Remove or rename local variables that shadow other variables or parameters. (CVS 6005)

FossilOrigin-Name: e7e9fa4fa1b7fc0668f4e3a51873ee5d11893f42

manifest

@@ -1,5 +1,5 @@
-C Add\sexplicit\scasts\sto\ssilence\snuisance\swarnings\sfrom\sVC++.\s(CVS\s6004)
+C Remove\sor\srename\slocal\svariables\sthat\sshadow\sother\svariables\sor\sparameters.\s(CVS\s6005)
-D 2008-12-10T16:45:51
+D 2008-12-10T17:20:00
 F Makefile.arm-wince-mingw32ce-gcc fcd5e9cd67fe88836360bb4f9ef4cb7f8e2fb5a0
 F Makefile.in f7e4c81c347b04f7b0f1c1b081a168645d7b8af7
 F Makefile.linux-gcc d53183f4aa6a9192d249731c90dbdffbd2c68654
@@ -103,7 +103,7 @@ F src/btmutex.c 63c5cc4ad5715690767ffcb741e185d7bc35ec1a
 F src/btree.c ba7baa987f9723882ef4655886327622e02a497f
 F src/btree.h 179c3ea813780df78a289a8f5130db18e6d4616e
 F src/btreeInt.h 7ef2c872371d7508657f8d7a4efe651c741d6ee6
-F src/build.c ce642b06016d94b0dbc34d379bac82b597baf8d5
+F src/build.c 01919ad8f5d259b534e04896454e3ed5a344074f
 F src/callback.c e970e5beddbdb23f89a6d05cb1a6419d9f755624
 F src/complete.c cb14e06dbe79dee031031f0d9e686ff306afe07c
 F src/date.c 80b158ab6d14f07bc81df8415c5ab2c477947d42
@@ -115,7 +115,7 @@ F src/global.c 91723e45a2ad03ae5bb97a0a0d2dbb1a0e69527b
 F src/hash.c 582c00618efe2051785e66ba1b6430d5a129de3f
 F src/hash.h 28f38ebb1006a5beedcb013bcdfe31befe7437ae
 F src/hwtime.h 4a1d45f4cae1f402ea19686acf24acf4f0cb53cb
-F src/insert.c 73c4b33767d9540f8ead5d903504ed93f48ad147
+F src/insert.c 665a0e747044b39e87ed42989e9514ac9e16accd
 F src/journal.c cffd2cd214e58c0e99c3ff632b3bee6c7cbb260e
 F src/legacy.c aac57bd984e666059011ea01ec4383892a253be3
 F src/loadext.c 2f53996c693a347edc2d773e9217dde49d96ae64
@@ -145,13 +145,13 @@ F src/parse.y 1f4b7ad690864911919da0c76fa96fd72694185e
 F src/pcache.c 16dc8da6e6ba6250f8dfd9ee46036db1cbceedc6
 F src/pcache.h f20c3e82dd6da622c3fe296170cb1801f9a2d75a
 F src/pcache1.c fb6cf5b80996ed316842d25005f4981bef7ce548
-F src/pragma.c 539e28c90e782fa909a3b3a6849d18a9eb11a548
+F src/pragma.c 88050d5afa74fcae1bb260311fe05918f04bc8a5
-F src/prepare.c fcadb25d2ad722d87103517333c825b56b79a770
+F src/prepare.c 26808c3d6ad2cd85a67969b14fd77bfbe92aaffb
 F src/printf.c e29d9475c63e1dbfae005b98da3a60e07b5c1ca5
 F src/random.c 67bf41b20f1983a0e481e7abb98d64704ee26884
 F src/resolve.c 6dd09880a8a9b74f5bc1aa2ae4247b1afe6acd65
 F src/rowset.c 2256fa4a928f750e2f3d6fc733523034beceb1d6
-F src/select.c 1d3616e4e48f6c15a0c69bf14bc5423f31624f87
+F src/select.c e5b3b244e349cc42401fb62a6c14ea09ea46403c
 F src/shell.c 484bddeefac9314be18d4a60d401e93848274ee8
 F src/sqlite.h.in 619a82b485fbf02276ecb8b1cc629f0c8bcda4ca
 F src/sqlite3ext.h 1db7d63ab5de4b3e6b83dd03d1a4e64fef6d2a17
@@ -198,10 +198,10 @@ F src/vdbe.c fce160c74aad54d14e2bdd8a30443fd78f7b26c5
 F src/vdbe.h 03516f28bf5aca00a53c4dccd6c313f96adb94f6
 F src/vdbeInt.h e6e80a99ce634983b7cc2498843b4d2e5540900a
 F src/vdbeapi.c 20722164e7701a0747eaea03cddbbe0de5cb37bf
-F src/vdbeaux.c bdf1b3cdf97692eedd4ab4d60510531ab3019683
+F src/vdbeaux.c 2b7bfb736a9ad9f48b82149a47c8f430e5df730a
 F src/vdbeblob.c b0dcebfafedcf9c0addc7901ad98f6f986c08935
 F src/vdbemem.c 15dc139e0b9e328e63971e02a7552e8da73b16e8
-F src/vtab.c 02c51eac45dbff1a1d6e73f58febf92ecb563f7f
+F src/vtab.c c4bd078008a7d031f2d88c8a5b67a60eb5966254
 F src/walker.c 488c2660e13224ff70c0c82761118efb547f8f0d
 F src/where.c c5a21be6d5705d1c2c6f5d56a97785e4752791d2
 F tclinstaller.tcl 4356d9d94d2b5ed5e68f9f0c80c4df3048dd7617
@@ -664,7 +664,7 @@ F tool/speedtest16.c c8a9c793df96db7e4933f0852abb7a03d48f2e81
 F tool/speedtest2.tcl ee2149167303ba8e95af97873c575c3e0fab58ff
 F tool/speedtest8.c 2902c46588c40b55661e471d7a86e4dd71a18224
 F tool/speedtest8inst1.c 293327bc76823f473684d589a8160bde1f52c14e
-P 18bbcafc16bb985a7c74e07ffb9c4f28273a7cfd
+P da1cbfa766f7f379c01f4ac9c1210462d8d7c590
-R 16b9d8cfa7d0b4c8f37a0a76a742de3d
+R a2d9934353d665c83ba1bf37542e5a35
 U drh
-Z 23fbcb130f7b999f989b3af42a01d87f
+Z 8d8b858819df06179da86dc62696f90a

manifest.uuid

@@ -1 +1 @@
-da1cbfa766f7f379c01f4ac9c1210462d8d7c590
+e7e9fa4fa1b7fc0668f4e3a51873ee5d11893f42

src/build.c

@@ -22,7 +22,7 @@
 **     COMMIT
 **     ROLLBACK
 **
-** $Id: build.c,v 1.504 2008/12/05 15:24:16 drh Exp $
+** $Id: build.c,v 1.505 2008/12/10 17:20:00 drh Exp $
 */
 #include "sqliteInt.h"
 #include <ctype.h>
@@ -2046,7 +2046,6 @@ void sqlite3DropTable(Parse *pParse, SrcList *pName, int isView, int noErr){
 
 #ifndef SQLITE_OMIT_VIRTUALTABLE
     if( IsVirtual(pTab) ){
-      Vdbe *v = sqlite3GetVdbe(pParse);
       if( v ){
         sqlite3VdbeAddOp0(v, OP_VBegin);
       }

src/insert.c

@@ -12,7 +12,7 @@
 ** This file contains C code routines that are called by the parser
 ** to handle INSERT statements in SQLite.
 **
-** $Id: insert.c,v 1.253 2008/11/19 09:05:27 danielk1977 Exp $
+** $Id: insert.c,v 1.254 2008/12/10 17:20:00 drh Exp $
 */
 #include "sqliteInt.h"
 
@@ -572,24 +572,24 @@ void sqlite3Insert(
       **         goto L
       **      M: ...
       */
-      int regRec;      /* Register to hold packed record */
+      int regRec;          /* Register to hold packed record */
-      int regRowid;    /* Register to hold temp table ROWID */
+      int regTempRowid;    /* Register to hold temp table ROWID */
-      int addrTop;     /* Label "L" */
+      int addrTop;         /* Label "L" */
-      int addrIf;      /* Address of jump to M */
+      int addrIf;          /* Address of jump to M */
 
       srcTab = pParse->nTab++;
       regRec = sqlite3GetTempReg(pParse);
-      regRowid = sqlite3GetTempReg(pParse);
+      regTempRowid = sqlite3GetTempReg(pParse);
       sqlite3VdbeAddOp2(v, OP_OpenEphemeral, srcTab, nColumn);
       addrTop = sqlite3VdbeAddOp1(v, OP_Yield, dest.iParm);
       addrIf = sqlite3VdbeAddOp1(v, OP_If, regEof);
       sqlite3VdbeAddOp3(v, OP_MakeRecord, regFromSelect, nColumn, regRec);
-      sqlite3VdbeAddOp2(v, OP_NewRowid, srcTab, regRowid);
+      sqlite3VdbeAddOp2(v, OP_NewRowid, srcTab, regTempRowid);
-      sqlite3VdbeAddOp3(v, OP_Insert, srcTab, regRec, regRowid);
+      sqlite3VdbeAddOp3(v, OP_Insert, srcTab, regRec, regTempRowid);
       sqlite3VdbeAddOp2(v, OP_Goto, 0, addrTop);
       sqlite3VdbeJumpHere(v, addrIf);
       sqlite3ReleaseTempReg(pParse, regRec);
-      sqlite3ReleaseTempReg(pParse, regRowid);
+      sqlite3ReleaseTempReg(pParse, regTempRowid);
     }
   }else{
     /* This is the case if the data for the INSERT is coming from a VALUES
@@ -690,7 +690,6 @@ void sqlite3Insert(
   /* If this is not a view, open the table and and all indices */
   if( !isView ){
     int nIdx;
-    int i;
 
     baseCur = pParse->nTab;
     nIdx = sqlite3OpenTableAndIndices(pParse, pTab, baseCur, OP_OpenWrite);
@@ -746,7 +745,7 @@ void sqlite3Insert(
   */
   endOfLoop = sqlite3VdbeMakeLabel(v);
   if( triggers_exist & TRIGGER_BEFORE ){
-    int regRowid;
+    int regTrigRowid;
     int regCols;
     int regRec;
 
@@ -756,19 +755,19 @@ void sqlite3Insert(
     ** we do not know what the unique ID will be (because the insert has
     ** not happened yet) so we substitute a rowid of -1
     */
-    regRowid = sqlite3GetTempReg(pParse);
+    regTrigRowid = sqlite3GetTempReg(pParse);
     if( keyColumn<0 ){
-      sqlite3VdbeAddOp2(v, OP_Integer, -1, regRowid);
+      sqlite3VdbeAddOp2(v, OP_Integer, -1, regTrigRowid);
     }else if( useTempTable ){
-      sqlite3VdbeAddOp3(v, OP_Column, srcTab, keyColumn, regRowid);
+      sqlite3VdbeAddOp3(v, OP_Column, srcTab, keyColumn, regTrigRowid);
     }else{
       int j1;
       assert( pSelect==0 );  /* Otherwise useTempTable is true */
-      sqlite3ExprCode(pParse, pList->a[keyColumn].pExpr, regRowid);
+      sqlite3ExprCode(pParse, pList->a[keyColumn].pExpr, regTrigRowid);
-      j1 = sqlite3VdbeAddOp1(v, OP_NotNull, regRowid);
+      j1 = sqlite3VdbeAddOp1(v, OP_NotNull, regTrigRowid);
-      sqlite3VdbeAddOp2(v, OP_Integer, -1, regRowid);
+      sqlite3VdbeAddOp2(v, OP_Integer, -1, regTrigRowid);
       sqlite3VdbeJumpHere(v, j1);
-      sqlite3VdbeAddOp1(v, OP_MustBeInt, regRowid);
+      sqlite3VdbeAddOp1(v, OP_MustBeInt, regTrigRowid);
     }
 
     /* Cannot have triggers on a virtual table. If it were possible,
@@ -807,9 +806,9 @@ void sqlite3Insert(
     if( !isView ){
       sqlite3TableAffinityStr(v, pTab);
     }
-    sqlite3VdbeAddOp3(v, OP_Insert, newIdx, regRec, regRowid);
+    sqlite3VdbeAddOp3(v, OP_Insert, newIdx, regRec, regTrigRowid);
     sqlite3ReleaseTempReg(pParse, regRec);
-    sqlite3ReleaseTempReg(pParse, regRowid);
+    sqlite3ReleaseTempReg(pParse, regTrigRowid);
     sqlite3ReleaseTempRange(pParse, regCols, pTab->nCol);
 
     /* Fire BEFORE or INSTEAD OF triggers */

src/pragma.c

@@ -11,7 +11,7 @@
 *************************************************************************
 ** This file contains code used to implement the PRAGMA command.
 **
-** $Id: pragma.c,v 1.195 2008/11/21 00:10:35 aswift Exp $
+** $Id: pragma.c,v 1.196 2008/12/10 17:20:01 drh Exp $
 */
 #include "sqliteInt.h"
 #include <ctype.h>
@@ -394,9 +394,7 @@ void sqlite3Pragma(
   ** Return the number of pages in the specified database.
   */
   if( sqlite3StrICmp(zLeft,"page_count")==0 ){
-    Vdbe *v;
     int iReg;
-    v = sqlite3GetVdbe(pParse);
     if( !v || sqlite3ReadSchema(pParse) ) goto pragma_out;
     sqlite3CodeVerifySchema(pParse, iDb);
     iReg = ++pParse->nMem;
@@ -1309,7 +1307,6 @@ void sqlite3Pragma(
       "unlocked", "shared", "reserved", "pending", "exclusive"
     };
     int i;
-    Vdbe *v = sqlite3GetVdbe(pParse);
     sqlite3VdbeSetNumCols(v, 2);
     pParse->nMem = 2;
     sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "database", SQLITE_STATIC);

src/prepare.c

@@ -13,7 +13,7 @@
 ** interface, and routines that contribute to loading the database schema
 ** from disk.
 **
-** $Id: prepare.c,v 1.101 2008/11/19 16:52:44 danielk1977 Exp $
+** $Id: prepare.c,v 1.102 2008/12/10 17:20:01 drh Exp $
 */
 #include "sqliteInt.h"
 #include <ctype.h>
@@ -547,7 +547,6 @@ static int sqlite3Prepare(
   for(i=0; i<db->nDb; i++) {
     Btree *pBt = db->aDb[i].pBt;
     if( pBt ){
-      int rc;
       rc = sqlite3BtreeSchemaLocked(pBt);
       if( rc ){
         const char *zDb = db->aDb[i].zName;

src/select.c

@@ -12,7 +12,7 @@
 ** This file contains C code routines that are called by the parser
 ** to handle SELECT statements in SQLite.
 **
-** $Id: select.c,v 1.490 2008/12/06 16:10:42 drh Exp $
+** $Id: select.c,v 1.491 2008/12/10 17:20:01 drh Exp $
 */
 #include "sqliteInt.h"
 
@@ -786,8 +786,8 @@ static void generateSortTail(
   int nColumn,      /* Number of columns of data */
   SelectDest *pDest /* Write the sorted results here */
 ){
-  int brk = sqlite3VdbeMakeLabel(v);
+  int addrBreak = sqlite3VdbeMakeLabel(v);     /* Jump here to exit loop */
-  int cont = sqlite3VdbeMakeLabel(v);
+  int addrContinue = sqlite3VdbeMakeLabel(v);  /* Jump here for next cycle */
   int addr;
   int iTab;
   int pseudoTab = 0;
@@ -805,8 +805,8 @@ static void generateSortTail(
     sqlite3VdbeAddOp2(v, OP_SetNumColumns, 0, nColumn);
     sqlite3VdbeAddOp2(v, OP_OpenPseudo, pseudoTab, eDest==SRT_Output);
   }
-  addr = 1 + sqlite3VdbeAddOp2(v, OP_Sort, iTab, brk);
+  addr = 1 + sqlite3VdbeAddOp2(v, OP_Sort, iTab, addrBreak);
-  codeOffset(v, p, cont);
+  codeOffset(v, p, addrContinue);
   regRow = sqlite3GetTempReg(pParse);
   regRowid = sqlite3GetTempReg(pParse);
   sqlite3VdbeAddOp3(v, OP_Column, iTab, pOrderBy->nExpr + 1, regRow);
@@ -864,13 +864,12 @@ static void generateSortTail(
 
   /* The bottom of the loop
   */
-  sqlite3VdbeResolveLabel(v, cont);
+  sqlite3VdbeResolveLabel(v, addrContinue);
   sqlite3VdbeAddOp2(v, OP_Next, iTab, addr);
-  sqlite3VdbeResolveLabel(v, brk);
+  sqlite3VdbeResolveLabel(v, addrBreak);
   if( eDest==SRT_Output || eDest==SRT_Coroutine ){
     sqlite3VdbeAddOp2(v, OP_Close, pseudoTab, 0);
   }
-
 }
 
 /*
@@ -1151,13 +1150,14 @@ static int selectColumnsFromExprList(
   int *pnCol,             /* Write the number of columns here */
   Column **paCol          /* Write the new column list here */
 ){
-  sqlite3 *db = pParse->db;
+  sqlite3 *db = pParse->db;   /* Database connection */
-  int i, j, cnt;
+  int i, j;                   /* Loop counters */
-  Column *aCol, *pCol;
+  int cnt;                    /* Index added to make the name unique */
-  int nCol;
+  Column *aCol, *pCol;        /* For looping over result columns */
-  Expr *p;
+  int nCol;                   /* Number of columns in the result set */
-  char *zName;
+  Expr *p;                    /* Expression for a single result column */
-  int nName;
+  char *zName;                /* Column name */
+  int nName;                  /* Size of name in zName[] */
 
   *pnCol = nCol = pEList->nExpr;
   aCol = *paCol = sqlite3DbMallocZero(db, sizeof(aCol[0])*nCol);
@@ -1171,18 +1171,18 @@ static int selectColumnsFromExprList(
       /* If the column contains an "AS <name>" phrase, use <name> as the name */
       zName = sqlite3DbStrDup(db, zName);
     }else{
-      Expr *pCol = p;
+      Expr *pColExpr = p;  /* The expression that is the result column name */
-      Table *pTab;
+      Table *pTab;         /* Table associated with this expression */
-      while( pCol->op==TK_DOT ) pCol = pCol->pRight;
+      while( pColExpr->op==TK_DOT ) pColExpr = pColExpr->pRight;
-      if( pCol->op==TK_COLUMN && (pTab = pCol->pTab)!=0 ){
+      if( pColExpr->op==TK_COLUMN && (pTab = pColExpr->pTab)!=0 ){
         /* For columns use the column name name */
-        int iCol = pCol->iColumn;
+        int iCol = pColExpr->iColumn;
         if( iCol<0 ) iCol = pTab->iPKey;
         zName = sqlite3MPrintf(db, "%s",
                  iCol>=0 ? pTab->aCol[iCol].zName : "rowid");
       }else{
         /* Use the original text of the column expression as its name */
-        Token *pToken = (pCol->span.z?&pCol->span:&pCol->token);
+        Token *pToken = (pColExpr->span.z?&pColExpr->span:&pColExpr->token);
         zName = sqlite3MPrintf(db, "%T", pToken);
       }
     }
@@ -1210,7 +1210,6 @@ static int selectColumnsFromExprList(
     pCol->zName = zName;
   }
   if( db->mallocFailed ){
-    int j;
     for(j=0; j<i; j++){
       sqlite3DbFree(db, aCol[j].zName);
     }
@@ -3747,13 +3746,13 @@ int sqlite3Select(
     ** GROUP BY clause.
     */
     if( pGroupBy ){
-      int i;                        /* Loop counter */
+      int k;                        /* Loop counter */
       struct ExprList_item *pItem;  /* For looping over expression in a list */
 
-      for(i=p->pEList->nExpr, pItem=p->pEList->a; i>0; i--, pItem++){
+      for(k=p->pEList->nExpr, pItem=p->pEList->a; k>0; k--, pItem++){
         pItem->iAlias = 0;
       }
-      for(i=pGroupBy->nExpr, pItem=pGroupBy->a; i>0; i--, pItem++){
+      for(k=pGroupBy->nExpr, pItem=pGroupBy->a; k>0; k--, pItem++){
         pItem->iAlias = 0;
       }
     }

src/vdbeaux.c

@@ -14,7 +14,7 @@
 ** to version 2.8.7, all this code was combined into the vdbe.c source file.
 ** But that file was getting too big so this subroutines were split out.
 **
-** $Id: vdbeaux.c,v 1.424 2008/12/09 02:51:24 drh Exp $
+** $Id: vdbeaux.c,v 1.425 2008/12/10 17:20:01 drh Exp $
 */
 #include "sqliteInt.h"
 #include <ctype.h>
@@ -1333,10 +1333,10 @@ static int vdbeCommit(sqlite3 *db, Vdbe *p){
 
     /* Select a master journal file name */
     do {
-      u32 random;
+      u32 iRandom;
       sqlite3DbFree(db, zMaster);
-      sqlite3_randomness(sizeof(random), &random);
+      sqlite3_randomness(sizeof(iRandom), &iRandom);
-      zMaster = sqlite3MPrintf(db, "%s-mj%08X", zMainFile, random&0x7fffffff);
+      zMaster = sqlite3MPrintf(db, "%s-mj%08X", zMainFile, iRandom&0x7fffffff);
       if( !zMaster ){
         return SQLITE_NOMEM;
       }

src/vtab.c

@@ -11,7 +11,7 @@
 *************************************************************************
 ** This file contains code used to help implement virtual tables.
 **
-** $Id: vtab.c,v 1.78 2008/11/13 19:12:36 danielk1977 Exp $
+** $Id: vtab.c,v 1.79 2008/12/10 17:20:01 drh Exp $
 */
 #ifndef SQLITE_OMIT_VIRTUALTABLE
 #include "sqliteInt.h"
@@ -762,8 +762,8 @@ FuncDef *sqlite3VtabOverloadFunction(
   Table *pTab;
   sqlite3_vtab *pVtab;
   sqlite3_module *pMod;
-  void (*xFunc)(sqlite3_context*,int,sqlite3_value**);
+  void (*xFunc)(sqlite3_context*,int,sqlite3_value**) = 0;
-  void *pArg;
+  void *pArg = 0;
   FuncDef *pNew;
   int rc = 0;
   char *zLowerName;