From: gamma AT space DOT net (gamma)
Newsgroups: comp.os.msdos.djgpp
Subject: Linking problems with overloading operator<<
Date: Thu, 15 Oct 1998 20:04:32 GMT
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To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

I am having problems linking files that have the insertion and
extraction operators overloaded.... here is a little snippet of
code...

//Golfer.h

#ifndef _GOLFER_H_
#define _GOLFER_H_

#include <string>
#include <iostream>
using namespace std;

class Golfer  
{
	friend ostream& operator<<(ostream&, const Golfer&);
	friend istream& operator>>(istream&, Golfer&);
.
.
.
}

ostream& operator<<(ostream& gout, const Golfer& outGolfer)
{
	gout << outGolfer.PIT << "\t" << outGolfer.name << "\t" <<
outGolfer.rank;
	return gout;
}
.
.
.

#endif

This complies okay but returns these linker errors.

Error:  Golfer.o :  In fraction 'operator<<(ostream &, Golfer const
&)':
Error:  Golfer.cpp(.text+0x4): multiple definition of
'operator<<(ostream &, Golfer const &)'

Any help would be greatly appreciated 
Thanks
Charlie Mac.