structure error

[sailor0815]

Hello,

I have a structure argument for a function.
For example:

[draghi]

Try to typedef the structure first and than declare the variables of this type.

[Ttelmah]

The prototype defintion, needs the matching variable name.
In CCS, the prototypes must be _identical_ to the real defintions....

Best Wishes

[sailor0815]

Hello,

I've changed, but same error.
any other hint?

thanks in advance

wolfgang

struct pulsstruct { int8 channel;
int32 delay;
int32 pulsewidth;};

main {
struct pulsstruct puls, *pptr;
pptr=&puls;
savevalues(pptr);
}

void savevalues(struct pulsstruct *pptr);

void savevalues(struct pulsstruct *pptr) {
int8 value;
value=pptr->channel;
}

[PCM programmer]

[Wayne_]

As PCM programmer showed, you need to learn some basics and one of them for standard C is the prototype for the function needs to be BEFORE it is used.

Where is the first place you call savevalues ?
Answer, in main.

Where have you placed your prototype ?
Answer, after main.

So when the compiler gets to the function call savevalues in main it will have no idea what it is supposed to be and will fail with an error, I am not sure this is the error you are seeing and yes it would be easy for me to test but ...

Put your function prototype before main but after the struct definition other wise the compiler may complain that it doesn't know what pulsstruct is.