Mercurial > hg
annotate mercurial/bitmanipulation.h @ 29799:45fa8de47a0f
py3: provide (del|get|has|set)attr wrappers that accepts bytes
These functions will be imported automagically by our code transformer.
getattr() and setattr() are widely used in our code. We wouldn't probably
want to rewrite every single call of getattr/setattr. delattr() and hasattr()
aren't that important, but they are functions of the same kind.
author | Yuya Nishihara <yuya@tcha.org> |
---|---|
date | Sun, 14 Aug 2016 12:51:21 +0900 |
parents | 284d742e5611 |
children | b4356d1cf3e4 |
rev | line source |
---|---|
29444
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
1 #ifndef _HG_BITMANIPULATION_H_ |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
2 #define _HG_BITMANIPULATION_H_ |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
3 |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
4 #include "compat.h" |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
5 |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
6 static inline uint32_t getbe32(const char *c) |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
7 { |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
8 const unsigned char *d = (const unsigned char *)c; |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
9 |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
10 return ((d[0] << 24) | |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
11 (d[1] << 16) | |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
12 (d[2] << 8) | |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
13 (d[3])); |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
14 } |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
15 |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
16 static inline int16_t getbeint16(const char *c) |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
17 { |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
18 const unsigned char *d = (const unsigned char *)c; |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
19 |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
20 return ((d[0] << 8) | |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
21 (d[1])); |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
22 } |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
23 |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
24 static inline uint16_t getbeuint16(const char *c) |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
25 { |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
26 const unsigned char *d = (const unsigned char *)c; |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
27 |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
28 return ((d[0] << 8) | |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
29 (d[1])); |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
30 } |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
31 |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
32 static inline void putbe32(uint32_t x, char *c) |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
33 { |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
34 c[0] = (x >> 24) & 0xff; |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
35 c[1] = (x >> 16) & 0xff; |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
36 c[2] = (x >> 8) & 0xff; |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
37 c[3] = (x) & 0xff; |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
38 } |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
39 |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
40 static inline double getbefloat64(const char *c) |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
41 { |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
42 const unsigned char *d = (const unsigned char *)c; |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
43 double ret; |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
44 int i; |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
45 uint64_t t = 0; |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
46 for (i = 0; i < 8; i++) { |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
47 t = (t<<8) + d[i]; |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
48 } |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
49 memcpy(&ret, &t, sizeof(t)); |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
50 return ret; |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
51 } |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
52 |
284d742e5611
internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff
changeset
|
53 #endif |