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W8045: No declaration for function 'function' (C++)

(Command-line option to display warning: -wnod)

This message is given if you call a function without first declaring that function.

In C, you can declare a function without presenting a prototype, as in

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    int func();

In C++, every function declaration is also a prototype; this example is equivalent to

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    int func(void);

The declaration can be either classic or modern (prototype) style.

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