#ifndef SAFECAST_H

#define SAFECAST_H

#include <limits.h>

static inline int size2int_chk(size_t v)

{

  if (v > INT_MAX)

    abort();

  return (int)(v);

}

static inline int size2int_sat(size_t v)

{

  return (v > INT_MAX) ? INT_MAX : (int)v;

}

/* Compilers can emit warning about increased alignment requirements

 * when casting pointers. The impact is tricky: on machines where

 * alignment is just a performance issue (x86,x64,...) this might just

 * cause a performance penalty. On others, an address error can occur

 * and the process dies...

 *

 * Still, there are many cases where the pointer arithmetic and the

 * buffer alignment make sure this does not happen. OTOH, the compiler

 * doesn't know this and still emits warnings.

 *

 * The following cast macros are going through void pointers to tell

 * the compiler that there is no alignment requirement to watch.

 */

#define UA_PTR(ptype,pval) ((ptype *)(void*)(pval))

#define UAC_PTR(ptype,pval) ((const ptype *)(const void*)(pval))

#define UAV_PTR(ptype,pval) ((volatile ptype *)(volatile void*)(pval))

#endif