mercurial/bitmanipulation.h
author Martin von Zweigbergk <martinvonz@google.com>
Mon, 13 Feb 2017 00:05:55 -0800
changeset 31168 41a9edc5d00f
parent 29444 284d742e5611
child 32646 b4356d1cf3e4
permissions -rw-r--r--
update: allow setting default update check to "noconflict" The new value allows update (linear or not) as long as they don't result in file merges. I'm hoping that this value can some day become the default.
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#ifndef _HG_BITMANIPULATION_H_
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#define _HG_BITMANIPULATION_H_
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#include "compat.h"
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static inline uint32_t getbe32(const char *c)
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{
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	const unsigned char *d = (const unsigned char *)c;
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	return ((d[0] << 24) |
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		(d[1] << 16) |
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		(d[2] << 8) |
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		(d[3]));
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}
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static inline int16_t getbeint16(const char *c)
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{
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	const unsigned char *d = (const unsigned char *)c;
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	return ((d[0] << 8) |
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		(d[1]));
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}
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static inline uint16_t getbeuint16(const char *c)
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{
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	const unsigned char *d = (const unsigned char *)c;
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	return ((d[0] << 8) |
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		(d[1]));
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}
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static inline void putbe32(uint32_t x, char *c)
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{
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	c[0] = (x >> 24) & 0xff;
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	c[1] = (x >> 16) & 0xff;
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	c[2] = (x >> 8) & 0xff;
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	c[3] = (x) & 0xff;
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}
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static inline double getbefloat64(const char *c)
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{
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	const unsigned char *d = (const unsigned char *)c;
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	double ret;
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	int i;
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	uint64_t t = 0;
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	for (i = 0; i < 8; i++) {
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		t = (t<<8) + d[i];
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	}
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	memcpy(&ret, &t, sizeof(t));
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	return ret;
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}
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#endif