function prototype with multiple parameters including void

Question

I have a piece of software in which there is a function ie:

void function_name(structure_t *param1, void *param2){code....}

I am trying to create a function prototype for this function so it can be linked to another function that occurs before it. I have tried the below line with no success, it does not want to compile.

void function_name(structure_t, void);

I have this line below the associated structure but my guess is the problem is related to the void. The function itself takes the void *param2, which to be honest, confuses me but it works.

The compiler gives the error message: "'void' must be the only parameter"

What language are you working in?

Adam Wenger
– Adam Wenger

2011-12-02 06:33:36 +00:00
Commented Dec 2, 2011 at 6:33 — Adam Wenger
– Adam Wenger, Commented Dec 2, 2011 at 6:33

defekkt · Accepted Answer · 2011-12-01 18:05:10Z

1

The Function declaration is missing the * to define the arguments as pointers!

void function_name(structure_t *, void *);

answered Dec 1, 2011 at 18:05

defekkt

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2 Comments

Mephysto Over a year ago

thanks, that did resolve the problem with the function prototype but now it is saying that the two types do not match. I typed them exactly as they are in the code, any idea what could be wrong?

defekkt Over a year ago

would really need the code for that... but my guess would be that it's not using the same structure_t in the declaration as in the definition.

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