mercurial/bitmanipulation.h
author Martin von Zweigbergk <martinvonz@google.com>
Wed, 09 May 2018 13:46:31 -0700
changeset 37961 c6904da6ab15
parent 34697 ce77b0563228
child 38312 1fb2510cf8c8
permissions -rw-r--r--
tweakdefaults: remove "bisect" from commands.status.skipstates If you forget to clear bisect state after you're done bisecting (as I've done twice in the last week or so), the next time you run `hg bisect --good/--bad`, it's going to tell you "The first bad revision is:" etc. It's probably not obvious to new users what's going on, and having the verbose output about an ongoing bisection will probably help them, so let's turn it back on by default. Differential Revision: https://phab.mercurial-scm.org/D3516

#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