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Comparing libecb/ecb.h (file contents):
Revision 1.46 by root, Fri Jun 17 15:17:26 2011 UTC vs.
Revision 1.84 by root, Thu Mar 29 22:29:57 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:
38 typedef signed int int32_t; 38 typedef signed int int32_t;
39 typedef unsigned int uint32_t; 39 typedef unsigned int uint32_t;
40 #if __GNUC__ 40 #if __GNUC__
41 typedef signed long long int64_t; 41 typedef signed long long int64_t;
42 typedef unsigned long long uint64_t; 42 typedef unsigned long long uint64_t;
43 #else 43 #else /* _MSC_VER || __BORLANDC__ */
44 typedef signed __int64 int64_t; 44 typedef signed __int64 int64_t;
45 typedef unsigned __int64 uint64_t; 45 typedef unsigned __int64 uint64_t;
46 #endif 46 #endif
47#else 47#else
48 #include <inttypes.h> 48 #include <inttypes.h>
49#endif 49#endif
50 50
51/* many compilers define _GNUC_ to some versions but then only implement 51/* many compilers define _GNUC_ to some versions but then only implement
52 * what their idiot authors think are the "more important" extensions, 52 * what their idiot authors think are the "more important" extensions,
53 * causing enourmous grief in return for some better fake benchmark numbers. 53 * causing enormous grief in return for some better fake benchmark numbers.
54 * or so. 54 * or so.
55 * we try to detect these and simply assume they are not gcc - if they have 55 * 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. 56 * an issue with that they should have done it right in the first place.
57 */ 57 */
58#ifndef ECB_GCC_VERSION 58#ifndef ECB_GCC_VERSION
59 #if defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__) 59 #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 60 #define ECB_GCC_VERSION(major,minor) 0
61 #else 61 #else
62 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 62 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
63 #endif 63 #endif
64#endif 64#endif
65
66/*****************************************************************************/
67
68/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
69/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
70
71#if ECB_NO_THREADS
72# define ECB_NO_SMP 1
73#endif
74
75#if ECB_NO_THREADS || ECB_NO_SMP
76 #define ECB_MEMORY_FENCE do { } while (0)
77#endif
78
79#ifndef ECB_MEMORY_FENCE
80 #if ECB_GCC_VERSION(2,5) || defined(__INTEL_COMPILER) || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
81 #if __i386 || __i386__
82 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
83 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */
84 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */
85 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
86 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
87 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory")
88 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */
89 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
90 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
91 #elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \
92 || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__)
93 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
94 #elif defined(__ARM_ARCH_7__ ) || defined(__ARM_ARCH_7A__ ) \
95 || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ )
96 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
97 #elif __sparc || __sparc__
98 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory")
99 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
100 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
101 #elif defined(__s390__) || defined(__s390x__)
102 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
103 #elif defined(__mips__)
104 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
105 #endif
106 #endif
107#endif
108
109#ifndef ECB_MEMORY_FENCE
110 #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) || defined(__clang__)
111 #define ECB_MEMORY_FENCE __sync_synchronize ()
112 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */
113 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */
114 #elif _MSC_VER >= 1400 /* VC++ 2005 */
115 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
116 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
117 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
118 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
119 #elif defined(_WIN32)
120 #include <WinNT.h>
121 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
122 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
123 #include <mbarrier.h>
124 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
125 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
126 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
127 #elif __xlC__
128 #define ECB_MEMORY_FENCE __sync ()
129 #endif
130#endif
131
132#ifndef ECB_MEMORY_FENCE
133 #if !ECB_AVOID_PTHREADS
134 /*
135 * if you get undefined symbol references to pthread_mutex_lock,
136 * or failure to find pthread.h, then you should implement
137 * the ECB_MEMORY_FENCE operations for your cpu/compiler
138 * OR provide pthread.h and link against the posix thread library
139 * of your system.
140 */
141 #include <pthread.h>
142 #define ECB_NEEDS_PTHREADS 1
143 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
144
145 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
146 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
147 #endif
148#endif
149
150#if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE)
151 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
152#endif
153
154#if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE)
155 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
156#endif
157
158/*****************************************************************************/
65 159
66#define ECB_C99 (__STDC_VERSION__ >= 199901L) 160#define ECB_C99 (__STDC_VERSION__ >= 199901L)
67 161
68#if __cplusplus 162#if __cplusplus
69 #define ecb_inline static inline 163 #define ecb_inline static inline
136#define ecb_likely(expr) ecb_expect_true (expr) 230#define ecb_likely(expr) ecb_expect_true (expr)
137#define ecb_unlikely(expr) ecb_expect_false (expr) 231#define ecb_unlikely(expr) ecb_expect_false (expr)
138 232
139/* count trailing zero bits and count # of one bits */ 233/* count trailing zero bits and count # of one bits */
140#if ECB_GCC_VERSION(3,4) 234#if ECB_GCC_VERSION(3,4)
235 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
236 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
237 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
141 #define ecb_ctz32(x) __builtin_ctz (x) 238 #define ecb_ctz32(x) __builtin_ctz (x)
239 #define ecb_ctz64(x) __builtin_ctzll (x)
142 #define ecb_popcount32(x) __builtin_popcount (x) 240 #define ecb_popcount32(x) __builtin_popcount (x)
241 /* no popcountll */
143#else 242#else
144 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 243 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
145 ecb_function_ int 244 ecb_function_ int
146 ecb_ctz32 (uint32_t x) 245 ecb_ctz32 (uint32_t x)
147 { 246 {
148 int r = 0; 247 int r = 0;
149 248
150 x &= (uint32_t)-(int32_t)x; /* this isolates the lowest bit */ 249 x &= ~x + 1; /* this isolates the lowest bit */
151 250
251#if ECB_branchless_on_i386
252 r += !!(x & 0xaaaaaaaa) << 0;
253 r += !!(x & 0xcccccccc) << 1;
254 r += !!(x & 0xf0f0f0f0) << 2;
255 r += !!(x & 0xff00ff00) << 3;
256 r += !!(x & 0xffff0000) << 4;
257#else
152 if (x & 0xaaaaaaaa) r += 1; 258 if (x & 0xaaaaaaaa) r += 1;
153 if (x & 0xcccccccc) r += 2; 259 if (x & 0xcccccccc) r += 2;
154 if (x & 0xf0f0f0f0) r += 4; 260 if (x & 0xf0f0f0f0) r += 4;
155 if (x & 0xff00ff00) r += 8; 261 if (x & 0xff00ff00) r += 8;
156 if (x & 0xffff0000) r += 16; 262 if (x & 0xffff0000) r += 16;
263#endif
157 264
158 return r; 265 return r;
266 }
267
268 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
269 ecb_function_ int
270 ecb_ctz64 (uint64_t x)
271 {
272 int shift = x & 0xffffffffU ? 0 : 32;
273 return ecb_ctz32 (x >> shift) + shift;
159 } 274 }
160 275
161 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 276 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
162 ecb_function_ int 277 ecb_function_ int
163 ecb_popcount32 (uint32_t x) 278 ecb_popcount32 (uint32_t x)
167 x = ((x >> 4) + x) & 0x0f0f0f0f; 282 x = ((x >> 4) + x) & 0x0f0f0f0f;
168 x *= 0x01010101; 283 x *= 0x01010101;
169 284
170 return x >> 24; 285 return x >> 24;
171 } 286 }
287
288 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
289 ecb_function_ int ecb_ld32 (uint32_t x)
290 {
291 int r = 0;
292
293 if (x >> 16) { x >>= 16; r += 16; }
294 if (x >> 8) { x >>= 8; r += 8; }
295 if (x >> 4) { x >>= 4; r += 4; }
296 if (x >> 2) { x >>= 2; r += 2; }
297 if (x >> 1) { r += 1; }
298
299 return r;
300 }
301
302 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
303 ecb_function_ int ecb_ld64 (uint64_t x)
304 {
305 int r = 0;
306
307 if (x >> 32) { x >>= 32; r += 32; }
308
309 return r + ecb_ld32 (x);
310 }
172#endif 311#endif
312
313ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
314ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
315{
316 return ( (x * 0x0802U & 0x22110U)
317 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
318}
319
320ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
321ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
322{
323 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
324 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
325 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
326 x = ( x >> 8 ) | ( x << 8);
327
328 return x;
329}
330
331ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
332ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
333{
334 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
335 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
336 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
337 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
338 x = ( x >> 16 ) | ( x << 16);
339
340 return x;
341}
342
343/* popcount64 is only available on 64 bit cpus as gcc builtin */
344/* so for this version we are lazy */
345ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
346ecb_function_ int
347ecb_popcount64 (uint64_t x)
348{
349 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
350}
351
352ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
353ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
354ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
355ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
356ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
357ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
358ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
359ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
360
361ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
362ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
363ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
364ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
365ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
366ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
367ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
368ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
173 369
174#if ECB_GCC_VERSION(4,3) 370#if ECB_GCC_VERSION(4,3)
175 #define ecb_bswap32(x) __builtin_bswap32 (x)
176 #define ecb_bswap16(x) (__builtin_bswap32(x) >> 16) 371 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
372 #define ecb_bswap32(x) __builtin_bswap32 (x)
373 #define ecb_bswap64(x) __builtin_bswap64 (x)
177#else 374#else
375 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
376 ecb_function_ uint16_t
377 ecb_bswap16 (uint16_t x)
378 {
379 return ecb_rotl16 (x, 8);
380 }
381
178 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 382 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
179 ecb_function_ uint32_t 383 ecb_function_ uint32_t
180 ecb_bswap32 (uint32_t x) 384 ecb_bswap32 (uint32_t x)
181 { 385 {
182 return (x >> 24) 386 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
183 | ((x >> 8) & 0x0000ff00)
184 | ((x << 8) & 0x00ff0000)
185 | (x << 24);
186 } 387 }
187 388
188 ecb_function_ uint32_t ecb_bswap16 (uint32_t x) ecb_const; 389 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
189 ecb_function_ uint32_t 390 ecb_function_ uint64_t
190 ecb_bswap16 (uint32_t x) 391 ecb_bswap64 (uint64_t x)
191 { 392 {
192 return ((x >> 8) & 0xff) 393 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
193 | ((x << 8) & 0x00ff0000)
194 | (x << 24);
195 } 394 }
196#endif 395#endif
197 396
198#if ECB_GCC_VERSION(4,5) 397#if ECB_GCC_VERSION(4,5)
199 #define ecb_unreachable() __builtin_unreachable () 398 #define ecb_unreachable() __builtin_unreachable ()
200#else 399#else
201 /* this seems to work fine, but gcc always emits a warning for it :/ */ 400 /* this seems to work fine, but gcc always emits a warning for it :/ */
202 ecb_function_ void ecb_unreachable (void) ecb_noreturn; 401 ecb_inline void ecb_unreachable (void) ecb_noreturn;
203 ecb_function_ void ecb_unreachable (void) { } 402 ecb_inline void ecb_unreachable (void) { }
204#endif 403#endif
205 404
206/* try to tell the compiler that some condition is definitely true */ 405/* try to tell the compiler that some condition is definitely true */
207#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) 406#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)
208 407
209ecb_function_ unsigned char ecb_byteorder_helper (void) ecb_const; 408ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
210ecb_function_ unsigned char 409ecb_inline unsigned char
211ecb_byteorder_helper (void) 410ecb_byteorder_helper (void)
212{ 411{
213 const uint32_t u = 0x11223344; 412 const uint32_t u = 0x11223344;
214 return *(unsigned char *)&u; 413 return *(unsigned char *)&u;
215} 414}
216 415
217ecb_function_ ecb_bool ecb_big_endian (void) ecb_const; 416ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
218ecb_function_ ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 417ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
219ecb_function_ ecb_bool ecb_little_endian (void) ecb_const; 418ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
220ecb_function_ ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 419ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
221 420
222#if ECB_GCC_VERSION(3,0) || ECB_C99 421#if ECB_GCC_VERSION(3,0) || ECB_C99
223 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 422 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
224#else 423#else
225 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 424 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
425#endif
426
427#if __cplusplus
428 template<typename T>
429 static inline T ecb_div_rd (T val, T div)
430 {
431 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
432 }
433 template<typename T>
434 static inline T ecb_div_ru (T val, T div)
435 {
436 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
437 }
438#else
439 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
440 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
226#endif 441#endif
227 442
228#if ecb_cplusplus_does_not_suck 443#if ecb_cplusplus_does_not_suck
229 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ 444 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
230 template<typename T, int N> 445 template<typename T, int N>
234 } 449 }
235#else 450#else
236 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 451 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
237#endif 452#endif
238 453
239ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
240ecb_inline uint32_t
241ecb_rotr32 (uint32_t x, unsigned int count)
242{
243 return (x << (32 - count)) | (x >> count);
244}
245
246ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
247ecb_inline uint32_t
248ecb_rotl32 (uint32_t x, unsigned int count)
249{
250 return (x >> (32 - count)) | (x << count);
251}
252
253#endif 454#endif
254 455

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