[ViewVC] Diff of: cvs/libeio/ecb.h

Comparing libeio/ecb.h (file contents):
Revision 1.2 by root, Fri Jun 17 18:55:42 2011 UTC vs.
Revision 1.12 by root, Mon May 28 17:00:19 2012 UTC

…		…
1	/*	1	/*
2	* libecb - http://software.schmorp.de/pkg/libecb	2	* libecb - http://software.schmorp.de/pkg/libecb
3	*	3	*
4	* Copyright (©) 2009-2011 Marc Alexander Lehmann <libecb@schmorp.de>	4	* Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de>
5	* Copyright (©) 2011 Emanuele Giaquinta	5	* Copyright (©) 2011 Emanuele Giaquinta
6	* All rights reserved.	6	* All rights reserved.
7	*	7	*
8	* Redistribution and use in source and binary forms, with or without modifica-	8	* Redistribution and use in source and binary forms, with or without modifica-
9	* tion, are permitted provided that the following conditions are met:	9	* tion, are permitted provided that the following conditions are met:
28	*/	28	*/
29		29
30	#ifndef ECB_H	30	#ifndef ECB_H
31	#define ECB_H	31	#define ECB_H
32		32
		33	/* 16 bits major, 16 bits minor */
		34	#define ECB_VERSION 0x00010001
		35
33	#ifdef _WIN32	36	#ifdef _WIN32
34	typedef signed char int8_t;	37	typedef signed char int8_t;
35	typedef unsigned char uint8_t;	38	typedef unsigned char uint8_t;
36	typedef signed short int16_t;	39	typedef signed short int16_t;
37	typedef unsigned short uint16_t;	40	typedef unsigned short uint16_t;
38	typedef signed int int32_t;	41	typedef signed int int32_t;
39	typedef unsigned int uint32_t;	42	typedef unsigned int uint32_t;
40	#if __GNUC__	43	#if __GNUC__
41	typedef signed long long int64_t;	44	typedef signed long long int64_t;
42	typedef unsigned long long uint64_t;	45	typedef unsigned long long uint64_t;
43	#else	46	#else /* _MSC_VER \|\| __BORLANDC__ */
44	typedef signed __int64 int64_t;	47	typedef signed __int64 int64_t;
45	typedef unsigned __int64 uint64_t;	48	typedef unsigned __int64 uint64_t;
46	#endif	49	#endif
		50	#ifdef _WIN64
		51	#define ECB_PTRSIZE 8
		52	typedef uint64_t uintptr_t;
		53	typedef int64_t intptr_t;
		54	#else
		55	#define ECB_PTRSIZE 4
		56	typedef uint32_t uintptr_t;
		57	typedef int32_t intptr_t;
		58	#endif
		59	typedef intptr_t ptrdiff_t;
47	#else	60	#else
48	#include <inttypes.h>	61	#include <inttypes.h>
		62	#if UINTMAX_MAX > 0xffffffffU
		63	#define ECB_PTRSIZE 8
		64	#else
		65	#define ECB_PTRSIZE 4
		66	#endif
49	#endif	67	#endif
50		68
51	/* many compilers define _GNUC_ to some versions but then only implement	69	/* many compilers define _GNUC_ to some versions but then only implement
52	* what their idiot authors think are the "more important" extensions,	70	* what their idiot authors think are the "more important" extensions,
53	* causing enourmous grief in return for some better fake benchmark numbers.	71	* causing enormous grief in return for some better fake benchmark numbers.
54	* or so.	72	* or so.
55	* we try to detect these and simply assume they are not gcc - if they have	73	* we try to detect these and simply assume they are not gcc - if they have
56	* an issue with that they should have done it right in the first place.	74	* an issue with that they should have done it right in the first place.
57	*/	75	*/
58	#ifndef ECB_GCC_VERSION	76	#ifndef ECB_GCC_VERSION
59	#if !defined(__GNUC_MINOR__) \|\| defined(__INTEL_COMPILER) \|\| defined(__SUNPRO_C) \|\| defined(__SUNPRO_CC) \|\| defined(__llvm__) \|\| defined(__clang__)	77	#if !defined __GNUC_MINOR__ \|\| defined __INTEL_COMPILER \|\| defined __SUNPRO_C \|\| defined __SUNPRO_CC \|\| defined __llvm__ \|\| defined __clang__
60	#define ECB_GCC_VERSION(major,minor) 0	78	#define ECB_GCC_VERSION(major,minor) 0
61	#else	79	#else
62	#define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) \|\| (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))	80	#define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) \|\| (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
63	#endif	81	#endif
64	#endif	82	#endif
		83
		84	/*****************************************************************************/
		85
		86	/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
		87	/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
		88
		89	#if ECB_NO_THREADS
		90	# define ECB_NO_SMP 1
		91	#endif
		92
		93	#if ECB_NO_THREADS \|\| ECB_NO_SMP
		94	#define ECB_MEMORY_FENCE do { } while (0)
		95	#endif
		96
		97	#ifndef ECB_MEMORY_FENCE
		98	#if ECB_GCC_VERSION(2,5) \|\| defined __INTEL_COMPILER \|\| (__llvm__ && __GNUC__) \|\| __SUNPRO_C >= 0x5110 \|\| __SUNPRO_CC >= 0x5110
		99	#if __i386 \|\| __i386__
		100	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
		101	#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */
		102	#define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */
		103	#elif __amd64 \|\| __amd64__ \|\| __x86_64 \|\| __x86_64__
		104	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
		105	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory")
		106	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */
		107	#elif __powerpc__ \|\| __ppc__ \|\| __powerpc64__ \|\| __ppc64__
		108	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
		109	#elif defined __ARM_ARCH_6__ \|\| defined __ARM_ARCH_6J__ \
		110	\|\| defined __ARM_ARCH_6K__ \|\| defined __ARM_ARCH_6ZK__
		111	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
		112	#elif defined __ARM_ARCH_7__ \|\| defined __ARM_ARCH_7A__ \
		113	\|\| defined __ARM_ARCH_7M__ \|\| defined __ARM_ARCH_7R__
		114	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
		115	#elif __sparc \|\| __sparc__
		116	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore \| #LoadLoad \| #StoreStore \| #StoreLoad \| " : : : "memory")
		117	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore \| #LoadLoad" : : : "memory")
		118	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore \| #StoreStore")
		119	#elif defined __s390__ \|\| defined __s390x__
		120	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
		121	#elif defined __mips__
		122	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
		123	#elif defined __alpha__
		124	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
		125	#endif
		126	#endif
		127	#endif
		128
		129	#ifndef ECB_MEMORY_FENCE
		130	#if ECB_GCC_VERSION(4,4) \|\| defined __INTEL_COMPILER \|\| defined __clang__
		131	#define ECB_MEMORY_FENCE __sync_synchronize ()
		132	/#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) /
		133	/#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) /
		134	#elif _MSC_VER >= 1400 /* VC++ 2005 */
		135	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
		136	#define ECB_MEMORY_FENCE _ReadWriteBarrier ()
		137	#define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
		138	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
		139	#elif defined _WIN32
		140	#include <WinNT.h>
		141	#define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
		142	#elif __SUNPRO_C >= 0x5110 \|\| __SUNPRO_CC >= 0x5110
		143	#include <mbarrier.h>
		144	#define ECB_MEMORY_FENCE __machine_rw_barrier ()
		145	#define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
		146	#define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
		147	#elif __xlC__
		148	#define ECB_MEMORY_FENCE __sync ()
		149	#endif
		150	#endif
		151
		152	#ifndef ECB_MEMORY_FENCE
		153	#if !ECB_AVOID_PTHREADS
		154	/*
		155	* if you get undefined symbol references to pthread_mutex_lock,
		156	* or failure to find pthread.h, then you should implement
		157	* the ECB_MEMORY_FENCE operations for your cpu/compiler
		158	* OR provide pthread.h and link against the posix thread library
		159	* of your system.
		160	*/
		161	#include <pthread.h>
		162	#define ECB_NEEDS_PTHREADS 1
		163	#define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
		164
		165	static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
		166	#define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
		167	#endif
		168	#endif
		169
		170	#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
		171	#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
		172	#endif
		173
		174	#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
		175	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
		176	#endif
		177
		178	/*****************************************************************************/
65		179
66	#define ECB_C99 (__STDC_VERSION__ >= 199901L)	180	#define ECB_C99 (__STDC_VERSION__ >= 199901L)
67		181
68	#if __cplusplus	182	#if __cplusplus
69	#define ecb_inline static inline	183	#define ecb_inline static inline
…		…
152	{	266	{
153	int r = 0;	267	int r = 0;
154		268
155	x &= ~x + 1; /* this isolates the lowest bit */	269	x &= ~x + 1; /* this isolates the lowest bit */
156		270
		271	#if ECB_branchless_on_i386
		272	r += !!(x & 0xaaaaaaaa) << 0;
		273	r += !!(x & 0xcccccccc) << 1;
		274	r += !!(x & 0xf0f0f0f0) << 2;
		275	r += !!(x & 0xff00ff00) << 3;
		276	r += !!(x & 0xffff0000) << 4;
		277	#else
157	if (x & 0xaaaaaaaa) r += 1;	278	if (x & 0xaaaaaaaa) r += 1;
158	if (x & 0xcccccccc) r += 2;	279	if (x & 0xcccccccc) r += 2;
159	if (x & 0xf0f0f0f0) r += 4;	280	if (x & 0xf0f0f0f0) r += 4;
160	if (x & 0xff00ff00) r += 8;	281	if (x & 0xff00ff00) r += 8;
161	if (x & 0xffff0000) r += 16;	282	if (x & 0xffff0000) r += 16;
		283	#endif
162		284
163	return r;	285	return r;
164	}	286	}
165		287
166	ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;	288	ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
167	ecb_function_ int	289	ecb_function_ int
168	ecb_ctz64 (uint64_t x)	290	ecb_ctz64 (uint64_t x)
169	{	291	{
170	int shift = x & 0xffffffffU ? 0 : 32;	292	int shift = x & 0xffffffffU ? 0 : 32;
171	return ecb_ctz (x >> shift) + shift;	293	return ecb_ctz32 (x >> shift) + shift;
172	}	294	}
173		295
174	ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;	296	ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
175	ecb_function_ int	297	ecb_function_ int
176	ecb_popcount32 (uint32_t x)	298	ecb_popcount32 (uint32_t x)
…		…
181	x *= 0x01010101;	303	x *= 0x01010101;
182		304
183	return x >> 24;	305	return x >> 24;
184	}	306	}
185		307
186	/* you have the choice beetween something with a table lookup, */
187	/* something using lots of bit arithmetic and a simple loop */
188	/* we went for the loop */
189	ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;	308	ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
190	ecb_function_ int ecb_ld32 (uint32_t x)	309	ecb_function_ int ecb_ld32 (uint32_t x)
191	{	310	{
192	int r = -1;	311	int r = 0;
193		312
194	do	313	if (x >> 16) { x >>= 16; r += 16; }
195	{	314	if (x >> 8) { x >>= 8; r += 8; }
196	x >>= 1;	315	if (x >> 4) { x >>= 4; r += 4; }
197	++r;	316	if (x >> 2) { x >>= 2; r += 2; }
198	}	317	if (x >> 1) { r += 1; }
199	while (x);
200		318
201	return r;	319	return r;
202	}	320	}
203		321
204	ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;	322	ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
205	ecb_function_ int ecb_ld64 (uint64_t x)	323	ecb_function_ int ecb_ld64 (uint64_t x)
206	{	324	{
207	int r = -1;	325	int r = 0;
208		326
209	do	327	if (x >> 32) { x >>= 32; r += 32; }
210	{
211	x >>= 1;
212	++r;
213	}
214	while (x);
215		328
		329	return r + ecb_ld32 (x);
		330	}
		331	#endif
		332
		333	ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;
		334	ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
		335	ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;
		336	ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
		337
		338	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
		339	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
		340	{
		341	return ( (x * 0x0802U & 0x22110U)
		342	\| (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
		343	}
		344
		345	ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
		346	ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
		347	{
		348	x = ((x >> 1) & 0x5555) \| ((x & 0x5555) << 1);
		349	x = ((x >> 2) & 0x3333) \| ((x & 0x3333) << 2);
		350	x = ((x >> 4) & 0x0f0f) \| ((x & 0x0f0f) << 4);
		351	x = ( x >> 8 ) \| ( x << 8);
		352
216	return r;	353	return x;
217	}	354	}
218	#endif	355
		356	ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
		357	ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
		358	{
		359	x = ((x >> 1) & 0x55555555) \| ((x & 0x55555555) << 1);
		360	x = ((x >> 2) & 0x33333333) \| ((x & 0x33333333) << 2);
		361	x = ((x >> 4) & 0x0f0f0f0f) \| ((x & 0x0f0f0f0f) << 4);
		362	x = ((x >> 8) & 0x00ff00ff) \| ((x & 0x00ff00ff) << 8);
		363	x = ( x >> 16 ) \| ( x << 16);
		364
		365	return x;
		366	}
219		367
220	/* popcount64 is only available on 64 bit cpus as gcc builtin */	368	/* popcount64 is only available on 64 bit cpus as gcc builtin */
221	/* so for this version we are lazy */	369	/* so for this version we are lazy */
222	ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;	370	ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
223	ecb_function_ int	371	ecb_function_ int
224	ecb_popcount64 (uint64_t x)	372	ecb_popcount64 (uint64_t x)
225	{	373	{
226	return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);	374	return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
227	}	375	}
228		376
		377	ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
		378	ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
		379	ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
		380	ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
		381	ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
		382	ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
		383	ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
		384	ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
		385
		386	ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) \| (x << count); }
		387	ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) \| (x >> count); }
		388	ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) \| (x << count); }
		389	ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) \| (x >> count); }
		390	ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) \| (x << count); }
		391	ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) \| (x >> count); }
		392	ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) \| (x << count); }
		393	ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) \| (x >> count); }
		394
229	#if ECB_GCC_VERSION(4,3)	395	#if ECB_GCC_VERSION(4,3)
230	#define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)	396	#define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
231	#define ecb_bswap32(x) __builtin_bswap32 (x)	397	#define ecb_bswap32(x) __builtin_bswap32 (x)
232	#define ecb_bswap64(x) __builtin_bswap64 (x)	398	#define ecb_bswap64(x) __builtin_bswap64 (x)
233	#else	399	#else
234	ecb_function_ uint32_t ecb_bswap16 (uint32_t x) ecb_const;	400	ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
235	ecb_function_ uint32_t	401	ecb_function_ uint16_t
236	ecb_bswap16 (uint32_t x)	402	ecb_bswap16 (uint16_t x)
237	{	403	{
238	return ((x >> 8) & 0xff)	404	return ecb_rotl16 (x, 8);
239	\| ((x << 8) & 0x00ff0000)
240	\| (x << 24);
241	}	405	}
242		406
243	ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;	407	ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
244	ecb_function_ uint32_t	408	ecb_function_ uint32_t
245	ecb_bswap32 (uint32_t x)	409	ecb_bswap32 (uint32_t x)
246	{	410	{
247	return (x >> 24)	411	return (((uint32_t)ecb_bswap16 (x)) << 16) \| ecb_bswap16 (x >> 16);
248	\| ((x >> 8) & 0x0000ff00)
249	\| ((x << 8) & 0x00ff0000)
250	\| (x << 24);
251	}	412	}
252		413
253	ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;	414	ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
254	ecb_function_ uint64_t	415	ecb_function_ uint64_t
255	ecb_bswap64 (uint64_t x)	416	ecb_bswap64 (uint64_t x)
256	{	417	{
257	return (((uint64_t)ecb_bswap32 (x)) << 32)	418	return (((uint64_t)ecb_bswap32 (x)) << 32) \| ecb_bswap32 (x >> 32);
258	\| ecb_bswap32 (x >> 32);
259	}	419	}
260	#endif	420	#endif
261		421
262	#if ECB_GCC_VERSION(4,5)	422	#if ECB_GCC_VERSION(4,5)
263	#define ecb_unreachable() __builtin_unreachable ()	423	#define ecb_unreachable() __builtin_unreachable ()
264	#else	424	#else
265	/* this seems to work fine, but gcc always emits a warning for it :/ */	425	/* this seems to work fine, but gcc always emits a warning for it :/ */
266	ecb_function_ void ecb_unreachable (void) ecb_noreturn;	426	ecb_inline void ecb_unreachable (void) ecb_noreturn;
267	ecb_function_ void ecb_unreachable (void) { }	427	ecb_inline void ecb_unreachable (void) { }
268	#endif	428	#endif
269		429
270	/* try to tell the compiler that some condition is definitely true */	430	/* try to tell the compiler that some condition is definitely true */
271	#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)	431	#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)
272		432
273	ecb_function_ unsigned char ecb_byteorder_helper (void) ecb_const;	433	ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
274	ecb_function_ unsigned char	434	ecb_inline unsigned char
275	ecb_byteorder_helper (void)	435	ecb_byteorder_helper (void)
276	{	436	{
277	const uint32_t u = 0x11223344;	437	const uint32_t u = 0x11223344;
278	return (unsigned char )&u;	438	return (unsigned char )&u;
279	}	439	}
280		440
281	ecb_function_ ecb_bool ecb_big_endian (void) ecb_const;	441	ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
282	ecb_function_ ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }	442	ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
283	ecb_function_ ecb_bool ecb_little_endian (void) ecb_const;	443	ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
284	ecb_function_ ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }	444	ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
285		445
286	#if ECB_GCC_VERSION(3,0) \|\| ECB_C99	446	#if ECB_GCC_VERSION(3,0) \|\| ECB_C99
287	#define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))	447	#define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
288	#else	448	#else
289	#define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))	449	#define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
		450	#endif
		451
		452	#if __cplusplus
		453	template<typename T>
		454	static inline T ecb_div_rd (T val, T div)
		455	{
		456	return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
		457	}
		458	template<typename T>
		459	static inline T ecb_div_ru (T val, T div)
		460	{
		461	return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
		462	}
		463	#else
		464	#define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
		465	#define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
290	#endif	466	#endif
291		467
292	#if ecb_cplusplus_does_not_suck	468	#if ecb_cplusplus_does_not_suck
293	/* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */	469	/* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
294	template<typename T, int N>	470	template<typename T, int N>
…		…
298	}	474	}
299	#else	475	#else
300	#define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))	476	#define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
301	#endif	477	#endif
302		478
303	ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
304	ecb_inline uint32_t
305	ecb_rotr32 (uint32_t x, unsigned int count)
306	{
307	return (x << (32 - count)) \| (x >> count);
308	}
309
310	ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
311	ecb_inline uint32_t
312	ecb_rotl32 (uint32_t x, unsigned int count)
313	{
314	return (x >> (32 - count)) \| (x << count);
315	}
316
317	ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
318	ecb_inline uint64_t
319	ecb_rotr64 (uint64_t x, unsigned int count)
320	{
321	return (x << (64 - count)) \| (x >> count);
322	}
323
324	ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
325	ecb_inline uint64_t
326	ecb_rotl64 (uint64_t x, unsigned int count)
327	{
328	return (x >> (64 - count)) \| (x << count);
329	}
330
331	#endif	479	#endif
332		480

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Comparing libeio/ecb.h (file contents): Revision 1.2 by root, Fri Jun 17 18:55:42 2011 UTC vs. Revision 1.12 by root, Mon May 28 17:00:19 2012 UTC

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Comparing libeio/ecb.h (file contents):
Revision 1.2 by root, Fri Jun 17 18:55:42 2011 UTC vs.
Revision 1.12 by root, Mon May 28 17:00:19 2012 UTC