What's wrong with this piece of code?

03-13-2008

It's just a comman operator<<

friend std:

stream& operator<<(std:

stream& os, const Vertex& v){
return os << "(" << v.getX() << ", " << v.getY()<< ")";
};

The compiling error is:

Vertex.h: In function 'std:

stream& operator<<(std:

stream&, const
Vertex
&)':
Vertex.h:39: error: no match for 'operator<<' in 'os << "("'

Am I missing some subtle mistake there?

03-13-2008

Oh, I figured it out.....

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