1 | /* |
1 | /* |
2 | * libecb - http://software.schmorp.de/pkg/libecb |
2 | * libecb - http://software.schmorp.de/pkg/libecb |
3 | * |
3 | * |
4 | * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de> |
4 | * Copyright (©) 2009-2015,2018-2020 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: |
… | |
… | |
40 | |
40 | |
41 | #ifndef ECB_H |
41 | #ifndef ECB_H |
42 | #define ECB_H |
42 | #define ECB_H |
43 | |
43 | |
44 | /* 16 bits major, 16 bits minor */ |
44 | /* 16 bits major, 16 bits minor */ |
45 | #define ECB_VERSION 0x00010005 |
45 | #define ECB_VERSION 0x00010008 |
46 | |
46 | |
47 | #ifdef _WIN32 |
47 | #include <string.h> /* for memcpy */ |
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48 | |
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49 | #if defined (_WIN32) && !defined (__MINGW32__) |
48 | typedef signed char int8_t; |
50 | typedef signed char int8_t; |
49 | typedef unsigned char uint8_t; |
51 | typedef unsigned char uint8_t; |
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52 | typedef signed char int_fast8_t; |
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53 | typedef unsigned char uint_fast8_t; |
50 | typedef signed short int16_t; |
54 | typedef signed short int16_t; |
51 | typedef unsigned short uint16_t; |
55 | typedef unsigned short uint16_t; |
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56 | typedef signed int int_fast16_t; |
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57 | typedef unsigned int uint_fast16_t; |
52 | typedef signed int int32_t; |
58 | typedef signed int int32_t; |
53 | typedef unsigned int uint32_t; |
59 | typedef unsigned int uint32_t; |
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60 | typedef signed int int_fast32_t; |
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61 | typedef unsigned int uint_fast32_t; |
54 | #if __GNUC__ |
62 | #if __GNUC__ |
55 | typedef signed long long int64_t; |
63 | typedef signed long long int64_t; |
56 | typedef unsigned long long uint64_t; |
64 | typedef unsigned long long uint64_t; |
57 | #else /* _MSC_VER || __BORLANDC__ */ |
65 | #else /* _MSC_VER || __BORLANDC__ */ |
58 | typedef signed __int64 int64_t; |
66 | typedef signed __int64 int64_t; |
59 | typedef unsigned __int64 uint64_t; |
67 | typedef unsigned __int64 uint64_t; |
60 | #endif |
68 | #endif |
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69 | typedef int64_t int_fast64_t; |
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70 | typedef uint64_t uint_fast64_t; |
61 | #ifdef _WIN64 |
71 | #ifdef _WIN64 |
62 | #define ECB_PTRSIZE 8 |
72 | #define ECB_PTRSIZE 8 |
63 | typedef uint64_t uintptr_t; |
73 | typedef uint64_t uintptr_t; |
64 | typedef int64_t intptr_t; |
74 | typedef int64_t intptr_t; |
65 | #else |
75 | #else |
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… | |
76 | #endif |
86 | #endif |
77 | #endif |
87 | #endif |
78 | |
88 | |
79 | #define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__) |
89 | #define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__) |
80 | #define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64) |
90 | #define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64) |
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91 | |
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92 | #ifndef ECB_OPTIMIZE_SIZE |
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93 | #if __OPTIMIZE_SIZE__ |
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94 | #define ECB_OPTIMIZE_SIZE 1 |
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95 | #else |
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96 | #define ECB_OPTIMIZE_SIZE 0 |
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97 | #endif |
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98 | #endif |
81 | |
99 | |
82 | /* work around x32 idiocy by defining proper macros */ |
100 | /* work around x32 idiocy by defining proper macros */ |
83 | #if ECB_GCC_AMD64 || ECB_MSVC_AMD64 |
101 | #if ECB_GCC_AMD64 || ECB_MSVC_AMD64 |
84 | #if _ILP32 |
102 | #if _ILP32 |
85 | #define ECB_AMD64_X32 1 |
103 | #define ECB_AMD64_X32 1 |
… | |
… | |
115 | #define ECB_CLANG_EXTENSION(x) 0 |
133 | #define ECB_CLANG_EXTENSION(x) 0 |
116 | #endif |
134 | #endif |
117 | |
135 | |
118 | #define ECB_CPP (__cplusplus+0) |
136 | #define ECB_CPP (__cplusplus+0) |
119 | #define ECB_CPP11 (__cplusplus >= 201103L) |
137 | #define ECB_CPP11 (__cplusplus >= 201103L) |
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138 | #define ECB_CPP14 (__cplusplus >= 201402L) |
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139 | #define ECB_CPP17 (__cplusplus >= 201703L) |
120 | |
140 | |
121 | #if ECB_CPP |
141 | #if ECB_CPP |
122 | #define ECB_C 0 |
142 | #define ECB_C 0 |
123 | #define ECB_STDC_VERSION 0 |
143 | #define ECB_STDC_VERSION 0 |
124 | #else |
144 | #else |
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… | |
126 | #define ECB_STDC_VERSION __STDC_VERSION__ |
146 | #define ECB_STDC_VERSION __STDC_VERSION__ |
127 | #endif |
147 | #endif |
128 | |
148 | |
129 | #define ECB_C99 (ECB_STDC_VERSION >= 199901L) |
149 | #define ECB_C99 (ECB_STDC_VERSION >= 199901L) |
130 | #define ECB_C11 (ECB_STDC_VERSION >= 201112L) |
150 | #define ECB_C11 (ECB_STDC_VERSION >= 201112L) |
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151 | #define ECB_C17 (ECB_STDC_VERSION >= 201710L) |
131 | |
152 | |
132 | #if ECB_CPP |
153 | #if ECB_CPP |
133 | #define ECB_EXTERN_C extern "C" |
154 | #define ECB_EXTERN_C extern "C" |
134 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
155 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
135 | #define ECB_EXTERN_C_END } |
156 | #define ECB_EXTERN_C_END } |
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161 | #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */ |
182 | #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */ |
162 | #endif |
183 | #endif |
163 | |
184 | |
164 | #ifndef ECB_MEMORY_FENCE |
185 | #ifndef ECB_MEMORY_FENCE |
165 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
186 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
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187 | #define ECB_MEMORY_FENCE_RELAXED __asm__ __volatile__ ("" : : : "memory") |
166 | #if __i386 || __i386__ |
188 | #if __i386 || __i386__ |
167 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
189 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
168 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
190 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
169 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") |
191 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") |
170 | #elif ECB_GCC_AMD64 |
192 | #elif ECB_GCC_AMD64 |
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220 | #if ECB_GCC_VERSION(4,7) |
242 | #if ECB_GCC_VERSION(4,7) |
221 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
243 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
222 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
244 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
223 | #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
245 | #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
224 | #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
246 | #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
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247 | #define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED) |
225 | |
248 | |
226 | #elif ECB_CLANG_EXTENSION(c_atomic) |
249 | #elif ECB_CLANG_EXTENSION(c_atomic) |
227 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
250 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
228 | #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
251 | #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
229 | #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
252 | #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
230 | #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
253 | #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
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254 | #define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED) |
231 | |
255 | |
232 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
256 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
233 | #define ECB_MEMORY_FENCE __sync_synchronize () |
257 | #define ECB_MEMORY_FENCE __sync_synchronize () |
234 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
258 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
235 | /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ |
259 | /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ |
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245 | #elif defined _WIN32 |
269 | #elif defined _WIN32 |
246 | #include <WinNT.h> |
270 | #include <WinNT.h> |
247 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
271 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
248 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
272 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
249 | #include <mbarrier.h> |
273 | #include <mbarrier.h> |
250 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
274 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
251 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () |
275 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier () |
252 | #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () |
276 | #define ECB_MEMORY_FENCE_RELEASE __machine_rel_barrier () |
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277 | #define ECB_MEMORY_FENCE_RELAXED __compiler_barrier () |
253 | #elif __xlC__ |
278 | #elif __xlC__ |
254 | #define ECB_MEMORY_FENCE __sync () |
279 | #define ECB_MEMORY_FENCE __sync () |
255 | #endif |
280 | #endif |
256 | #endif |
281 | #endif |
257 | |
282 | |
258 | #ifndef ECB_MEMORY_FENCE |
283 | #ifndef ECB_MEMORY_FENCE |
259 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
284 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
260 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
285 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
261 | /* not just C11 atomics and atomic accesses */ |
286 | /* not just C11 atomics and atomic accesses */ |
262 | #include <stdatomic.h> |
287 | #include <stdatomic.h> |
263 | /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */ |
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264 | /* any fence other than seq_cst, which isn't very efficient for us. */ |
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265 | /* Why that is, we don't know - either the C11 memory model is quite useless */ |
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266 | /* for most usages, or gcc and clang have a bug */ |
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267 | /* I *currently* lean towards the latter, and inefficiently implement */ |
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268 | /* all three of ecb's fences as a seq_cst fence */ |
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269 | /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */ |
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270 | /* for all __atomic_thread_fence's except seq_cst */ |
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271 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
288 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
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289 | #define ECB_MEMORY_FENCE_ACQUIRE atomic_thread_fence (memory_order_acquire) |
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290 | #define ECB_MEMORY_FENCE_RELEASE atomic_thread_fence (memory_order_release) |
272 | #endif |
291 | #endif |
273 | #endif |
292 | #endif |
274 | |
293 | |
275 | #ifndef ECB_MEMORY_FENCE |
294 | #ifndef ECB_MEMORY_FENCE |
276 | #if !ECB_AVOID_PTHREADS |
295 | #if !ECB_AVOID_PTHREADS |
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296 | |
315 | |
297 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
316 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
298 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
317 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
299 | #endif |
318 | #endif |
300 | |
319 | |
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320 | #if !defined ECB_MEMORY_FENCE_RELAXED && defined ECB_MEMORY_FENCE |
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321 | #define ECB_MEMORY_FENCE_RELAXED ECB_MEMORY_FENCE /* very heavy-handed */ |
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322 | #endif |
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323 | |
301 | /*****************************************************************************/ |
324 | /*****************************************************************************/ |
302 | |
325 | |
303 | #if ECB_CPP |
326 | #if ECB_CPP |
304 | #define ecb_inline static inline |
327 | #define ecb_inline static inline |
305 | #elif ECB_GCC_VERSION(2,5) |
328 | #elif ECB_GCC_VERSION(2,5) |
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586 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
609 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
587 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
610 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
588 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
611 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
589 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
612 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
590 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
613 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
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614 | |
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615 | #if ECB_CPP |
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616 | |
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617 | inline uint8_t ecb_ctz (uint8_t v) { return ecb_ctz32 (v); } |
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618 | inline uint16_t ecb_ctz (uint16_t v) { return ecb_ctz32 (v); } |
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619 | inline uint32_t ecb_ctz (uint32_t v) { return ecb_ctz32 (v); } |
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620 | inline uint64_t ecb_ctz (uint64_t v) { return ecb_ctz64 (v); } |
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621 | |
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622 | inline bool ecb_is_pot (uint8_t v) { return ecb_is_pot32 (v); } |
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623 | inline bool ecb_is_pot (uint16_t v) { return ecb_is_pot32 (v); } |
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624 | inline bool ecb_is_pot (uint32_t v) { return ecb_is_pot32 (v); } |
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625 | inline bool ecb_is_pot (uint64_t v) { return ecb_is_pot64 (v); } |
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626 | |
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627 | inline int ecb_ld (uint8_t v) { return ecb_ld32 (v); } |
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628 | inline int ecb_ld (uint16_t v) { return ecb_ld32 (v); } |
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629 | inline int ecb_ld (uint32_t v) { return ecb_ld32 (v); } |
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630 | inline int ecb_ld (uint64_t v) { return ecb_ld64 (v); } |
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631 | |
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632 | inline int ecb_popcount (uint8_t v) { return ecb_popcount32 (v); } |
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633 | inline int ecb_popcount (uint16_t v) { return ecb_popcount32 (v); } |
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634 | inline int ecb_popcount (uint32_t v) { return ecb_popcount32 (v); } |
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635 | inline int ecb_popcount (uint64_t v) { return ecb_popcount64 (v); } |
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636 | |
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637 | inline uint8_t ecb_bitrev (uint8_t v) { return ecb_bitrev8 (v); } |
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638 | inline uint16_t ecb_bitrev (uint16_t v) { return ecb_bitrev16 (v); } |
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639 | inline uint32_t ecb_bitrev (uint32_t v) { return ecb_bitrev32 (v); } |
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640 | |
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641 | inline uint8_t ecb_rotl (uint8_t v, unsigned int count) { return ecb_rotl8 (v, count); } |
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642 | inline uint16_t ecb_rotl (uint16_t v, unsigned int count) { return ecb_rotl16 (v, count); } |
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643 | inline uint32_t ecb_rotl (uint32_t v, unsigned int count) { return ecb_rotl32 (v, count); } |
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644 | inline uint64_t ecb_rotl (uint64_t v, unsigned int count) { return ecb_rotl64 (v, count); } |
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645 | |
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646 | inline uint8_t ecb_rotr (uint8_t v, unsigned int count) { return ecb_rotr8 (v, count); } |
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647 | inline uint16_t ecb_rotr (uint16_t v, unsigned int count) { return ecb_rotr16 (v, count); } |
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648 | inline uint32_t ecb_rotr (uint32_t v, unsigned int count) { return ecb_rotr32 (v, count); } |
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649 | inline uint64_t ecb_rotr (uint64_t v, unsigned int count) { return ecb_rotr64 (v, count); } |
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650 | |
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651 | #endif |
591 | |
652 | |
592 | #if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64)) |
653 | #if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64)) |
593 | #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16) |
654 | #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16) |
594 | #define ecb_bswap16(x) __builtin_bswap16 (x) |
655 | #define ecb_bswap16(x) __builtin_bswap16 (x) |
595 | #else |
656 | #else |
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667 | ecb_inline ecb_const ecb_bool ecb_big_endian (void); |
728 | ecb_inline ecb_const ecb_bool ecb_big_endian (void); |
668 | ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; } |
729 | ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; } |
669 | ecb_inline ecb_const ecb_bool ecb_little_endian (void); |
730 | ecb_inline ecb_const ecb_bool ecb_little_endian (void); |
670 | ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; } |
731 | ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; } |
671 | |
732 | |
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733 | /*****************************************************************************/ |
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734 | /* unaligned load/store */ |
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735 | |
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736 | ecb_inline uint_fast16_t ecb_be_u16_to_host (uint_fast16_t v) { return ecb_little_endian () ? ecb_bswap16 (v) : v; } |
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737 | ecb_inline uint_fast32_t ecb_be_u32_to_host (uint_fast32_t v) { return ecb_little_endian () ? ecb_bswap32 (v) : v; } |
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738 | ecb_inline uint_fast64_t ecb_be_u64_to_host (uint_fast64_t v) { return ecb_little_endian () ? ecb_bswap64 (v) : v; } |
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739 | |
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740 | ecb_inline uint_fast16_t ecb_le_u16_to_host (uint_fast16_t v) { return ecb_big_endian () ? ecb_bswap16 (v) : v; } |
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741 | ecb_inline uint_fast32_t ecb_le_u32_to_host (uint_fast32_t v) { return ecb_big_endian () ? ecb_bswap32 (v) : v; } |
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742 | ecb_inline uint_fast64_t ecb_le_u64_to_host (uint_fast64_t v) { return ecb_big_endian () ? ecb_bswap64 (v) : v; } |
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743 | |
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744 | ecb_inline uint_fast16_t ecb_peek_u16_u (const void *ptr) { uint16_t v; memcpy (&v, ptr, sizeof (v)); return v; } |
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745 | ecb_inline uint_fast32_t ecb_peek_u32_u (const void *ptr) { uint32_t v; memcpy (&v, ptr, sizeof (v)); return v; } |
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746 | ecb_inline uint_fast64_t ecb_peek_u64_u (const void *ptr) { uint64_t v; memcpy (&v, ptr, sizeof (v)); return v; } |
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747 | |
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748 | ecb_inline uint_fast16_t ecb_peek_be_u16_u (const void *ptr) { return ecb_be_u16_to_host (ecb_peek_u16_u (ptr)); } |
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749 | ecb_inline uint_fast32_t ecb_peek_be_u32_u (const void *ptr) { return ecb_be_u32_to_host (ecb_peek_u32_u (ptr)); } |
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750 | ecb_inline uint_fast64_t ecb_peek_be_u64_u (const void *ptr) { return ecb_be_u64_to_host (ecb_peek_u64_u (ptr)); } |
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751 | |
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752 | ecb_inline uint_fast16_t ecb_peek_le_u16_u (const void *ptr) { return ecb_le_u16_to_host (ecb_peek_u16_u (ptr)); } |
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753 | ecb_inline uint_fast32_t ecb_peek_le_u32_u (const void *ptr) { return ecb_le_u32_to_host (ecb_peek_u32_u (ptr)); } |
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754 | ecb_inline uint_fast64_t ecb_peek_le_u64_u (const void *ptr) { return ecb_le_u64_to_host (ecb_peek_u64_u (ptr)); } |
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755 | |
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756 | ecb_inline uint_fast16_t ecb_host_to_be_u16 (uint_fast16_t v) { return ecb_little_endian () ? ecb_bswap16 (v) : v; } |
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757 | ecb_inline uint_fast32_t ecb_host_to_be_u32 (uint_fast32_t v) { return ecb_little_endian () ? ecb_bswap32 (v) : v; } |
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758 | ecb_inline uint_fast64_t ecb_host_to_be_u64 (uint_fast64_t v) { return ecb_little_endian () ? ecb_bswap64 (v) : v; } |
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759 | |
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760 | ecb_inline uint_fast16_t ecb_host_to_le_u16 (uint_fast16_t v) { return ecb_big_endian () ? ecb_bswap16 (v) : v; } |
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761 | ecb_inline uint_fast32_t ecb_host_to_le_u32 (uint_fast32_t v) { return ecb_big_endian () ? ecb_bswap32 (v) : v; } |
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762 | ecb_inline uint_fast64_t ecb_host_to_le_u64 (uint_fast64_t v) { return ecb_big_endian () ? ecb_bswap64 (v) : v; } |
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763 | |
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764 | ecb_inline void ecb_poke_u16_u (void *ptr, uint16_t v) { memcpy (ptr, &v, sizeof (v)); } |
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765 | ecb_inline void ecb_poke_u32_u (void *ptr, uint32_t v) { memcpy (ptr, &v, sizeof (v)); } |
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766 | ecb_inline void ecb_poke_u64_u (void *ptr, uint64_t v) { memcpy (ptr, &v, sizeof (v)); } |
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767 | |
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768 | ecb_inline void ecb_poke_be_u16_u (void *ptr, uint_fast16_t v) { ecb_poke_u16_u (ptr, ecb_host_to_be_u16 (v)); } |
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769 | ecb_inline void ecb_poke_be_u32_u (void *ptr, uint_fast32_t v) { ecb_poke_u32_u (ptr, ecb_host_to_be_u32 (v)); } |
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770 | ecb_inline void ecb_poke_be_u64_u (void *ptr, uint_fast64_t v) { ecb_poke_u64_u (ptr, ecb_host_to_be_u64 (v)); } |
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771 | |
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772 | ecb_inline void ecb_poke_le_u16_u (void *ptr, uint_fast16_t v) { ecb_poke_u16_u (ptr, ecb_host_to_le_u16 (v)); } |
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773 | ecb_inline void ecb_poke_le_u32_u (void *ptr, uint_fast32_t v) { ecb_poke_u32_u (ptr, ecb_host_to_le_u32 (v)); } |
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774 | ecb_inline void ecb_poke_le_u64_u (void *ptr, uint_fast64_t v) { ecb_poke_u64_u (ptr, ecb_host_to_le_u64 (v)); } |
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775 | |
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776 | #if ECB_CPP |
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777 | |
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778 | inline uint8_t ecb_bswap (uint8_t v) { return v; } |
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779 | inline uint16_t ecb_bswap (uint16_t v) { return ecb_bswap16 (v); } |
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780 | inline uint32_t ecb_bswap (uint32_t v) { return ecb_bswap32 (v); } |
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781 | inline uint64_t ecb_bswap (uint64_t v) { return ecb_bswap64 (v); } |
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782 | |
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783 | template<typename T> inline T ecb_be_to_host (T v) { return ecb_little_endian () ? ecb_bswap (v) : v; } |
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784 | template<typename T> inline T ecb_le_to_host (T v) { return ecb_big_endian () ? ecb_bswap (v) : v; } |
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785 | template<typename T> inline T ecb_peek (const void *ptr) { return *(const T *)ptr; } |
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786 | template<typename T> inline T ecb_peek_be (const void *ptr) { return ecb_be_to_host (ecb_peek <T> (ptr)); } |
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787 | template<typename T> inline T ecb_peek_le (const void *ptr) { return ecb_le_to_host (ecb_peek <T> (ptr)); } |
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788 | template<typename T> inline T ecb_peek_u (const void *ptr) { T v; memcpy (&v, ptr, sizeof (v)); return v; } |
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789 | template<typename T> inline T ecb_peek_be_u (const void *ptr) { return ecb_be_to_host (ecb_peek_u<T> (ptr)); } |
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790 | template<typename T> inline T ecb_peek_le_u (const void *ptr) { return ecb_le_to_host (ecb_peek_u<T> (ptr)); } |
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791 | |
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792 | template<typename T> inline T ecb_host_to_be (T v) { return ecb_little_endian () ? ecb_bswap (v) : v; } |
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793 | template<typename T> inline T ecb_host_to_le (T v) { return ecb_big_endian () ? ecb_bswap (v) : v; } |
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794 | template<typename T> inline void ecb_poke (void *ptr, T v) { *(T *)ptr = v; } |
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795 | template<typename T> inline void ecb_poke_be (void *ptr, T v) { return ecb_poke <T> (ptr, ecb_host_to_be (v)); } |
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796 | template<typename T> inline void ecb_poke_le (void *ptr, T v) { return ecb_poke <T> (ptr, ecb_host_to_le (v)); } |
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797 | template<typename T> inline void ecb_poke_u (void *ptr, T v) { memcpy (ptr, &v, sizeof (v)); } |
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798 | template<typename T> inline void ecb_poke_be_u (void *ptr, T v) { return ecb_poke_u<T> (ptr, ecb_host_to_be (v)); } |
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799 | template<typename T> inline void ecb_poke_le_u (void *ptr, T v) { return ecb_poke_u<T> (ptr, ecb_host_to_le (v)); } |
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800 | |
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801 | #endif |
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802 | |
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803 | /*****************************************************************************/ |
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804 | /* division */ |
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805 | |
672 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
806 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
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807 | /* C99 tightened the definition of %, so we can use a more efficient version */ |
673 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
808 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
674 | #else |
809 | #else |
675 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
810 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
676 | #endif |
811 | #endif |
677 | |
812 | |
… | |
… | |
688 | } |
823 | } |
689 | #else |
824 | #else |
690 | #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div)) |
825 | #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div)) |
691 | #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div)) |
826 | #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div)) |
692 | #endif |
827 | #endif |
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828 | |
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829 | /*****************************************************************************/ |
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830 | /* array length */ |
693 | |
831 | |
694 | #if ecb_cplusplus_does_not_suck |
832 | #if ecb_cplusplus_does_not_suck |
695 | /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ |
833 | /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ |
696 | template<typename T, int N> |
834 | template<typename T, int N> |
697 | static inline int ecb_array_length (const T (&arr)[N]) |
835 | static inline int ecb_array_length (const T (&arr)[N]) |
… | |
… | |
699 | return N; |
837 | return N; |
700 | } |
838 | } |
701 | #else |
839 | #else |
702 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
840 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
703 | #endif |
841 | #endif |
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842 | |
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843 | /*****************************************************************************/ |
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844 | /* IEEE 754-2008 half float conversions */ |
704 | |
845 | |
705 | ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x); |
846 | ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x); |
706 | ecb_function_ ecb_const uint32_t |
847 | ecb_function_ ecb_const uint32_t |
707 | ecb_binary16_to_binary32 (uint32_t x) |
848 | ecb_binary16_to_binary32 (uint32_t x) |
708 | { |
849 | { |
… | |
… | |
817 | || defined __sh__ \ |
958 | || defined __sh__ \ |
818 | || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \ |
959 | || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \ |
819 | || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ |
960 | || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ |
820 | || defined __aarch64__ |
961 | || defined __aarch64__ |
821 | #define ECB_STDFP 1 |
962 | #define ECB_STDFP 1 |
822 | #include <string.h> /* for memcpy */ |
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823 | #else |
963 | #else |
824 | #define ECB_STDFP 0 |
964 | #define ECB_STDFP 0 |
825 | #endif |
965 | #endif |
826 | |
966 | |
827 | #ifndef ECB_NO_LIBM |
967 | #ifndef ECB_NO_LIBM |