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Question about One Definition Rule

Nusrat Nuriyev
on
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Last Modified: 2015-03-10
Hello dear EE-ers,

There is a quote:
In the entire program, an object or non-inline function cannot have more than one definition; if an object or function is used, it must have exactly one definition. You can declare an object or function that is never used, in which case you don't have to provide a definition. In no event can there be more than one definition.

Please, provide example about this statement, especially regarding "in no even can there be more that one definition".

Thanks.
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