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Subject: Re: [boost] Implicit cast rules
From: Robert Jones (robertgbjones_at_[hidden])
Date: 2011-05-24 09:53:24

On Tue, May 24, 2011 at 1:41 PM, Krzysztof Czainski <1czajnik_at_[hidden]>wrote:

> The compiler sais "cannot convert 'const C' to 'int'. I think it means
> static_cast<> takes c as a const, and your conversion operator is not a
> const member, so the compiler cannot use it. Solution (not tested):
> operator optional<int>() const { return none; }
That doesn't work either, nor does

cout << ( optional<int> ) c << endl;

but this does

cout << c.operator optional<int>( ) << endl;

But I guess that's not really what you're looking for.


- Rob.

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