Mercurial > hg-stable
view mercurial/bitmanipulation.h @ 32477:e72c5263ccaf
revset: use try-except instead of if-else because of perf
For wdir(), we now raises an exception which will be raised when wdir() will be
passed, so catching that exception is better checking for wdir() using if-else.
author | Pulkit Goyal <7895pulkit@gmail.com> |
---|---|
date | Mon, 22 May 2017 02:03:43 +0530 |
parents | 284d742e5611 |
children | b4356d1cf3e4 |
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#ifndef _HG_BITMANIPULATION_H_ #define _HG_BITMANIPULATION_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