Mercurial > hg
annotate mercurial/bitmanipulation.h @ 38618:c829749e7639
shelve: directly handle the initial parent alignment
Shelve is currently sub-contracting some of its work to the rebase extension.
In order to make shelve more independent and flexible we would like shelve to
handle the parent alignment directly.
After this change, we no longer need to use rebase in shelve.
Differential Revision: https://phab.mercurial-scm.org/D3693
author | Boris Feld <boris.feld@octobus.net> |
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date | Tue, 29 May 2018 00:30:50 +0200 |
parents | 1fb2510cf8c8 |
children | eed42f1c22d6 |
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1 #ifndef _HG_BITMANIPULATION_H_ |
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2 #define _HG_BITMANIPULATION_H_ |
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3 |
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4 #include <string.h> |
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5 |
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6 #include "compat.h" |
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7 |
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8 static inline uint32_t getbe32(const char *c) |
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9 { |
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10 const unsigned char *d = (const unsigned char *)c; |
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11 |
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12 return ((((uint32_t)d[0]) << 24) | (((uint32_t)d[1]) << 16) | |
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13 (((uint32_t)d[2]) << 8) | (d[3])); |
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14 } |
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15 |
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16 static inline int16_t getbeint16(const char *c) |
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17 { |
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18 const unsigned char *d = (const unsigned char *)c; |
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19 |
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20 return ((d[0] << 8) | (d[1])); |
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21 } |
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22 |
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23 static inline uint16_t getbeuint16(const char *c) |
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24 { |
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25 const unsigned char *d = (const unsigned char *)c; |
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26 |
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27 return ((d[0] << 8) | (d[1])); |
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28 } |
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29 |
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30 static inline void putbe32(uint32_t x, char *c) |
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31 { |
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32 c[0] = (x >> 24) & 0xff; |
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33 c[1] = (x >> 16) & 0xff; |
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34 c[2] = (x >> 8) & 0xff; |
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35 c[3] = (x)&0xff; |
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36 } |
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37 |
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38 static inline double getbefloat64(const char *c) |
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39 { |
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40 const unsigned char *d = (const unsigned char *)c; |
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41 double ret; |
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42 int i; |
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43 uint64_t t = 0; |
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44 for (i = 0; i < 8; i++) { |
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45 t = (t << 8) + d[i]; |
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46 } |
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47 memcpy(&ret, &t, sizeof(t)); |
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48 return ret; |
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49 } |
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50 |
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51 #endif |