Mercurial > hg
view mercurial/bitmanipulation.h @ 47643:11f834e7177d
pyoxidizer: add hooks to inject extra python packages and install files
We need this type of hook to inject our internal extension and resource files
at Google. Presumably this could be useful to others, so instead of trying to
carry an internal patch we've done this in a modular way that should be of
value upstream.
I'm extremely puzzled by the behavior of glob() on Windows, and I'll
be filing at least one (probably two) bugs upstream about it.
Differential Revision: https://phab.mercurial-scm.org/D11092
author | Augie Fackler <augie@google.com> |
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date | Mon, 12 Jul 2021 15:56:25 -0400 |
parents | eed42f1c22d6 |
children | d86908050375 |
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#ifndef _HG_BITMANIPULATION_H_ #define _HG_BITMANIPULATION_H_ #include <string.h> #include "compat.h" /* Reads a 64 bit integer from big-endian bytes. Assumes that the data is long enough */ static inline uint64_t getbe64(const char *c) { const unsigned char *d = (const unsigned char *)c; return ((((uint64_t)d[0]) << 56) | (((uint64_t)d[1]) << 48) | (((uint64_t)d[2]) << 40) | (((uint64_t)d[3]) << 32) | (((uint64_t)d[4]) << 24) | (((uint64_t)d[5]) << 16) | (((uint64_t)d[6]) << 8) | (d[7])); } 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])); } /* Writes a 64 bit integer to bytes in a big-endian format. Assumes that the buffer is long enough */ static inline void putbe64(uint64_t x, char *c) { c[0] = (x >> 56) & 0xff; c[1] = (x >> 48) & 0xff; c[2] = (x >> 40) & 0xff; c[3] = (x >> 32) & 0xff; c[4] = (x >> 24) & 0xff; c[5] = (x >> 16) & 0xff; c[6] = (x >> 8) & 0xff; c[7] = (x)&0xff; } 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