-14 for details.

> Ok, I get it. In fact line 14 would translate by:
> - Baz(const Foo&) (right hand side of equal)
> - Baz(const Baz&) (for b2)
> Am I correct ?

Yep

> So the code is supposed to work ?

Nope, because a user-defined conversion sequence can involve no more
than a single constructor *or* a single user-defined conversion
function.

-- 
Alexandre Oliva   Enjoy Guarana', see http://www.ic.unicamp.br/~oliva/
Red Hat GCC Developer                  aoliva@{cygnus.com, redhat.com}
CS PhD student at IC-Unicamp        oliva@{lsd.ic.unicamp.br, gnu.org}
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