xfree

#include <stdlib.h>

void xfree (
  void xhuge *p);      /* block to free */

The xfree function returns a memory block to the memory pool. The p argument points to a memory block that was previously allocated with the xcalloc, xmalloc, or xrealloc functions. Once it has been returned to the memory pool by the free function, the block is available for subsequent allocation.

If p is a null pointer, it is ignored.

Note

• Source code for this routine is provide in the LIB folder. You may modify the source to customize this function for your particular hardware environment.
• This function uses xhuge pointers to objects and may be used in any memory model other than Tiny Model.

#include <stdlib.h>
#include <stdio.h> /* for printf */

void tst_free (void) {
  void xhuge *mbuf;

  printf ("Allocating memory\n");
  mbuf = xmalloc (1000);

  if (mbuf == NULL) {
    printf ("Unable to allocate memory\n");
  }

  else {
    xfree (mbuf);
    printf ("Memory free\n");
  }
}