How do you write a functions declaration?

If I have this function..

Code:

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void push(void *value, void *stack)
{
    //code
}

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how do you write its function declaration?

like this?

Code:

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void push(void, void);

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Code:

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void push(void *,void *);

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You can do as ch4 mentions, but it is perfectly acceptable (and a good idea) to use

Code:

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void push(void *value, void *stack);

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as your function prototype. (This way, just by reading the header, you can tell which argument does what.)