Re: [Boost-users] bind()ing only some arguments of a member function

13 Feb 2006


      Sean Rhea wrote:
...
Hello,
Can someone please tell me why this doesn't work?
#include 
#include 
#include 
using namespace std;
using namespace boost;
struct MyClass {
     int i;
     void foo(int j){
         printf("%d, %d\n", i, j);
     }
     function bar() {
         return bind<void>(&MyClass::foo, this);
     }
};
Unlike some other libraries, bind does not automatically append incoming 
arguments to the call; if you say bind( f, 5 ), it calls f( 5 ), regardless 
of how many input arguments are supplied. If you want the first input 
argument to be passed to MyClass::foo, you need to mention it explicitly, 
using _1:

    bind( &MyClass::foo, this, _1 )

Re: [Boost-users] bind()ing only some arguments of a member function

Peter Dimov