ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/libecb/ecb.h
(Generate patch)

Comparing libecb/ecb.h (file contents):
Revision 1.128 by root, Thu Jan 9 05:16:12 2014 UTC vs.
Revision 1.164 by root, Mon Apr 20 20:06:30 2015 UTC

1/* 1/*
2 * libecb - http://software.schmorp.de/pkg/libecb 2 * libecb - http://software.schmorp.de/pkg/libecb
3 * 3 *
4 * Copyright (©) 2009-2013 Marc Alexander Lehmann <libecb@schmorp.de> 4 * Copyright (©) 2009-2015 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:
… …
23 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 23 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
24 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 24 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
25 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- 25 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
26 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 26 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
27 * OF THE POSSIBILITY OF SUCH DAMAGE. 27 * OF THE POSSIBILITY OF SUCH DAMAGE.
28 *
29 * Alternatively, the contents of this file may be used under the terms of
30 * the GNU General Public License ("GPL") version 2 or any later version,
31 * in which case the provisions of the GPL are applicable instead of
32 * the above. If you wish to allow the use of your version of this file
33 * only under the terms of the GPL and not to allow others to use your
34 * version of this file under the BSD license, indicate your decision
35 * by deleting the provisions above and replace them with the notice
36 * and other provisions required by the GPL. If you do not delete the
37 * provisions above, a recipient may use your version of this file under
38 * either the BSD or the GPL.
28 */ 39 */
29 40
30#ifndef ECB_H 41#ifndef ECB_H
31#define ECB_H 42#define ECB_H
32 43
33/* 16 bits major, 16 bits minor */ 44/* 16 bits major, 16 bits minor */
34#define ECB_VERSION 0x00010003 45#define ECB_VERSION 0x00010004
35 46
36#ifdef _WIN32 47#ifdef _WIN32
37 typedef signed char int8_t; 48 typedef signed char int8_t;
38 typedef unsigned char uint8_t; 49 typedef unsigned char uint8_t;
39 typedef signed short int16_t; 50 typedef signed short int16_t;
… …
63 #else 74 #else
64 #define ECB_PTRSIZE 4 75 #define ECB_PTRSIZE 4
65 #endif 76 #endif
66#endif 77#endif
67 78
79#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
80#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
81
68/* work around x32 idiocy by defining proper macros */ 82/* work around x32 idiocy by defining proper macros */
69#if __amd64 || __x86_64 || _M_AMD64 || _M_X64 83#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
70 #if _ILP32 84 #if _ILP32
71 #define ECB_AMD64_X32 1 85 #define ECB_AMD64_X32 1
72 #else 86 #else
73 #define ECB_AMD64 1 87 #define ECB_AMD64 1
74 #endif 88 #endif
… …
79 * causing enormous grief in return for some better fake benchmark numbers. 93 * causing enormous grief in return for some better fake benchmark numbers.
80 * or so. 94 * or so.
81 * we try to detect these and simply assume they are not gcc - if they have 95 * we try to detect these and simply assume they are not gcc - if they have
82 * an issue with that they should have done it right in the first place. 96 * an issue with that they should have done it right in the first place.
83 */ 97 */
84#ifndef ECB_GCC_VERSION
85 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ 98#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
86 #define ECB_GCC_VERSION(major,minor) 0 99 #define ECB_GCC_VERSION(major,minor) 0
87 #else 100#else
88 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 101 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
89 #endif 102#endif
103
104#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor)))
105
106#if __clang__ && defined __has_builtin
107 #define ECB_CLANG_BUILTIN(x) __has_builtin (x)
108#else
109 #define ECB_CLANG_BUILTIN(x) 0
110#endif
111
112#if __clang__ && defined __has_extension
113 #define ECB_CLANG_EXTENSION(x) __has_extension (x)
114#else
115 #define ECB_CLANG_EXTENSION(x) 0
90#endif 116#endif
91 117
92#define ECB_CPP (__cplusplus+0) 118#define ECB_CPP (__cplusplus+0)
93#define ECB_CPP11 (__cplusplus >= 201103L) 119#define ECB_CPP11 (__cplusplus >= 201103L)
94 120
… …
130 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 156 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
131 #if __i386 || __i386__ 157 #if __i386 || __i386__
132 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 158 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
133 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 159 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
134 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 160 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
135 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 161 #elif ECB_GCC_AMD64
136 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 162 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
137 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 163 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
138 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 164 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
139 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 165 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
140 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 166 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
… …
142 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 168 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
143 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 169 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
144 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ 170 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
145 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 171 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
146 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 172 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
173 #elif __aarch64__
174 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
147 #elif (__sparc || __sparc__) && !__sparcv8 175 #elif (__sparc || __sparc__) && !__sparcv8
148 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") 176 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
149 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 177 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
150 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 178 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
151 #elif defined __s390__ || defined __s390x__ 179 #elif defined __s390__ || defined __s390x__
… …
176 /* see comment below (stdatomic.h) about the C11 memory model. */ 204 /* see comment below (stdatomic.h) about the C11 memory model. */
177 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) 205 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
178 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) 206 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
179 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) 207 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
180 208
181 /* The __has_feature syntax from clang is so misdesigned that we cannot use it 209 #elif ECB_CLANG_EXTENSION(c_atomic)
182 * without risking compile time errors with other compilers. We *could*
183 * define our own ecb_clang_has_feature, but I just can't be bothered to work
184 * around this shit time and again.
185 * #elif defined __clang && __has_feature (cxx_atomic)
186 * // see comment below (stdatomic.h) about the C11 memory model. 210 /* see comment below (stdatomic.h) about the C11 memory model. */
187 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 211 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
188 * #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) 212 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
189 * #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) 213 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
190 */
191 214
192 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 215 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
193 #define ECB_MEMORY_FENCE __sync_synchronize () 216 #define ECB_MEMORY_FENCE __sync_synchronize ()
194 #elif _MSC_VER >= 1500 /* VC++ 2008 */ 217 #elif _MSC_VER >= 1500 /* VC++ 2008 */
195 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ 218 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
… …
258 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 281 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
259#endif 282#endif
260 283
261/*****************************************************************************/ 284/*****************************************************************************/
262 285
263#if __cplusplus 286#if ECB_CPP
264 #define ecb_inline static inline 287 #define ecb_inline static inline
265#elif ECB_GCC_VERSION(2,5) 288#elif ECB_GCC_VERSION(2,5)
266 #define ecb_inline static __inline__ 289 #define ecb_inline static __inline__
267#elif ECB_C99 290#elif ECB_C99
268 #define ecb_inline static inline 291 #define ecb_inline static inline
… …
282 305
283#define ECB_CONCAT_(a, b) a ## b 306#define ECB_CONCAT_(a, b) a ## b
284#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 307#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
285#define ECB_STRINGIFY_(a) # a 308#define ECB_STRINGIFY_(a) # a
286#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) 309#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
310#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
287 311
288#define ecb_function_ ecb_inline 312#define ecb_function_ ecb_inline
289 313
290#if ECB_GCC_VERSION(3,1) 314#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
291 #define ecb_attribute(attrlist) __attribute__(attrlist) 315 #define ecb_attribute(attrlist) __attribute__ (attrlist)
316#else
317 #define ecb_attribute(attrlist)
318#endif
319
320#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
292 #define ecb_is_constant(expr) __builtin_constant_p (expr) 321 #define ecb_is_constant(expr) __builtin_constant_p (expr)
293 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
294 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
295#else 322#else
296 #define ecb_attribute(attrlist)
297
298 /* possible C11 impl for integral types 323 /* possible C11 impl for integral types
299 typedef struct ecb_is_constant_struct ecb_is_constant_struct; 324 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
300 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ 325 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
301 326
302 #define ecb_is_constant(expr) 0 327 #define ecb_is_constant(expr) 0
328#endif
329
330#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
331 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
332#else
303 #define ecb_expect(expr,value) (expr) 333 #define ecb_expect(expr,value) (expr)
334#endif
335
336#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
337 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
338#else
304 #define ecb_prefetch(addr,rw,locality) 339 #define ecb_prefetch(addr,rw,locality)
305#endif 340#endif
306 341
307/* no emulation for ecb_decltype */ 342/* no emulation for ecb_decltype */
308#if ECB_GCC_VERSION(4,5) 343#if ECB_CPP11
344 // older implementations might have problems with decltype(x)::type, work around it
345 template<class T> struct ecb_decltype_t { typedef T type; };
309 #define ecb_decltype(x) __decltype(x) 346 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
310#elif ECB_GCC_VERSION(3,0) 347#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
311 #define ecb_decltype(x) __typeof(x) 348 #define ecb_decltype(x) __typeof__ (x)
312#endif 349#endif
313 350
351#if _MSC_VER >= 1300
352 #define ecb_deprecated __declspec (deprecated)
353#else
354 #define ecb_deprecated ecb_attribute ((__deprecated__))
355#endif
356
357#if _MSC_VER >= 1500
358 #define ecb_deprecated_message(msg) __declspec (deprecated (msg))
359#elif ECB_GCC_VERSION(4,5)
360 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
361#else
362 #define ecb_deprecated_message(msg) ecb_deprecated
363#endif
364
365#if _MSC_VER >= 1400
366 #define ecb_noinline __declspec (noinline)
367#else
314#define ecb_noinline ecb_attribute ((__noinline__)) 368 #define ecb_noinline ecb_attribute ((__noinline__))
369#endif
370
315#define ecb_unused ecb_attribute ((__unused__)) 371#define ecb_unused ecb_attribute ((__unused__))
316#define ecb_const ecb_attribute ((__const__)) 372#define ecb_const ecb_attribute ((__const__))
317#define ecb_pure ecb_attribute ((__pure__)) 373#define ecb_pure ecb_attribute ((__pure__))
318 374
319#if ECB_C11 375#if ECB_C11 || __IBMC_NORETURN
376 /* http://pic.dhe.ibm.com/infocenter/compbg/v121v141/topic/com.ibm.xlcpp121.bg.doc/language_ref/noreturn.html */
320 #define ecb_noreturn _Noreturn 377 #define ecb_noreturn _Noreturn
378#elif ECB_CPP11
379 #define ecb_noreturn [[noreturn]]
380#elif _MSC_VER >= 1200
381 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
382 #define ecb_noreturn __declspec (noreturn)
321#else 383#else
322 #define ecb_noreturn ecb_attribute ((__noreturn__)) 384 #define ecb_noreturn ecb_attribute ((__noreturn__))
323#endif 385#endif
324 386
325#if ECB_GCC_VERSION(4,3) 387#if ECB_GCC_VERSION(4,3)
… …
340/* for compatibility to the rest of the world */ 402/* for compatibility to the rest of the world */
341#define ecb_likely(expr) ecb_expect_true (expr) 403#define ecb_likely(expr) ecb_expect_true (expr)
342#define ecb_unlikely(expr) ecb_expect_false (expr) 404#define ecb_unlikely(expr) ecb_expect_false (expr)
343 405
344/* count trailing zero bits and count # of one bits */ 406/* count trailing zero bits and count # of one bits */
345#if ECB_GCC_VERSION(3,4) 407#if ECB_GCC_VERSION(3,4) \
408 || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
409 && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
410 && ECB_CLANG_BUILTIN(__builtin_popcount))
346 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ 411 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
347 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 412 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
348 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 413 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
349 #define ecb_ctz32(x) __builtin_ctz (x) 414 #define ecb_ctz32(x) __builtin_ctz (x)
350 #define ecb_ctz64(x) __builtin_ctzll (x) 415 #define ecb_ctz64(x) __builtin_ctzll (x)
351 #define ecb_popcount32(x) __builtin_popcount (x) 416 #define ecb_popcount32(x) __builtin_popcount (x)
352 /* no popcountll */ 417 /* no popcountll */
353#else 418#else
354 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 419 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
355 ecb_function_ int 420 ecb_function_ ecb_const int
356 ecb_ctz32 (uint32_t x) 421 ecb_ctz32 (uint32_t x)
357 { 422 {
358 int r = 0; 423 int r = 0;
359 424
360 x &= ~x + 1; /* this isolates the lowest bit */ 425 x &= ~x + 1; /* this isolates the lowest bit */
… …
374#endif 439#endif
375 440
376 return r; 441 return r;
377 } 442 }
378 443
379 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 444 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
380 ecb_function_ int 445 ecb_function_ ecb_const int
381 ecb_ctz64 (uint64_t x) 446 ecb_ctz64 (uint64_t x)
382 { 447 {
383 int shift = x & 0xffffffffU ? 0 : 32; 448 int shift = x & 0xffffffffU ? 0 : 32;
384 return ecb_ctz32 (x >> shift) + shift; 449 return ecb_ctz32 (x >> shift) + shift;
385 } 450 }
386 451
387 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 452 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
388 ecb_function_ int 453 ecb_function_ ecb_const int
389 ecb_popcount32 (uint32_t x) 454 ecb_popcount32 (uint32_t x)
390 { 455 {
391 x -= (x >> 1) & 0x55555555; 456 x -= (x >> 1) & 0x55555555;
392 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 457 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
393 x = ((x >> 4) + x) & 0x0f0f0f0f; 458 x = ((x >> 4) + x) & 0x0f0f0f0f;
394 x *= 0x01010101; 459 x *= 0x01010101;
395 460
396 return x >> 24; 461 return x >> 24;
397 } 462 }
398 463
399 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 464 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
400 ecb_function_ int ecb_ld32 (uint32_t x) 465 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
401 { 466 {
402 int r = 0; 467 int r = 0;
403 468
404 if (x >> 16) { x >>= 16; r += 16; } 469 if (x >> 16) { x >>= 16; r += 16; }
405 if (x >> 8) { x >>= 8; r += 8; } 470 if (x >> 8) { x >>= 8; r += 8; }
… …
408 if (x >> 1) { r += 1; } 473 if (x >> 1) { r += 1; }
409 474
410 return r; 475 return r;
411 } 476 }
412 477
413 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 478 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
414 ecb_function_ int ecb_ld64 (uint64_t x) 479 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
415 { 480 {
416 int r = 0; 481 int r = 0;
417 482
418 if (x >> 32) { x >>= 32; r += 32; } 483 if (x >> 32) { x >>= 32; r += 32; }
419 484
420 return r + ecb_ld32 (x); 485 return r + ecb_ld32 (x);
421 } 486 }
422#endif 487#endif
423 488
424ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; 489ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
425ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } 490ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
426ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; 491ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
427ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } 492ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
428 493
429ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 494ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
430ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 495ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
431{ 496{
432 return ( (x * 0x0802U & 0x22110U) 497 return ( (x * 0x0802U & 0x22110U)
433 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 498 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
434} 499}
435 500
436ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 501ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
437ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 502ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
438{ 503{
439 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 504 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
440 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 505 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
441 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 506 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
442 x = ( x >> 8 ) | ( x << 8); 507 x = ( x >> 8 ) | ( x << 8);
443 508
444 return x; 509 return x;
445} 510}
446 511
447ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 512ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
448ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 513ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
449{ 514{
450 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 515 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
451 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 516 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
452 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 517 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
453 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 518 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
… …
456 return x; 521 return x;
457} 522}
458 523
459/* popcount64 is only available on 64 bit cpus as gcc builtin */ 524/* popcount64 is only available on 64 bit cpus as gcc builtin */
460/* so for this version we are lazy */ 525/* so for this version we are lazy */
461ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 526ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
462ecb_function_ int 527ecb_function_ ecb_const int
463ecb_popcount64 (uint64_t x) 528ecb_popcount64 (uint64_t x)
464{ 529{
465 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 530 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
466} 531}
467 532
468ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; 533ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count);
469ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; 534ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count);
470ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; 535ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count);
471ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; 536ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count);
472ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; 537ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count);
473ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; 538ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count);
474ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; 539ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count);
475ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; 540ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
476 541
477ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } 542ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
478ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } 543ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
479ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } 544ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
480ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } 545ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
481ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } 546ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
482ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } 547ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
483ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } 548ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
484ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } 549ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
485 550
486#if ECB_GCC_VERSION(4,3) 551#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
552 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
553 #define ecb_bswap16(x) __builtin_bswap16 (x)
554 #else
487 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 555 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
556 #endif
488 #define ecb_bswap32(x) __builtin_bswap32 (x) 557 #define ecb_bswap32(x) __builtin_bswap32 (x)
489 #define ecb_bswap64(x) __builtin_bswap64 (x) 558 #define ecb_bswap64(x) __builtin_bswap64 (x)
559#elif _MSC_VER
560 #include <stdlib.h>
561 #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
562 #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
563 #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
490#else 564#else
491 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 565 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
492 ecb_function_ uint16_t 566 ecb_function_ ecb_const uint16_t
493 ecb_bswap16 (uint16_t x) 567 ecb_bswap16 (uint16_t x)
494 { 568 {
495 return ecb_rotl16 (x, 8); 569 return ecb_rotl16 (x, 8);
496 } 570 }
497 571
498 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 572 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
499 ecb_function_ uint32_t 573 ecb_function_ ecb_const uint32_t
500 ecb_bswap32 (uint32_t x) 574 ecb_bswap32 (uint32_t x)
501 { 575 {
502 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 576 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
503 } 577 }
504 578
505 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 579 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
506 ecb_function_ uint64_t 580 ecb_function_ ecb_const uint64_t
507 ecb_bswap64 (uint64_t x) 581 ecb_bswap64 (uint64_t x)
508 { 582 {
509 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 583 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
510 } 584 }
511#endif 585#endif
512 586
513#if ECB_GCC_VERSION(4,5) 587#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
514 #define ecb_unreachable() __builtin_unreachable () 588 #define ecb_unreachable() __builtin_unreachable ()
515#else 589#else
516 /* this seems to work fine, but gcc always emits a warning for it :/ */ 590 /* this seems to work fine, but gcc always emits a warning for it :/ */
517 ecb_inline void ecb_unreachable (void) ecb_noreturn; 591 ecb_inline ecb_noreturn void ecb_unreachable (void);
518 ecb_inline void ecb_unreachable (void) { } 592 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
519#endif 593#endif
520 594
521/* try to tell the compiler that some condition is definitely true */ 595/* try to tell the compiler that some condition is definitely true */
522#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 596#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
523 597
524ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 598ecb_inline ecb_const unsigned char ecb_byteorder_helper (void);
525ecb_inline unsigned char 599ecb_inline ecb_const unsigned char
526ecb_byteorder_helper (void) 600ecb_byteorder_helper (void)
527{ 601{
528 /* the union code still generates code under pressure in gcc, */ 602 /* the union code still generates code under pressure in gcc, */
529 /* but less than using pointers, and always seems to */ 603 /* but less than using pointers, and always seems to */
530 /* successfully return a constant. */ 604 /* successfully return a constant. */
531 /* the reason why we have this horrible preprocessor mess */ 605 /* the reason why we have this horrible preprocessor mess */
532 /* is to avoid it in all cases, at least on common architectures */ 606 /* is to avoid it in all cases, at least on common architectures */
533 /* or when using a recent enough gcc version (>= 4.6) */ 607 /* or when using a recent enough gcc version (>= 4.6) */
534#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64 608#if ((__i386 || __i386__) && !__VOS__) || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64
535 return 0x44; 609 return 0x44;
536#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ 610#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
537 return 0x44; 611 return 0x44;
538#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 612#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
539 return 0x11; 613 return 0x11;
… …
545 } u = { 0x11223344 }; 619 } u = { 0x11223344 };
546 return u.c; 620 return u.c;
547#endif 621#endif
548} 622}
549 623
550ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 624ecb_inline ecb_const ecb_bool ecb_big_endian (void);
551ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 625ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
552ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 626ecb_inline ecb_const ecb_bool ecb_little_endian (void);
553ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 627ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
554 628
555#if ECB_GCC_VERSION(3,0) || ECB_C99 629#if ECB_GCC_VERSION(3,0) || ECB_C99
556 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 630 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
557#else 631#else
558 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 632 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
559#endif 633#endif
560 634
561#if __cplusplus 635#if ECB_CPP
562 template<typename T> 636 template<typename T>
563 static inline T ecb_div_rd (T val, T div) 637 static inline T ecb_div_rd (T val, T div)
564 { 638 {
565 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 639 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
566 } 640 }
… …
590 664
591/* basically, everything uses "ieee pure-endian" floating point numbers */ 665/* basically, everything uses "ieee pure-endian" floating point numbers */
592/* the only noteworthy exception is ancient armle, which uses order 43218765 */ 666/* the only noteworthy exception is ancient armle, which uses order 43218765 */
593#if 0 \ 667#if 0 \
594 || __i386 || __i386__ \ 668 || __i386 || __i386__ \
595 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ 669 || ECB_GCC_AMD64 \
596 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ 670 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
597 || defined __arm__ && defined __ARM_EABI__ \
598 || defined __s390__ || defined __s390x__ \ 671 || defined __s390__ || defined __s390x__ \
599 || defined __mips__ \ 672 || defined __mips__ \
600 || defined __alpha__ \ 673 || defined __alpha__ \
601 || defined __hppa__ \ 674 || defined __hppa__ \
602 || defined __ia64__ \ 675 || defined __ia64__ \
603 || defined __m68k__ \ 676 || defined __m68k__ \
604 || defined __m88k__ \ 677 || defined __m88k__ \
605 || defined __sh__ \ 678 || defined __sh__ \
606 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 679 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
680 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
681 || defined __aarch64__
607 #define ECB_STDFP 1 682 #define ECB_STDFP 1
608 #include <string.h> /* for memcpy */ 683 #include <string.h> /* for memcpy */
609#else 684#else
610 #define ECB_STDFP 0 685 #define ECB_STDFP 0
611#endif 686#endif
… …
625 #define ECB_NAN NAN 700 #define ECB_NAN NAN
626 #else 701 #else
627 #define ECB_NAN ECB_INFINITY 702 #define ECB_NAN ECB_INFINITY
628 #endif 703 #endif
629 704
705 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
706 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
707 #define ecb_frexpf(x,e) frexpf ((x), (e))
708 #else
709 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
710 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
711 #endif
712
630 /* converts an ieee half/binary16 to a float */ 713 /* converts an ieee half/binary16 to a float */
631 ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const; 714 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
632 ecb_function_ float 715 ecb_function_ ecb_const float
633 ecb_binary16_to_float (uint16_t x) 716 ecb_binary16_to_float (uint16_t x)
634 { 717 {
635 int e = (x >> 10) & 0x1f; 718 int e = (x >> 10) & 0x1f;
636 int m = x & 0x3ff; 719 int m = x & 0x3ff;
637 float r; 720 float r;
638 721
639 if (!e ) r = ldexpf (m , -24); 722 if (!e ) r = ecb_ldexpf (m , -24);
640 else if (e != 31) r = ldexpf (m + 0x400, e - 25); 723 else if (e != 31) r = ecb_ldexpf (m + 0x400, e - 25);
641 else if (m ) r = ECB_NAN; 724 else if (m ) r = ECB_NAN;
642 else r = ECB_INFINITY; 725 else r = ECB_INFINITY;
643 726
644 return x & 0x8000 ? -r : r; 727 return x & 0x8000 ? -r : r;
645 } 728 }
646 729
647 /* convert a float to ieee single/binary32 */ 730 /* convert a float to ieee single/binary32 */
648 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; 731 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
649 ecb_function_ uint32_t 732 ecb_function_ ecb_const uint32_t
650 ecb_float_to_binary32 (float x) 733 ecb_float_to_binary32 (float x)
651 { 734 {
652 uint32_t r; 735 uint32_t r;
653 736
654 #if ECB_STDFP 737 #if ECB_STDFP
… …
661 if (x == 0e0f ) return 0x00000000U; 744 if (x == 0e0f ) return 0x00000000U;
662 if (x > +3.40282346638528860e+38f) return 0x7f800000U; 745 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
663 if (x < -3.40282346638528860e+38f) return 0xff800000U; 746 if (x < -3.40282346638528860e+38f) return 0xff800000U;
664 if (x != x ) return 0x7fbfffffU; 747 if (x != x ) return 0x7fbfffffU;
665 748
666 m = frexpf (x, &e) * 0x1000000U; 749 m = ecb_frexpf (x, &e) * 0x1000000U;
667 750
668 r = m & 0x80000000U; 751 r = m & 0x80000000U;
669 752
670 if (r) 753 if (r)
671 m = -m; 754 m = -m;
… …
683 766
684 return r; 767 return r;
685 } 768 }
686 769
687 /* converts an ieee single/binary32 to a float */ 770 /* converts an ieee single/binary32 to a float */
688 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; 771 ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
689 ecb_function_ float 772 ecb_function_ ecb_const float
690 ecb_binary32_to_float (uint32_t x) 773 ecb_binary32_to_float (uint32_t x)
691 { 774 {
692 float r; 775 float r;
693 776
694 #if ECB_STDFP 777 #if ECB_STDFP
… …
704 x |= 0x800000U; 787 x |= 0x800000U;
705 else 788 else
706 e = 1; 789 e = 1;
707 790
708 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ 791 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
709 r = ldexpf (x * (0.5f / 0x800000U), e - 126); 792 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
710 793
711 r = neg ? -r : r; 794 r = neg ? -r : r;
712 #endif 795 #endif
713 796
714 return r; 797 return r;
715 } 798 }
716 799
717 /* convert a double to ieee double/binary64 */ 800 /* convert a double to ieee double/binary64 */
718 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; 801 ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
719 ecb_function_ uint64_t 802 ecb_function_ ecb_const uint64_t
720 ecb_double_to_binary64 (double x) 803 ecb_double_to_binary64 (double x)
721 { 804 {
722 uint64_t r; 805 uint64_t r;
723 806
724 #if ECB_STDFP 807 #if ECB_STDFP
… …
753 836
754 return r; 837 return r;
755 } 838 }
756 839
757 /* converts an ieee double/binary64 to a double */ 840 /* converts an ieee double/binary64 to a double */
758 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; 841 ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
759 ecb_function_ double 842 ecb_function_ ecb_const double
760 ecb_binary64_to_double (uint64_t x) 843 ecb_binary64_to_double (uint64_t x)
761 { 844 {
762 double r; 845 double r;
763 846
764 #if ECB_STDFP 847 #if ECB_STDFP

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines