annotate mercurial/bitmanipulation.h @ 33950:42361715dd11

tests: update test-command-template to pass our import checker
author Augie Fackler <raf@durin42.com>
date Tue, 22 Aug 2017 15:49:54 -0400
parents b4356d1cf3e4
children ce77b0563228
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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 ((d[0] << 24) |
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13 (d[1] << 16) |
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14 (d[2] << 8) |
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15 (d[3]));
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16 }
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17
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18 static inline int16_t getbeint16(const char *c)
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19 {
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20 const unsigned char *d = (const unsigned char *)c;
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21
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22 return ((d[0] << 8) |
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23 (d[1]));
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24 }
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25
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26 static inline uint16_t getbeuint16(const char *c)
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27 {
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28 const unsigned char *d = (const unsigned char *)c;
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30 return ((d[0] << 8) |
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31 (d[1]));
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32 }
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34 static inline void putbe32(uint32_t x, char *c)
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35 {
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36 c[0] = (x >> 24) & 0xff;
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37 c[1] = (x >> 16) & 0xff;
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38 c[2] = (x >> 8) & 0xff;
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39 c[3] = (x) & 0xff;
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40 }
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41
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42 static inline double getbefloat64(const char *c)
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43 {
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44 const unsigned char *d = (const unsigned char *)c;
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45 double ret;
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46 int i;
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47 uint64_t t = 0;
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48 for (i = 0; i < 8; i++) {
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49 t = (t<<8) + d[i];
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50 }
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51 memcpy(&ret, &t, sizeof(t));
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52 return ret;
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53 }
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54
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55 #endif