Re: bind2nd, mem_fun, and references
"Dilip" <rdilipk@lycos.com> wrote in message
news:1152978898.222928.265360@h48g2000cwc.googlegroups.com...
P.J. Plauger wrote:
"Noah Roberts" <roberts.noah@gmail.com> wrote in message
news:1152920770.393499.220010@h48g2000cwc.googlegroups.com...
Alf P. Steinbach wrote:
* Noah Roberts:
#include <vector>
#include <algorithm>
#include <functional>
class X
{
int x;
public:
X(int i) : x(i) {}
bool eq(const X & other) const { return x == other.x; }
};
int main(int argc, char* argv[])
{
std::vector<X> xes(10);
X x(10);
std::vector<X>::iterator it = std::find_if(xes.begin(), xes.end(),
std::bind2nd(std::mem_fun(&X::eq), x));
return 0;
}
Compilation result:
1>c:\program files\microsoft visual studio
8\vc\include\functional(312)
: error C2529: '_Right' : reference to reference is illegal
binder2nd(const _Fn2& _Func,
const typename _Fn2::second_argument_type& _Right)
: op(_Func), value(_Right)
{ // construct from functor and right operand
}
This would follow...
So, what is the correct and portable way to do what I want or is it
just not possible?
One way could be to use to Boost binders (don't know if that works,
but
probably, else I would probably have remembered).
That's out until I can convince boss Boost good.
Perhaps you can convince your boss that TR1 is good, since it will be
part of the next C++ Standard. And you can now get a version that works
out of the box with VC++ from us.
I tried my best doing this and it just doesn't seem to work with
certain types of bosses unless the std library comes bundled with some
high & mighty version of the VC++ compiler (9.0 perhaps?).
We're working on that.
Does
Dinkumware's TR1 library compile with VC++ 8.0?
Yes, even the Express Edition.
P.J. Plauger
Dinkumware, Ltd.
http://www.dinkumware.com
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