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Overview
Comment: | Enable use of the __builtin_bswap32() only with GCC 4.3 and higher. |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA1: |
030f60a7ba171650ce8c0ac32dc166ea |
User & Date: | mistachkin 2015-07-03 17:54:49.505 |
Context
2015-07-03
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19:13 | Speed up eof checks on fts5 cursors. (check-in: 3df4af5d8c user: dan tags: trunk) | |
17:54 | Enable use of the __builtin_bswap32() only with GCC 4.3 and higher. (check-in: 030f60a7ba user: mistachkin tags: trunk) | |
17:14 | Avoid freeing the array of instance matches each time the fts5 xNext() method is called. (check-in: b9b0c1e50d user: dan tags: trunk) | |
Changes
Changes to src/util.c.
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1078 1079 1080 1081 1082 1083 1084 | ** Read or write a four-byte big-endian integer value. */ u32 sqlite3Get4byte(const u8 *p){ #if SQLITE_BYTEORDER==4321 u32 x; memcpy(&x,p,4); return x; | | | | 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 | ** Read or write a four-byte big-endian integer value. */ u32 sqlite3Get4byte(const u8 *p){ #if SQLITE_BYTEORDER==4321 u32 x; memcpy(&x,p,4); return x; #elif SQLITE_BYTEORDER==1234 && defined(__GNUC__) && GCC_VERSION>=4003000 u32 x; memcpy(&x,p,4); return __builtin_bswap32(x); #elif SQLITE_BYTEORDER==1234 && defined(_MSC_VER) && _MSC_VER>=1300 u32 x; memcpy(&x,p,4); return _byteswap_ulong(x); #else testcase( p[0]&0x80 ); return ((unsigned)p[0]<<24) | (p[1]<<16) | (p[2]<<8) | p[3]; #endif } void sqlite3Put4byte(unsigned char *p, u32 v){ #if SQLITE_BYTEORDER==4321 memcpy(p,&v,4); #elif SQLITE_BYTEORDER==1234 && defined(__GNUC__) && GCC_VERSION>=4003000 u32 x = __builtin_bswap32(v); memcpy(p,&x,4); #elif SQLITE_BYTEORDER==1234 && defined(_MSC_VER) && _MSC_VER>=1300 u32 x = _byteswap_ulong(v); memcpy(p,&x,4); #else p[0] = (u8)(v>>24); |
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