Re: [Boost-users] [function]unwanted conversion

20 Jul 2006


      ----- Original Message ----- 
From: "Sebastian Redl" <sebastian.redl@getdesigned.at>
To: <boost-users@lists.boost.org>
Sent: Wednesday, July 19, 2006 6:41 PM
Subject: Re: [Boost-users] [function]unwanted conversion
...
Sean Huang wrote:
...
Is there any reason why boost::function allows such conversions?
Boost.Function tries to behave as if it were a function pointer. And
like all pointers, function pointers can be assigned an integral
constant with the value 0, resulting in a null pointer. Thus, you can
assign 0 and char() to a Boost.Function.
Now I see as long as boost::function allows assignment (or copy 
construction) from a function pointer, this conversion is always valid.

Thanks,

Sean