Re: Using std::bind2nd with class member functions which accept const reference as parameter
Vladimir Grigoriev wrote:
it = std::find_if( v.begin(), v.end(), std::bind2nd(
std::const_mem_fun1_ref_t<bool, Point, Point>( &Point::equal_to ), =
5 ) ) );
The code above works.
However if the member function equal_to will be changed as
bool equal_to( const Point &rhs ) const;
then how can it be called the find_if() for this member function?
Basically, it can't. It's a known problem with the standard that bind* =
family can't handle reference parameters. C++0x deals with it by a) =
allowing references to references (T& & simply collaspes to T&; I think =
this was added in C++03); and b) providing the new, very flexible bind() =
function that can take pretty much anything, modeled after boost::bind:
and deprecating bind2nd et al.
With best wishes,
With sufficient thrust, pigs fly just fine. However, this is not =
necessarily a good idea. It is hard to be sure where they are going to =
land, and it could be dangerous sitting under them as they fly overhead. =
-- RFC 1925
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