[C++-sig] Wrapping operator=

[Pierre Barbier de Reuille]

This is a Python issue : with the '=' operator semantic in Python, you
cannot overide it !

You can create another constructor and have a line like :

msg = Msg("Hello World!")

I think that's you I'd do ...

Pierre

On Tue, 2004-05-18 at 12:06, James Gunn wrote:
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> 
> Hi,
>  
> I'm trying to wrap a very simple class (see below) that has operator=
> but I can't seem to get it right. Can anyone help please?
>  
> class Msg
> {    
> public:
>    Msg() : m_msg() {}
>    ~Msg() {}
>  
>    Msg& operator= (const std::string& msg)
>    {
>        m_msg = msg;
>        return *this;
>    }
>  
>    std::string Get() const { return m_msg; }
>         
>         void Set( const std::string& msg ) { m_msg = msg; }
>  
> private:
>     std::string m_msg;
> };
>  
> I want to be able to allow users to work with the Msg class (from
> Python) as follows:
> msg = "Hello World"
>  
> However, at the moment I've had to use add_property to wrap Get & Set
> which means users then have to do the following:
> msg.value = "Hello World"
>  
> Anyone got any ideas of how I can do this? 
>  
> Thanks in advance.
>  
> James Gunn
> Software Developer
> --LongSig
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Pierre Barbier de Reuille

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