mercurial/bitmanipulation.h
author Yuya Nishihara <yuya@tcha.org>
Thu, 03 May 2018 18:15:43 +0900
changeset 37974 b45f4c1532c0
parent 34697 ce77b0563228
child 38303 1fb2510cf8c8
permissions -rw-r--r--
extensions: extract closure that looks for commands from disabled module I'll rewrite this function to not load disabled extensions.
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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
32646
b4356d1cf3e4 bitmanipulation: add missing include of string.h
Martin von Zweigbergk <martinvonz@google.com>
parents: 29444
diff changeset
     4
#include <string.h>
b4356d1cf3e4 bitmanipulation: add missing include of string.h
Martin von Zweigbergk <martinvonz@google.com>
parents: 29444
diff changeset
     5
29444
284d742e5611 internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff changeset
     6
#include "compat.h"
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
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
     9
{
284d742e5611 internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff changeset
    10
	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
    11
34697
ce77b0563228 bitmanipulation: reformat with clang-format
Augie Fackler <augie@google.com>
parents: 32646
diff changeset
    12
	return ((d[0] << 24) | (d[1] << 16) | (d[2] << 8) | (d[3]));
29444
284d742e5611 internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff changeset
    13
}
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
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
    16
{
284d742e5611 internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff changeset
    17
	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
    18
34697
ce77b0563228 bitmanipulation: reformat with clang-format
Augie Fackler <augie@google.com>
parents: 32646
diff changeset
    19
	return ((d[0] << 8) | (d[1]));
29444
284d742e5611 internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff changeset
    20
}
284d742e5611 internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff changeset
    21
284d742e5611 internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff changeset
    22
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
    23
{
284d742e5611 internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff changeset
    24
	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
    25
34697
ce77b0563228 bitmanipulation: reformat with clang-format
Augie Fackler <augie@google.com>
parents: 32646
diff changeset
    26
	return ((d[0] << 8) | (d[1]));
29444
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
284d742e5611 internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff changeset
    29
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
    30
{
284d742e5611 internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff changeset
    31
	c[0] = (x >> 24) & 0xff;
284d742e5611 internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff changeset
    32
	c[1] = (x >> 16) & 0xff;
284d742e5611 internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff changeset
    33
	c[2] = (x >> 8) & 0xff;
34697
ce77b0563228 bitmanipulation: reformat with clang-format
Augie Fackler <augie@google.com>
parents: 32646
diff changeset
    34
	c[3] = (x)&0xff;
29444
284d742e5611 internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff changeset
    35
}
284d742e5611 internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff changeset
    36
284d742e5611 internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff changeset
    37
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
    38
{
284d742e5611 internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff changeset
    39
	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
    40
	double ret;
284d742e5611 internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff changeset
    41
	int i;
284d742e5611 internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff changeset
    42
	uint64_t t = 0;
284d742e5611 internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff changeset
    43
	for (i = 0; i < 8; i++) {
34697
ce77b0563228 bitmanipulation: reformat with clang-format
Augie Fackler <augie@google.com>
parents: 32646
diff changeset
    44
		t = (t << 8) + d[i];
29444
284d742e5611 internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff changeset
    45
	}
284d742e5611 internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff changeset
    46
	memcpy(&ret, &t, sizeof(t));
284d742e5611 internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff changeset
    47
	return ret;
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
284d742e5611 internals: move the bitmanipulation routines into its own file
Maciej Fijalkowski <fijall@gmail.com>
parents:
diff changeset
    50
#endif