Many hyperlinks are disabled.
Use anonymous login
to enable hyperlinks.
Overview
| Comment: | Minor changes to the CAST logic to make it more testable. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
1ad70ec550c004160d9c0c57e6c41681 |
| User & Date: | drh 2014-08-25 21:11:01 |
Context
|
2014-08-25
| ||
| 22:37 | Add an assert() and five testcase() macros to the OP_Cast opcode implementation to help verify that it is fully tested. check-in: af364cce user: drh tags: trunk | |
| 21:11 | Minor changes to the CAST logic to make it more testable. check-in: 1ad70ec5 user: drh tags: trunk | |
| 20:21 | Test cases added for using unary "+" and CAST operators on the RHS of range constraints and verifying that STAT3/4 can use those constraints. check-in: 42505e5a user: drh tags: trunk | |
Changes
Changes to src/vdbemem.c.
405 405 if( flags & MEM_Int ){ 406 406 return pMem->u.i; 407 407 }else if( flags & MEM_Real ){ 408 408 return doubleToInt64(pMem->r); 409 409 }else if( flags & (MEM_Str|MEM_Blob) ){ 410 410 i64 value = 0; 411 411 assert( pMem->z || pMem->n==0 ); 412 - testcase( pMem->z==0 ); 413 412 sqlite3Atoi64(pMem->z, &value, pMem->n, pMem->enc); 414 413 return value; 415 414 }else{ 416 415 return 0; 417 416 } 418 417 } 419 418 ................................................................................ 1062 1061 } 1063 1062 while( (op = pExpr->op)==TK_UPLUS ) pExpr = pExpr->pLeft; 1064 1063 if( NEVER(op==TK_REGISTER) ) op = pExpr->op2; 1065 1064 1066 1065 if( op==TK_CAST ){ 1067 1066 u8 aff = sqlite3AffinityType(pExpr->u.zToken,0); 1068 1067 rc = valueFromExpr(db, pExpr->pLeft, enc, aff, ppVal, pCtx); 1069 - if( rc==SQLITE_OK && *ppVal ){ 1068 + testcase( rc!=SQLITE_OK ); 1069 + if( *ppVal ){ 1070 1070 sqlite3VdbeMemCast(*ppVal, aff, SQLITE_UTF8); 1071 1071 sqlite3ValueApplyAffinity(*ppVal, affinity, SQLITE_UTF8); 1072 1072 } 1073 1073 return rc; 1074 1074 } 1075 1075 1076 1076 /* Handle negative integers in a single step. This is needed in the