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sizes.h
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sizes.h
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/*
* Very simple but very effective user-space memory tester.
* Originally by Simon Kirby <[email protected]> <[email protected]>
* Version 2 by Charles Cazabon <[email protected]>
* Version 3 not publicly released.
* Version 4 rewrite:
* Copyright (C) 2004-2012 Charles Cazabon <[email protected]>
* Licensed under the terms of the GNU General Public License version 2 (only).
* See the file COPYING for details.
*
* This file contains some macro definitions for handling 32/64 bit platforms.
*
*/
#include <limits.h>
#define rand32() ((unsigned int) rand() | ( (unsigned int) rand() << 16))
#if (ULONG_MAX == 4294967295UL)
#define rand_ul() rand32()
#define UL_ONEBITS 0xffffffff
#define UL_LEN 32
#define CHECKERBOARD1 0x55555555
#define CHECKERBOARD2 0xaaaaaaaa
#define UL_BYTE(x) ((x | x << 8 | x << 16 | x << 24))
#elif (ULONG_MAX == 18446744073709551615ULL)
#define rand64() (((ul) rand32()) << 32 | ((ul) rand32()))
#define rand_ul() rand64()
#define UL_ONEBITS 0xffffffffffffffffUL
#define UL_LEN 64
#define CHECKERBOARD1 0x5555555555555555
#define CHECKERBOARD2 0xaaaaaaaaaaaaaaaa
#define UL_BYTE(x) (((ul)x | (ul)x<<8 | (ul)x<<16 | (ul)x<<24 | (ul)x<<32 | (ul)x<<40 | (ul)x<<48 | (ul)x<<56))
#else
#error long on this platform is not 32 or 64 bits
#endif