Generic Sort

Hello All,

I'm trying to replicate a general purpose sort function (think qsort)

void sort(void *arr, const int num, size_t size,
int (*cmp)(void *a, void *b))
{
int i = 0 ;
int j = 0 ;

for (i = (num - 1) ; i >= 0 ; i--)
{
for (j = 1 ; j <= i ; j++)
{
if(cmp((int *) &arr[j-1], (int *) &arr[j])) //Error
{
//swapping logic
}
}
}
}

MSVC 8 (2005) reports 2 errors when trying to call cmp:-

error C2036: 'void *' : unknown size
error C2036: 'void *' : unknown size

I've tried a few variations, but I can't seem to get it right. Can
anybody help?

Thanks in advance.

.

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