Friend function: Difference between revisions

Revision as of 20:49, 6 October 2016

Revision as of 08:03, 10 October 2016

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A friend function is declared by the class that is granting access, so friend functions are part of the class interface, like methods. Friend functions allow alternative syntax to use objects, for instance <code>f(x)</code> instead of <code>x.f()</code>, or <code>g(x,y)</code> instead of <code>x.g(y)</code>. Friend functions have the same implications on [[separation of concerns|encapsulation]] thanas methods.

A similar concept is that of [[friend class]].