Util

The util algorithms module is for small, reusable primitives that other parts of the library can build on, declarations are in util.h.

Header

#include <util.h>

Functions

swap

void swap(void *l, void *r, size_t sz);

Reads sz bytes starting at l and sz bytes starting at r, writes each block into the other location, so the two regions end up with each other’s prior contents. If sz is zero, neither pointer is accessed for swapping.

Parameters

• l — pointer to the first object
• r — pointer to the second object
• sz — number of bytes to exchange, usually sizeof the value type