Re: [boost] RE: Function Binding

From: Douglas Gregor (gregod_at_[hidden])
Date: 2002-12-16 09:15:05

On Monday 16 December 2002 01:39 am, Greg Dehaas wrote:
> //Macros for binding functions + methods
> #define BINDMETHOD5(object,function)
> boost::bind(function,object,_1,_2,_3,_4,_5)
> #define BINDFUNCTION5(function) boost::bind(function,_1,_2,_3,_4,_5)
> #define BINDMETHOD4(object,function)
> boost::bind(function,object,_1,_2,_3,_4)
> #define BINDFUNCTION4(function) boost::bind(function,_1,_2,_3,_4)
> #define BINDMETHOD3(object,function) boost::bind(function,object,_1,_2,_3)
> #define BINDFUNCTION3(function) boost::bind(function,_1,_2,_3)
> #define BINDMETHOD2(object,function) boost::bind(function,object,_1,_2)
> #define BINDFUNCTION2(function) boost::bind(function,_1,_2)
> #define BINDMETHOD1(object,function) boost::bind(function,object,_1)
> #define BINDFUNCTION1(function) boost::bind(function,_1)
> #define BINDMETHOD(object,function) BINDMETHOD1(object,function)
> #define BINDFUNCTION(function) BINDFUNCTION1(object,function)

The BINDFUNCTION macros aren't actually needed. Anywhere that you would have:

  boost::functionN<...> f;
  f = BINDFUNCTION(g);

You could have just written:
  boost::functionN<...> f;
  f = g;

I'd also strongly suggest that you don't use the BINDMETHOD macros, because 
sooner or later you'll find yourself needing to use more of bind's features.

        Doug