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To
specify static member functions, we must declare the
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functions
to be static in the class definition (interface
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file)
using the keyword static .
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Then,
define those static member functions in the class
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implementation
file.
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The
definition of our static member functions should
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look
identical to the definition of non-static member
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functions.
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The
scope of a static member function is the same as that
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of a
non-static member function.
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Access
to a static member function from outside the class
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is
the same as access to a non-static member function and
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depends
on whether the member is declared as public,
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protected,
or private.
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