Question

This is my function

int mkvCopyWord(uint8_t *pBuffer, UINT8 temp):

main() 
{
uint8_t a[10];
mkvCopyWord(&a,10);
}

its says warning : note: expected ‘uint8_t *’ but argument is of type ‘uint8_t (*)[10]’

how to remove this warning..?

Answer 1

Your syntax for passing a pointer-to-array is fine. But you are trying to pass it to something that doesn’t want a pointer-to-array. It just wants a pointer to the beginning element. The simplest way to get that is to allow the array name to decay to a pointer, thus mkvCopyWord(a, 10). The function will assume that the pointer you give it is pointing to some sequence of uint8_ts somewhere – that is why you have to pass the array size as another parameter, because it does not know about the array, it only has some address in memory where the array is.