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From: steve@taumet.com (Stephen Clamage)
Newsgroups: comp.lang.c++
Subject: Re: Pointers to overloaded functions
Message-ID: <424@taumet.com>
Date: 28 Aug 90 15:08:28 GMT
References: <1990Aug27.155621@Pkg.Mcc.COM>
Organization: Taumetric Corporation, San Diego
Lines: 30

steve@Pkg.Mcc.COM (Steve Madere) writes:

>I need a way to get a pointer to one of a set of overloaded functions.

>void print(char*);
>void print(int);
>void print(float);

>printmythingy(v,print,ser1);

>How do I specify that the print function that I want is the one that goes
>with the char* argument?

The prototype for printmythingy must show the type of each argument.
Each function of an overloaded set must have a different type.  Thus
you can't help but specify that at most one of any overloaded function
set may be used.  Example:

void printmythingy(T1, void(*)(char*), T2);

For the second argument, you may pass only a function returning void
and having just one parameter of type char*.  There is only one of
the print functions having that type, so writing
	printmythingy(v,print,ser1);
can only result in passing
	void print(char*);
as the print function.
-- 

Steve Clamage, TauMetric Corp, steve@taumet.com