Botan  2.1.0
Crypto and TLS for C++11
loadstor.h
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1 /*
2 * Load/Store Operators
3 * (C) 1999-2007,2015 Jack Lloyd
4 * 2007 Yves Jerschow
5 *
6 * Botan is released under the Simplified BSD License (see license.txt)
7 */
8 
9 #ifndef BOTAN_LOAD_STORE_H__
10 #define BOTAN_LOAD_STORE_H__
11 
12 #include <botan/types.h>
13 #include <botan/bswap.h>
14 #include <botan/mem_ops.h>
15 #include <vector>
16 
17 #if BOTAN_TARGET_UNALIGNED_MEMORY_ACCESS_OK
18 
19 #if defined(BOTAN_TARGET_CPU_IS_BIG_ENDIAN)
20 
21 #define BOTAN_ENDIAN_N2B(x) (x)
22 #define BOTAN_ENDIAN_B2N(x) (x)
23 
24 #define BOTAN_ENDIAN_N2L(x) reverse_bytes(x)
25 #define BOTAN_ENDIAN_L2N(x) reverse_bytes(x)
26 
27 #elif defined(BOTAN_TARGET_CPU_IS_LITTLE_ENDIAN)
28 
29 #define BOTAN_ENDIAN_N2L(x) (x)
30 #define BOTAN_ENDIAN_L2N(x) (x)
31 
32 #define BOTAN_ENDIAN_N2B(x) reverse_bytes(x)
33 #define BOTAN_ENDIAN_B2N(x) reverse_bytes(x)
34 
35 #endif
36 
37 #endif
38 
39 namespace Botan {
40 
41 /**
42 * Byte extraction
43 * @param byte_num which byte to extract, 0 == highest byte
44 * @param input the value to extract from
45 * @return byte byte_num of input
46 */
47 template<typename T> inline uint8_t get_byte(size_t byte_num, T input)
48  {
49  return static_cast<uint8_t>(
50  input >> (((~byte_num)&(sizeof(T)-1)) << 3)
51  );
52  }
53 
54 /**
55 * Make a uint16_t from two bytes
56 * @param i0 the first byte
57 * @param i1 the second byte
58 * @return i0 || i1
59 */
60 inline uint16_t make_uint16(uint8_t i0, uint8_t i1)
61  {
62  return ((static_cast<uint16_t>(i0) << 8) | i1);
63  }
64 
65 /**
66 * Make a uint32_t from four bytes
67 * @param i0 the first byte
68 * @param i1 the second byte
69 * @param i2 the third byte
70 * @param i3 the fourth byte
71 * @return i0 || i1 || i2 || i3
72 */
73 inline uint32_t make_uint32(uint8_t i0, uint8_t i1, uint8_t i2, uint8_t i3)
74  {
75  return ((static_cast<uint32_t>(i0) << 24) |
76  (static_cast<uint32_t>(i1) << 16) |
77  (static_cast<uint32_t>(i2) << 8) |
78  (static_cast<uint32_t>(i3)));
79  }
80 
81 /**
82 * Make a uint32_t from eight bytes
83 * @param i0 the first byte
84 * @param i1 the second byte
85 * @param i2 the third byte
86 * @param i3 the fourth byte
87 * @param i4 the fifth byte
88 * @param i5 the sixth byte
89 * @param i6 the seventh byte
90 * @param i7 the eighth byte
91 * @return i0 || i1 || i2 || i3 || i4 || i5 || i6 || i7
92 */
93 inline uint64_t make_uint64(uint8_t i0, uint8_t i1, uint8_t i2, uint8_t i3,
94  uint8_t i4, uint8_t i5, uint8_t i6, uint8_t i7)
95  {
96  return ((static_cast<uint64_t>(i0) << 56) |
97  (static_cast<uint64_t>(i1) << 48) |
98  (static_cast<uint64_t>(i2) << 40) |
99  (static_cast<uint64_t>(i3) << 32) |
100  (static_cast<uint64_t>(i4) << 24) |
101  (static_cast<uint64_t>(i5) << 16) |
102  (static_cast<uint64_t>(i6) << 8) |
103  (static_cast<uint64_t>(i7)));
104  }
105 
106 /**
107 * Load a big-endian word
108 * @param in a pointer to some bytes
109 * @param off an offset into the array
110 * @return off'th T of in, as a big-endian value
111 */
112 template<typename T>
113 inline T load_be(const uint8_t in[], size_t off)
114  {
115  in += off * sizeof(T);
116  T out = 0;
117  for(size_t i = 0; i != sizeof(T); ++i)
118  out = (out << 8) | in[i];
119  return out;
120  }
121 
122 /**
123 * Load a little-endian word
124 * @param in a pointer to some bytes
125 * @param off an offset into the array
126 * @return off'th T of in, as a litte-endian value
127 */
128 template<typename T>
129 inline T load_le(const uint8_t in[], size_t off)
130  {
131  in += off * sizeof(T);
132  T out = 0;
133  for(size_t i = 0; i != sizeof(T); ++i)
134  out = (out << 8) | in[sizeof(T)-1-i];
135  return out;
136  }
137 
138 /**
139 * Load a big-endian uint16_t
140 * @param in a pointer to some bytes
141 * @param off an offset into the array
142 * @return off'th uint16_t of in, as a big-endian value
143 */
144 template<>
145 inline uint16_t load_be<uint16_t>(const uint8_t in[], size_t off)
146  {
147  in += off * sizeof(uint16_t);
148 
149 #if BOTAN_TARGET_UNALIGNED_MEMORY_ACCESS_OK
150  uint16_t x;
151  std::memcpy(&x, in, sizeof(x));
152  return BOTAN_ENDIAN_N2B(x);
153 #else
154  return make_uint16(in[0], in[1]);
155 #endif
156  }
157 
158 /**
159 * Load a little-endian uint16_t
160 * @param in a pointer to some bytes
161 * @param off an offset into the array
162 * @return off'th uint16_t of in, as a little-endian value
163 */
164 template<>
165 inline uint16_t load_le<uint16_t>(const uint8_t in[], size_t off)
166  {
167  in += off * sizeof(uint16_t);
168 
169 #if BOTAN_TARGET_UNALIGNED_MEMORY_ACCESS_OK
170  uint16_t x;
171  std::memcpy(&x, in, sizeof(x));
172  return BOTAN_ENDIAN_N2L(x);
173 #else
174  return make_uint16(in[1], in[0]);
175 #endif
176  }
177 
178 /**
179 * Load a big-endian uint32_t
180 * @param in a pointer to some bytes
181 * @param off an offset into the array
182 * @return off'th uint32_t of in, as a big-endian value
183 */
184 template<>
185 inline uint32_t load_be<uint32_t>(const uint8_t in[], size_t off)
186  {
187  in += off * sizeof(uint32_t);
188 #if BOTAN_TARGET_UNALIGNED_MEMORY_ACCESS_OK
189  uint32_t x;
190  std::memcpy(&x, in, sizeof(x));
191  return BOTAN_ENDIAN_N2B(x);
192 #else
193  return make_uint32(in[0], in[1], in[2], in[3]);
194 #endif
195  }
196 
197 /**
198 * Load a little-endian uint32_t
199 * @param in a pointer to some bytes
200 * @param off an offset into the array
201 * @return off'th uint32_t of in, as a little-endian value
202 */
203 template<>
204 inline uint32_t load_le<uint32_t>(const uint8_t in[], size_t off)
205  {
206  in += off * sizeof(uint32_t);
207 #if BOTAN_TARGET_UNALIGNED_MEMORY_ACCESS_OK
208  uint32_t x;
209  std::memcpy(&x, in, sizeof(x));
210  return BOTAN_ENDIAN_N2L(x);
211 #else
212  return make_uint32(in[3], in[2], in[1], in[0]);
213 #endif
214  }
215 
216 /**
217 * Load a big-endian uint64_t
218 * @param in a pointer to some bytes
219 * @param off an offset into the array
220 * @return off'th uint64_t of in, as a big-endian value
221 */
222 template<>
223 inline uint64_t load_be<uint64_t>(const uint8_t in[], size_t off)
224  {
225  in += off * sizeof(uint64_t);
226 #if BOTAN_TARGET_UNALIGNED_MEMORY_ACCESS_OK
227  uint64_t x;
228  std::memcpy(&x, in, sizeof(x));
229  return BOTAN_ENDIAN_N2B(x);
230 #else
231  return make_uint64(in[0], in[1], in[2], in[3],
232  in[4], in[5], in[6], in[7]);
233 #endif
234  }
235 
236 /**
237 * Load a little-endian uint64_t
238 * @param in a pointer to some bytes
239 * @param off an offset into the array
240 * @return off'th uint64_t of in, as a little-endian value
241 */
242 template<>
243 inline uint64_t load_le<uint64_t>(const uint8_t in[], size_t off)
244  {
245  in += off * sizeof(uint64_t);
246 #if BOTAN_TARGET_UNALIGNED_MEMORY_ACCESS_OK
247  uint64_t x;
248  std::memcpy(&x, in, sizeof(x));
249  return BOTAN_ENDIAN_N2L(x);
250 #else
251  return make_uint64(in[7], in[6], in[5], in[4],
252  in[3], in[2], in[1], in[0]);
253 #endif
254  }
255 
256 /**
257 * Load two little-endian words
258 * @param in a pointer to some bytes
259 * @param x0 where the first word will be written
260 * @param x1 where the second word will be written
261 */
262 template<typename T>
263 inline void load_le(const uint8_t in[], T& x0, T& x1)
264  {
265  x0 = load_le<T>(in, 0);
266  x1 = load_le<T>(in, 1);
267  }
268 
269 /**
270 * Load four little-endian words
271 * @param in a pointer to some bytes
272 * @param x0 where the first word will be written
273 * @param x1 where the second word will be written
274 * @param x2 where the third word will be written
275 * @param x3 where the fourth word will be written
276 */
277 template<typename T>
278 inline void load_le(const uint8_t in[],
279  T& x0, T& x1, T& x2, T& x3)
280  {
281  x0 = load_le<T>(in, 0);
282  x1 = load_le<T>(in, 1);
283  x2 = load_le<T>(in, 2);
284  x3 = load_le<T>(in, 3);
285  }
286 
287 /**
288 * Load eight little-endian words
289 * @param in a pointer to some bytes
290 * @param x0 where the first word will be written
291 * @param x1 where the second word will be written
292 * @param x2 where the third word will be written
293 * @param x3 where the fourth word will be written
294 * @param x4 where the fifth word will be written
295 * @param x5 where the sixth word will be written
296 * @param x6 where the seventh word will be written
297 * @param x7 where the eighth word will be written
298 */
299 template<typename T>
300 inline void load_le(const uint8_t in[],
301  T& x0, T& x1, T& x2, T& x3,
302  T& x4, T& x5, T& x6, T& x7)
303  {
304  x0 = load_le<T>(in, 0);
305  x1 = load_le<T>(in, 1);
306  x2 = load_le<T>(in, 2);
307  x3 = load_le<T>(in, 3);
308  x4 = load_le<T>(in, 4);
309  x5 = load_le<T>(in, 5);
310  x6 = load_le<T>(in, 6);
311  x7 = load_le<T>(in, 7);
312  }
313 
314 /**
315 * Load a variable number of little-endian words
316 * @param out the output array of words
317 * @param in the input array of bytes
318 * @param count how many words are in in
319 */
320 template<typename T>
321 inline void load_le(T out[],
322  const uint8_t in[],
323  size_t count)
324  {
325  if(count > 0)
326  {
327 #if defined(BOTAN_TARGET_CPU_IS_LITTLE_ENDIAN)
328  std::memcpy(out, in, sizeof(T)*count);
329 #elif defined(BOTAN_TARGET_CPU_IS_BIG_ENDIAN)
330  std::memcpy(out, in, sizeof(T)*count);
331  const size_t blocks = count - (count % 4);
332  const size_t left = count - blocks;
333 
334  for(size_t i = 0; i != blocks; i += 4)
335  bswap_4(out + i);
336 
337  for(size_t i = 0; i != left; ++i)
338  out[blocks+i] = reverse_bytes(out[blocks+i]);
339 #else
340  for(size_t i = 0; i != count; ++i)
341  out[i] = load_le<T>(in, i);
342 #endif
343  }
344  }
345 
346 /**
347 * Load two big-endian words
348 * @param in a pointer to some bytes
349 * @param x0 where the first word will be written
350 * @param x1 where the second word will be written
351 */
352 template<typename T>
353 inline void load_be(const uint8_t in[], T& x0, T& x1)
354  {
355  x0 = load_be<T>(in, 0);
356  x1 = load_be<T>(in, 1);
357  }
358 
359 /**
360 * Load four big-endian words
361 * @param in a pointer to some bytes
362 * @param x0 where the first word will be written
363 * @param x1 where the second word will be written
364 * @param x2 where the third word will be written
365 * @param x3 where the fourth word will be written
366 */
367 template<typename T>
368 inline void load_be(const uint8_t in[],
369  T& x0, T& x1, T& x2, T& x3)
370  {
371  x0 = load_be<T>(in, 0);
372  x1 = load_be<T>(in, 1);
373  x2 = load_be<T>(in, 2);
374  x3 = load_be<T>(in, 3);
375  }
376 
377 /**
378 * Load eight big-endian words
379 * @param in a pointer to some bytes
380 * @param x0 where the first word will be written
381 * @param x1 where the second word will be written
382 * @param x2 where the third word will be written
383 * @param x3 where the fourth word will be written
384 * @param x4 where the fifth word will be written
385 * @param x5 where the sixth word will be written
386 * @param x6 where the seventh word will be written
387 * @param x7 where the eighth word will be written
388 */
389 template<typename T>
390 inline void load_be(const uint8_t in[],
391  T& x0, T& x1, T& x2, T& x3,
392  T& x4, T& x5, T& x6, T& x7)
393  {
394  x0 = load_be<T>(in, 0);
395  x1 = load_be<T>(in, 1);
396  x2 = load_be<T>(in, 2);
397  x3 = load_be<T>(in, 3);
398  x4 = load_be<T>(in, 4);
399  x5 = load_be<T>(in, 5);
400  x6 = load_be<T>(in, 6);
401  x7 = load_be<T>(in, 7);
402  }
403 
404 /**
405 * Load a variable number of big-endian words
406 * @param out the output array of words
407 * @param in the input array of bytes
408 * @param count how many words are in in
409 */
410 template<typename T>
411 inline void load_be(T out[],
412  const uint8_t in[],
413  size_t count)
414  {
415  if(count > 0)
416  {
417 #if defined(BOTAN_TARGET_CPU_IS_BIG_ENDIAN)
418  std::memcpy(out, in, sizeof(T)*count);
419 #elif defined(BOTAN_TARGET_CPU_IS_LITTLE_ENDIAN)
420  std::memcpy(out, in, sizeof(T)*count);
421  const size_t blocks = count - (count % 4);
422  const size_t left = count - blocks;
423 
424  for(size_t i = 0; i != blocks; i += 4)
425  bswap_4(out + i);
426 
427  for(size_t i = 0; i != left; ++i)
428  out[blocks+i] = reverse_bytes(out[blocks+i]);
429 #else
430  for(size_t i = 0; i != count; ++i)
431  out[i] = load_be<T>(in, i);
432 #endif
433  }
434  }
435 
436 /**
437 * Store a big-endian uint16_t
438 * @param in the input uint16_t
439 * @param out the byte array to write to
440 */
441 inline void store_be(uint16_t in, uint8_t out[2])
442  {
443 #if BOTAN_TARGET_UNALIGNED_MEMORY_ACCESS_OK
444  uint16_t o = BOTAN_ENDIAN_N2B(in);
445  std::memcpy(out, &o, sizeof(o));
446 #else
447  out[0] = get_byte(0, in);
448  out[1] = get_byte(1, in);
449 #endif
450  }
451 
452 /**
453 * Store a little-endian uint16_t
454 * @param in the input uint16_t
455 * @param out the byte array to write to
456 */
457 inline void store_le(uint16_t in, uint8_t out[2])
458  {
459 #if BOTAN_TARGET_UNALIGNED_MEMORY_ACCESS_OK
460  uint16_t o = BOTAN_ENDIAN_N2L(in);
461  std::memcpy(out, &o, sizeof(o));
462 #else
463  out[0] = get_byte(1, in);
464  out[1] = get_byte(0, in);
465 #endif
466  }
467 
468 /**
469 * Store a big-endian uint32_t
470 * @param in the input uint32_t
471 * @param out the byte array to write to
472 */
473 inline void store_be(uint32_t in, uint8_t out[4])
474  {
475 #if BOTAN_TARGET_UNALIGNED_MEMORY_ACCESS_OK
476  uint32_t o = BOTAN_ENDIAN_B2N(in);
477  std::memcpy(out, &o, sizeof(o));
478 #else
479  out[0] = get_byte(0, in);
480  out[1] = get_byte(1, in);
481  out[2] = get_byte(2, in);
482  out[3] = get_byte(3, in);
483 #endif
484  }
485 
486 /**
487 * Store a little-endian uint32_t
488 * @param in the input uint32_t
489 * @param out the byte array to write to
490 */
491 inline void store_le(uint32_t in, uint8_t out[4])
492  {
493 #if BOTAN_TARGET_UNALIGNED_MEMORY_ACCESS_OK
494  uint32_t o = BOTAN_ENDIAN_L2N(in);
495  std::memcpy(out, &o, sizeof(o));
496 #else
497  out[0] = get_byte(3, in);
498  out[1] = get_byte(2, in);
499  out[2] = get_byte(1, in);
500  out[3] = get_byte(0, in);
501 #endif
502  }
503 
504 /**
505 * Store a big-endian uint64_t
506 * @param in the input uint64_t
507 * @param out the byte array to write to
508 */
509 inline void store_be(uint64_t in, uint8_t out[8])
510  {
511 #if BOTAN_TARGET_UNALIGNED_MEMORY_ACCESS_OK
512  uint64_t o = BOTAN_ENDIAN_B2N(in);
513  std::memcpy(out, &o, sizeof(o));
514 #else
515  out[0] = get_byte(0, in);
516  out[1] = get_byte(1, in);
517  out[2] = get_byte(2, in);
518  out[3] = get_byte(3, in);
519  out[4] = get_byte(4, in);
520  out[5] = get_byte(5, in);
521  out[6] = get_byte(6, in);
522  out[7] = get_byte(7, in);
523 #endif
524  }
525 
526 /**
527 * Store a little-endian uint64_t
528 * @param in the input uint64_t
529 * @param out the byte array to write to
530 */
531 inline void store_le(uint64_t in, uint8_t out[8])
532  {
533 #if BOTAN_TARGET_UNALIGNED_MEMORY_ACCESS_OK
534  uint64_t o = BOTAN_ENDIAN_L2N(in);
535  std::memcpy(out, &o, sizeof(o));
536 #else
537  out[0] = get_byte(7, in);
538  out[1] = get_byte(6, in);
539  out[2] = get_byte(5, in);
540  out[3] = get_byte(4, in);
541  out[4] = get_byte(3, in);
542  out[5] = get_byte(2, in);
543  out[6] = get_byte(1, in);
544  out[7] = get_byte(0, in);
545 #endif
546  }
547 
548 /**
549 * Store two little-endian words
550 * @param out the output byte array
551 * @param x0 the first word
552 * @param x1 the second word
553 */
554 template<typename T>
555 inline void store_le(uint8_t out[], T x0, T x1)
556  {
557  store_le(x0, out + (0 * sizeof(T)));
558  store_le(x1, out + (1 * sizeof(T)));
559  }
560 
561 /**
562 * Store two big-endian words
563 * @param out the output byte array
564 * @param x0 the first word
565 * @param x1 the second word
566 */
567 template<typename T>
568 inline void store_be(uint8_t out[], T x0, T x1)
569  {
570  store_be(x0, out + (0 * sizeof(T)));
571  store_be(x1, out + (1 * sizeof(T)));
572  }
573 
574 /**
575 * Store four little-endian words
576 * @param out the output byte array
577 * @param x0 the first word
578 * @param x1 the second word
579 * @param x2 the third word
580 * @param x3 the fourth word
581 */
582 template<typename T>
583 inline void store_le(uint8_t out[], T x0, T x1, T x2, T x3)
584  {
585  store_le(x0, out + (0 * sizeof(T)));
586  store_le(x1, out + (1 * sizeof(T)));
587  store_le(x2, out + (2 * sizeof(T)));
588  store_le(x3, out + (3 * sizeof(T)));
589  }
590 
591 /**
592 * Store four big-endian words
593 * @param out the output byte array
594 * @param x0 the first word
595 * @param x1 the second word
596 * @param x2 the third word
597 * @param x3 the fourth word
598 */
599 template<typename T>
600 inline void store_be(uint8_t out[], T x0, T x1, T x2, T x3)
601  {
602  store_be(x0, out + (0 * sizeof(T)));
603  store_be(x1, out + (1 * sizeof(T)));
604  store_be(x2, out + (2 * sizeof(T)));
605  store_be(x3, out + (3 * sizeof(T)));
606  }
607 
608 /**
609 * Store eight little-endian words
610 * @param out the output byte array
611 * @param x0 the first word
612 * @param x1 the second word
613 * @param x2 the third word
614 * @param x3 the fourth word
615 * @param x4 the fifth word
616 * @param x5 the sixth word
617 * @param x6 the seventh word
618 * @param x7 the eighth word
619 */
620 template<typename T>
621 inline void store_le(uint8_t out[], T x0, T x1, T x2, T x3,
622  T x4, T x5, T x6, T x7)
623  {
624  store_le(x0, out + (0 * sizeof(T)));
625  store_le(x1, out + (1 * sizeof(T)));
626  store_le(x2, out + (2 * sizeof(T)));
627  store_le(x3, out + (3 * sizeof(T)));
628  store_le(x4, out + (4 * sizeof(T)));
629  store_le(x5, out + (5 * sizeof(T)));
630  store_le(x6, out + (6 * sizeof(T)));
631  store_le(x7, out + (7 * sizeof(T)));
632  }
633 
634 /**
635 * Store eight big-endian words
636 * @param out the output byte array
637 * @param x0 the first word
638 * @param x1 the second word
639 * @param x2 the third word
640 * @param x3 the fourth word
641 * @param x4 the fifth word
642 * @param x5 the sixth word
643 * @param x6 the seventh word
644 * @param x7 the eighth word
645 */
646 template<typename T>
647 inline void store_be(uint8_t out[], T x0, T x1, T x2, T x3,
648  T x4, T x5, T x6, T x7)
649  {
650  store_be(x0, out + (0 * sizeof(T)));
651  store_be(x1, out + (1 * sizeof(T)));
652  store_be(x2, out + (2 * sizeof(T)));
653  store_be(x3, out + (3 * sizeof(T)));
654  store_be(x4, out + (4 * sizeof(T)));
655  store_be(x5, out + (5 * sizeof(T)));
656  store_be(x6, out + (6 * sizeof(T)));
657  store_be(x7, out + (7 * sizeof(T)));
658  }
659 
660 template<typename T>
661 void copy_out_be(uint8_t out[], size_t out_bytes, const T in[])
662  {
663  while(out_bytes >= sizeof(T))
664  {
665  store_be(in[0], out);
666  out += sizeof(T);
667  out_bytes -= sizeof(T);
668  in += 1;
669  }
670 
671  for(size_t i = 0; i != out_bytes; ++i)
672  out[i] = get_byte(i%8, in[0]);
673  }
674 
675 template<typename T, typename Alloc>
676 void copy_out_vec_be(uint8_t out[], size_t out_bytes, const std::vector<T, Alloc>& in)
677  {
678  copy_out_be(out, out_bytes, in.data());
679  }
680 
681 template<typename T>
682 void copy_out_le(uint8_t out[], size_t out_bytes, const T in[])
683  {
684  while(out_bytes >= sizeof(T))
685  {
686  store_le(in[0], out);
687  out += sizeof(T);
688  out_bytes -= sizeof(T);
689  in += 1;
690  }
691 
692  for(size_t i = 0; i != out_bytes; ++i)
693  out[i] = get_byte(sizeof(T) - 1 - (i % 8), in[0]);
694  }
695 
696 template<typename T, typename Alloc>
697 void copy_out_vec_le(uint8_t out[], size_t out_bytes, const std::vector<T, Alloc>& in)
698  {
699  copy_out_le(out, out_bytes, in.data());
700  }
701 
702 }
703 
704 #endif
void copy_out_vec_be(uint8_t out[], size_t out_bytes, const std::vector< T, Alloc > &in)
Definition: loadstor.h:676
uint16_t load_le< uint16_t >(const uint8_t in[], size_t off)
Definition: loadstor.h:165
void store_be(uint16_t in, uint8_t out[2])
Definition: loadstor.h:441
void copy_out_le(uint8_t out[], size_t out_bytes, const T in[])
Definition: loadstor.h:682
uint16_t load_be< uint16_t >(const uint8_t in[], size_t off)
Definition: loadstor.h:145
uint32_t load_be< uint32_t >(const uint8_t in[], size_t off)
Definition: loadstor.h:185
uint32_t load_le< uint32_t >(const uint8_t in[], size_t off)
Definition: loadstor.h:204
uint64_t load_be< uint64_t >(const uint8_t in[], size_t off)
Definition: loadstor.h:223
T load_be(const uint8_t in[], size_t off)
Definition: loadstor.h:113
uint64_t load_le< uint64_t >(const uint8_t in[], size_t off)
Definition: loadstor.h:243
T load_le(const uint8_t in[], size_t off)
Definition: loadstor.h:129
Definition: alg_id.cpp:13
void bswap_4(T x[4])
Definition: bswap.h:112
uint16_t reverse_bytes(uint16_t val)
Definition: bswap.h:24
uint64_t make_uint64(uint8_t i0, uint8_t i1, uint8_t i2, uint8_t i3, uint8_t i4, uint8_t i5, uint8_t i6, uint8_t i7)
Definition: loadstor.h:93
uint16_t make_uint16(uint8_t i0, uint8_t i1)
Definition: loadstor.h:60
uint8_t get_byte(size_t byte_num, T input)
Definition: loadstor.h:47
uint32_t make_uint32(uint8_t i0, uint8_t i1, uint8_t i2, uint8_t i3)
Definition: loadstor.h:73
void copy_out_be(uint8_t out[], size_t out_bytes, const T in[])
Definition: loadstor.h:661
void store_le(uint16_t in, uint8_t out[2])
Definition: loadstor.h:457
void copy_out_vec_le(uint8_t out[], size_t out_bytes, const std::vector< T, Alloc > &in)
Definition: loadstor.h:697