Mercurial > hg
view mercurial/bitmanipulation.h @ 41937:232d4b9d391a
uncommit: move _movedirstate() to scmutil for reuse
The function should be applicable generically when moving from one
commit to another. I'll try to add more callers when I find time.
I'm not convinced it's handling all the cases correctly, but we should
have a generic function for this kind of operation, so I think it
belongs somewhere in core (not in the uncommit extension).
Differential Revision: https://phab.mercurial-scm.org/D6119
author | Martin von Zweigbergk <martinvonz@google.com> |
---|---|
date | Mon, 11 Mar 2019 09:42:29 -0700 |
parents | 1fb2510cf8c8 |
children | eed42f1c22d6 |
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#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 ((((uint32_t)d[0]) << 24) | (((uint32_t)d[1]) << 16) | (((uint32_t)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