-----Original Message----- From: boost-users-bounces@lists.boost.org [mailto:boost-users-bounces@lists.boost.org] On Behalf Of Peter Dimov Sent: Wednesday, October 05, 2005 10:41 AM To: boost-users@lists.boost.org Subject: Re: [Boost-users] [bind] Member fn has defeated me

BRIDGES Dick wrote:

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BRIDGES Dick wrote:

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class Bar { typedef void (*pf)(bool);

If you make this

typedef boost::function pf;

[snip]

...

then

Bar bar_( boost::bind(&X::f, &x) );

should work. But you can't get an oridnary function pointer from boost::bind; a function pointer doesn't have enough state to represent &X::f + &x.

[...]

I omitted too much of the context, sorry ;-) For

struct X

{ void f(bool b) {} }

the correct thing would be to use boost::bind(&X::f, &x, _1) so that the bool argument from pf (the first input argument is _1 in bind notation) can be passed to X::f.

Works fine now. I don't know why I find boost::bind so mysterious, but I *WILL* learn! Thank you for both the answers and your patience. Regards, Dick