[Boost-users] Re boost::bind

From: Martin Fisher (mnfisher_at_[hidden])
Date: 2007-11-28 05:13:33

I'm trying to use boost::bind - and I'm probably doing something very 
obviously wrong, but code blindness has set in.

A simple example:

I have

class X {
    public:
       void t(int a, int b) { cout << a * b << endl; }
};

then in main...
vector<int> v;   // filled with some ints
for_each(v.begin(), v.end(), boost::bind(&X::t, _1, 4));    // or _1, 4

But this doesn't compile - using Borland Turbo C++ (or Visual C++)

Elsewhere in my code I use

        for_each(istream_iterator<string>(f), 
istream_iterator<string>(), boost::bind(Inserter<T>(), boost::ref(m), _1));

Which works just fine...
I'm sure it's something strikingly obvious - but as far as I can see I'm 
doing much the same as in the docs ?

Thanks for any comments.

Martin