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Overview
| Comment: | An optimization to sqlite3VdbeSerialType(). (CVS 2278) |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
db36773830cc81c38b78d1776a495d49 |
| User & Date: | drh 2005-01-26 17:47:03 |
Context
|
2005-01-26
| ||
| 21:55 | Propagate detected database corruption up through the call stack. (CVS 2279) check-in: 2c54aba5 user: drh tags: trunk | |
| 17:47 | An optimization to sqlite3VdbeSerialType(). (CVS 2278) check-in: db367738 user: drh tags: trunk | |
| 10:39 | Add an entry to faq.tcl regarding SQLITE_SCHEMA errors. (CVS 2277) check-in: 12defe8c user: danielk1977 tags: trunk | |
Changes
Changes to src/vdbeaux.c.
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if( flags&MEM_Null ){
return 0;
}
if( flags&MEM_Int ){
/* Figure out whether to use 1, 2, 4, 6 or 8 bytes. */
# define MAX_6BYTE ((((i64)0x00010000)<<32)-1)
i64 i = pMem->i;
if( i>=-127 && i<=127 ) return 1;
if( i>=-32767 && i<=32767 ) return 2;
if( i>=-8388607 && i<=8388607 ) return 3;
if( i>=-2147483647 && i<=2147483647 ) return 4;
if( i>=-MAX_6BYTE && i<=MAX_6BYTE ) return 5;
return 6;
}
if( flags&MEM_Real ){
return 7;
}
if( flags&MEM_Str ){
int n = pMem->n;
|
> | | | | | |
1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 |
if( flags&MEM_Null ){
return 0;
}
if( flags&MEM_Int ){
/* Figure out whether to use 1, 2, 4, 6 or 8 bytes. */
# define MAX_6BYTE ((((i64)0x00010000)<<32)-1)
i64 i = pMem->i;
u64 u = i<0 ? -i : i;
if( u<=127 ) return 1;
if( u<=32767 ) return 2;
if( u<=8388607 ) return 3;
if( u<=2147483647 ) return 4;
if( u<=MAX_6BYTE ) return 5;
return 6;
}
if( flags&MEM_Real ){
return 7;
}
if( flags&MEM_Str ){
int n = pMem->n;
|