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Overview
| Comment: | Prevent a warning about integer overflow when using a very large negative LIMIT. |
|---|---|
| Downloads: | Tarball | ZIP archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
96106d5620eae51474234f4eec1d2c5b |
| User & Date: | drh 2016-11-30 01:05:41.141 |
Context
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2016-11-30
| ||
| 04:07 | More improvements to boundary cases in the date/time functions, flowing out of branch coverage testing. (check-in: 1218005ab7 user: drh tags: trunk) | |
| 01:05 | Prevent a warning about integer overflow when using a very large negative LIMIT. (check-in: 96106d5620 user: drh tags: trunk) | |
| 00:48 | Further changes to the date/time functions to suppress harmless signed integer overflow warnings that could have occurred when doing out-of-range date calculations which, according to the docs, give undefined results. (check-in: dc453b3403 user: drh tags: trunk) | |
Changes
Changes to src/vdbe.c.
| ︙ | ︙ | |||
6018 6019 6020 6021 6022 6023 6024 | } break; } /* Opcode: DecrJumpZero P1 P2 * * * ** Synopsis: if (--r[P1])==0 goto P2 ** | | | > | | | > | 6018 6019 6020 6021 6022 6023 6024 6025 6026 6027 6028 6029 6030 6031 6032 6033 6034 6035 6036 6037 6038 6039 6040 6041 6042 |
}
break;
}
/* Opcode: DecrJumpZero P1 P2 * * *
** Synopsis: if (--r[P1])==0 goto P2
**
** Register P1 must hold an integer. If the value in P1 is positive,
** decrement the value and jump to P2 if the new value is exactly zero.
*/
case OP_DecrJumpZero: { /* jump, in1 */
pIn1 = &aMem[pOp->p1];
assert( pIn1->flags&MEM_Int );
if( pIn1->u.i>0 ){
pIn1->u.i--;
VdbeBranchTaken(pIn1->u.i==0, 2);
if( pIn1->u.i==0 ) goto jump_to_p2;
}
break;
}
/* Opcode: AggStep0 * P2 P3 P4 P5
** Synopsis: accum=r[P3] step(r[P2@P5])
**
|
| ︙ | ︙ |