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#include <stdlib.h>
static void __swap(char *base, size_t size, size_t b, size_t c)
{
char *x = base + (size * b);
char *y = base + (size * c);
size_t i;
for (i = 0; i < size; i++) {
char tmp = x[i];
x[i] = y[i];
y[i] = tmp;
}
}
static void __qsort(char *base, size_t size, size_t lo, size_t hi, int (*compar)(const void *, const void *))
{
size_t i = lo, j = 0;
if (lo >= hi) {
return;
}
for (j = lo; j < hi; j++) {
if (compar(base + (size * j), base + (size * hi)) < 0) {
__swap(base, size, i, j);
i++;
}
}
__swap(base, size, i, hi);
__qsort(base, size, lo, i - 1, compar);
__qsort(base, size, i + 1, hi, compar);
}
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