mercurial/bitmanipulation.h
author Gregory Szorc <gregory.szorc@gmail.com>
Mon, 05 Mar 2018 00:30:00 -0500
changeset 37125 6f570c501e3e
parent 34697 ce77b0563228
child 38303 1fb2510cf8c8
permissions -rw-r--r--
merge: deprecate accessing update results by index Now that we have named attributes, let's convert the code base to use them. We also add deprecation warnings so legacy consumers are aware of their transgressions. ``stats.unresolvedcount`` is much easier to read than ``stats[3]``, don't you think? Differential Revision: https://phab.mercurial-scm.org/D2694

#ifndef _HG_BITMANIPULATION_H_
#define _HG_BITMANIPULATION_H_

#include <string.h>

#include "compat.h"

static inline uint32_t getbe32(const char *c)
{
	const unsigned char *d = (const unsigned char *)c;

	return ((d[0] << 24) | (d[1] << 16) | (d[2] << 8) | (d[3]));
}

static inline int16_t getbeint16(const char *c)
{
	const unsigned char *d = (const unsigned char *)c;

	return ((d[0] << 8) | (d[1]));
}

static inline uint16_t getbeuint16(const char *c)
{
	const unsigned char *d = (const unsigned char *)c;

	return ((d[0] << 8) | (d[1]));
}

static inline void putbe32(uint32_t x, char *c)
{
	c[0] = (x >> 24) & 0xff;
	c[1] = (x >> 16) & 0xff;
	c[2] = (x >> 8) & 0xff;
	c[3] = (x)&0xff;
}

static inline double getbefloat64(const char *c)
{
	const unsigned char *d = (const unsigned char *)c;
	double ret;
	int i;
	uint64_t t = 0;
	for (i = 0; i < 8; i++) {
		t = (t << 8) + d[i];
	}
	memcpy(&ret, &t, sizeof(t));
	return ret;
}

#endif