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annotate mercurial/bitmanipulation.h @ 31267:11831d755b51

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merge: remove uses of manifest.matches This gets rid of the manifest.matches calls in merge.py in favor of the new api. This is part of getting rid of manifest.matches since it is O(manifest).
author Durham Goode <durham@fb.com>
date Tue, 07 Mar 2017 18:38:20 -0800
parents 284d742e5611
children b4356d1cf3e4
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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 "compat.h"
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5
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6 static inline uint32_t getbe32(const char *c)
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7 {
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8 const unsigned char *d = (const unsigned char *)c;
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9
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10 return ((d[0] << 24) |
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11 (d[1] << 16) |
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12 (d[2] << 8) |
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13 (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) |
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21 (d[1]));
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22 }
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23
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24 static inline uint16_t getbeuint16(const char *c)
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25 {
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26 const unsigned char *d = (const unsigned char *)c;
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27
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28 return ((d[0] << 8) |
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29 (d[1]));
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30 }
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31
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32 static inline void putbe32(uint32_t x, char *c)
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33 {
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34 c[0] = (x >> 24) & 0xff;
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35 c[1] = (x >> 16) & 0xff;
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36 c[2] = (x >> 8) & 0xff;
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37 c[3] = (x) & 0xff;
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38 }
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39
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40 static inline double getbefloat64(const char *c)
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41 {
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42 const unsigned char *d = (const unsigned char *)c;
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43 double ret;
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44 int i;
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45 uint64_t t = 0;
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46 for (i = 0; i < 8; i++) {
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47 t = (t<<8) + d[i];
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48 }
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49 memcpy(&ret, &t, sizeof(t));
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50 return ret;
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51 }
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52
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53 #endif