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Overview
| Comment: | Enable use of the __builtin_bswap32() only with GCC 4.3 and higher. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
030f60a7ba171650ce8c0ac32dc166ea |
| User & Date: | mistachkin 2015-07-03 17:54:49 |
Context
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2015-07-03
| ||
| 19:13 | Speed up eof checks on fts5 cursors. (check-in: 3df4af5d user: dan tags: trunk) | |
| 17:54 | Enable use of the __builtin_bswap32() only with GCC 4.3 and higher. (check-in: 030f60a7 user: mistachkin tags: trunk) | |
| 17:14 | Avoid freeing the array of instance matches each time the fts5 xNext() method is called. (check-in: b9b0c1e5 user: dan tags: trunk) | |
Changes
Changes to src/util.c.
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** 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__)
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);
................................................................................
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__)
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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** 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);
................................................................................
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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