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Overview
| Comment: | Correct typos in comments. No changes to code. |
|---|---|
| Downloads: | Tarball | ZIP archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
55879932116d373c95a5f32ec44b53a9 |
| User & Date: | mistachkin 2014-09-18 18:55:47.619 |
Context
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2014-09-18
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| 21:25 | Add the Mem.szMalloc element to the Mem object and use it to keep track of the size of the Mem.zMalloc allocation. (check-in: 9c09ac353d user: drh tags: trunk) | |
| 18:55 | Correct typos in comments. No changes to code. (check-in: 5587993211 user: mistachkin tags: trunk) | |
| 17:52 | Merge the Mem.r value into the MemValue union as Mem.u.r. Hence, a Mem can now store an integer or a real but not both at the same time. Strings are still stored in a separate element Mem.z, for now. (check-in: 4c8c89d7e6 user: drh tags: trunk) | |
Changes
Changes to src/vdbeInt.h.
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158 159 160 161 162 163 164 |
/*
** Internally, the vdbe manipulates nearly all SQL values as Mem
** structures. Each Mem struct may cache multiple representations (string,
** integer etc.) of the same value.
*/
struct Mem {
union MemValue {
| | | 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 |
/*
** Internally, the vdbe manipulates nearly all SQL values as Mem
** structures. Each Mem struct may cache multiple representations (string,
** integer etc.) of the same value.
*/
struct Mem {
union MemValue {
double r; /* Real value used when MEM_Real is set in flags */
i64 i; /* Integer value used when MEM_Int is set in flags */
int nZero; /* Used when bit MEM_Zero is set in flags */
FuncDef *pDef; /* Used only when flags==MEM_Agg */
RowSet *pRowSet; /* Used only when flags==MEM_RowSet */
VdbeFrame *pFrame; /* Used when flags==MEM_Frame */
} u;
u16 flags; /* Some combination of MEM_Null, MEM_Str, MEM_Dyn, etc. */
|
| ︙ | ︙ | |||
264 265 266 267 268 269 270 |
** structure are known.
**
** This structure is defined inside of vdbeInt.h because it uses substructures
** (Mem) which are only defined there.
*/
struct sqlite3_context {
Mem *pOut; /* The return value is stored here */
| | | | 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 |
** structure are known.
**
** This structure is defined inside of vdbeInt.h because it uses substructures
** (Mem) which are only defined there.
*/
struct sqlite3_context {
Mem *pOut; /* The return value is stored here */
FuncDef *pFunc; /* Pointer to function information */
Mem *pMem; /* Memory cell used to store aggregate context */
CollSeq *pColl; /* Collating sequence */
Vdbe *pVdbe; /* The VM that owns this context */
int iOp; /* Instruction number of OP_Function */
int isError; /* Error code returned by the function. */
u8 skipFlag; /* Skip accumulator loading if true */
u8 fErrorOrAux; /* isError!=0 or pVdbe->pAuxData modified */
};
/*
** An Explain object accumulates indented output which is helpful
** in describing recursive data structures.
*/
|
| ︙ | ︙ |