/* This file is in the public domain. */

#include <strings.h>

#include "dequal.h"

/*
 * Strip qualifiers (const, volatile) from a pointer, generic C
 *  version.
 */

/*
 * There are at least three ways I know of to do this.  Since
 *  qualifiers are defined to not affect storage size and
 *  representation, this is a reasonably portable way, albeit quite
 *  possibly less efficient than one might wish.  (If the compiler
 *  recognizes bcopy it can be basically optimized away, though.)  I
 *  don't worry too much about efficiency here because this is used
 *  only when we're about to writev(), which carries a _much_ heavier
 *  performance cost (on most machines, the crossing into the kernel
 *  alone swamps this bcopy).
 *
 * See dequal.h for more.
 */
void *dequal(const volatile void *v)
{
 void *rv;

 bcopy(&v,&rv,sizeof(void *));
 return(rv);
}