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Overview
Comment: | Remove some cruft from the VDBE. Bring comments up to date. (CVS 2888) |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA1: |
41aef6496a10c81e1095408dc8f69740 |
User & Date: | drh 2006-01-08 05:26:41.000 |
Context
2006-01-08
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18:10 | Get LIMIT and OFFSET working again for negative limits and offsets. Ticket #1586. (CVS 2889) (check-in: b2ac0be07e user: drh tags: trunk) | |
05:26 | Remove some cruft from the VDBE. Bring comments up to date. (CVS 2888) (check-in: 41aef6496a user: drh tags: trunk) | |
05:02 | Reduce memory requirements for ORDER BY combined with LIMIT. Ticket #1586. (CVS 2887) (check-in: 55e703ecac user: drh tags: trunk) | |
Changes
Changes to src/vdbe.c.
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39 40 41 42 43 44 45 | ** ** Various scripts scan this source file in order to generate HTML ** documentation, headers files, or other derived files. The formatting ** of the code in this file is, therefore, important. See other comments ** in this file for details. If in doubt, do not deviate from existing ** commenting and indentation practices when changing or adding code. ** | | | 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 | ** ** Various scripts scan this source file in order to generate HTML ** documentation, headers files, or other derived files. The formatting ** of the code in this file is, therefore, important. See other comments ** in this file for details. If in doubt, do not deviate from existing ** commenting and indentation practices when changing or adding code. ** ** $Id: vdbe.c,v 1.517 2006/01/08 05:26:41 drh Exp $ */ #include "sqliteInt.h" #include "os.h" #include <ctype.h> #include "vdbeInt.h" /* |
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4273 4274 4275 4276 4277 4278 4279 | if( pMem->i<pTos->i){ pMem->i = pTos->i; } break; } #endif /* SQLITE_OMIT_AUTOINCREMENT */ | | | < < | | < | < | | > > | > | > > > | > | 4273 4274 4275 4276 4277 4278 4279 4280 4281 4282 4283 4284 4285 4286 4287 4288 4289 4290 4291 4292 4293 4294 4295 4296 4297 4298 4299 4300 4301 4302 4303 4304 4305 4306 4307 4308 4309 4310 4311 4312 4313 4314 4315 4316 4317 4318 4319 4320 4321 4322 4323 4324 4325 4326 4327 4328 4329 4330 4331 4332 4333 4334 4335 4336 4337 4338 | if( pMem->i<pTos->i){ pMem->i = pTos->i; } break; } #endif /* SQLITE_OMIT_AUTOINCREMENT */ /* Opcode: MemIncr P1 * * ** ** Increment the integer valued memory cell P1 by 1. ** ** It is illegal to use this instruction on a memory cell that does ** not contain an integer. An assertion fault will result if you try. */ case OP_MemIncr: { /* no-push */ int i = pOp->p1; Mem *pMem; assert( i>=0 && i<p->nMem ); pMem = &p->aMem[i]; assert( pMem->flags==MEM_Int ); pMem->i++; assert( pOp->p2==0 ); break; } /* Opcode: IfMemPos P1 P2 * ** ** If the value of memory cell P1 is 1 or greater, jump to P2. If ** the memory cell holds an integer of 0 or less. ** ** It is illegal to use this instruction on a memory cell that does ** not contain an integer. An assertion fault will result if you try. */ case OP_IfMemPos: { /* no-push */ int i = pOp->p1; Mem *pMem; assert( i>=0 && i<p->nMem ); pMem = &p->aMem[i]; assert( pMem->flags==MEM_Int ); if( pMem->i>0 ){ pc = pOp->p2 - 1; } break; } /* Opcode: IfMemZero P1 P2 * ** ** If the value of memory cell P1 is exactly 0, jump to P2. ** ** It is illegal to use this instruction on a memory cell that does ** not contain an integer. An assertion fault will result if you try. */ case OP_IfMemZero: { /* no-push */ int i = pOp->p1; Mem *pMem; assert( i>=0 && i<p->nMem ); pMem = &p->aMem[i]; assert( pMem->flags==MEM_Int ); if( pMem->i==0 ){ pc = pOp->p2 - 1; } break; } /* Opcode: MemNull P1 * * ** |
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