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Overview
Comment:Minor code fixes in btree.c and pragma.c to help with watcom C. (CVS 1457)
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SHA1:143c502a59e727975f61c8d13b6c5a90dad038f3
User & Date: drh 2004-05-26 00:01:54
Context
2004-05-26
00:07
More changes to do with the new sqlite3_step() API. (CVS 1458) check-in: e8313825 user: danielk1977 tags: trunk
00:01
Minor code fixes in btree.c and pragma.c to help with watcom C. (CVS 1457) check-in: 143c502a user: drh tags: trunk
00:01
Add file legacy.c with old APIs. (CVS 1456) check-in: ae18fcb7 user: danielk1977 tags: trunk
Changes
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Changes to src/btree.c.

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** a legal notice, here is a blessing:
**
**    May you do good and not evil.
**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** $Id: btree.c,v 1.146 2004/05/22 02:55:23 drh Exp $
**
** This file implements a external (disk-based) database using BTrees.
** For a detailed discussion of BTrees, refer to
**
**     Donald E. Knuth, THE ART OF COMPUTER PROGRAMMING, Volume 3:
**     "Sorting And Searching", pages 473-480. Addison-Wesley
**     Publishing Company, Reading, Massachusetts.
................................................................................
  MemPage *pPage,                /* The page that contains the cell */
  unsigned char *pCell,          /* Complete text of the cell */
  const void *pKey, i64 nKey,    /* The key */
  const void *pData,int nData,   /* The data */
  int *pnSize                    /* Write cell size here */
){
  int nPayload;
  const void *pSrc;
  int nSrc, n, rc;
  int spaceLeft;
  MemPage *pOvfl = 0;
  MemPage *pToRelease = 0;
  unsigned char *pPrior;
  unsigned char *pPayload;
  Btree *pBt = pPage->pBt;







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** a legal notice, here is a blessing:
**
**    May you do good and not evil.
**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** $Id: btree.c,v 1.147 2004/05/26 00:01:54 drh Exp $
**
** This file implements a external (disk-based) database using BTrees.
** For a detailed discussion of BTrees, refer to
**
**     Donald E. Knuth, THE ART OF COMPUTER PROGRAMMING, Volume 3:
**     "Sorting And Searching", pages 473-480. Addison-Wesley
**     Publishing Company, Reading, Massachusetts.
................................................................................
  MemPage *pPage,                /* The page that contains the cell */
  unsigned char *pCell,          /* Complete text of the cell */
  const void *pKey, i64 nKey,    /* The key */
  const void *pData,int nData,   /* The data */
  int *pnSize                    /* Write cell size here */
){
  int nPayload;
  const u8 *pSrc;
  int nSrc, n, rc;
  int spaceLeft;
  MemPage *pOvfl = 0;
  MemPage *pToRelease = 0;
  unsigned char *pPrior;
  unsigned char *pPayload;
  Btree *pBt = pPage->pBt;

Changes to src/pragma.c.

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**    May you do good and not evil.
**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** This file contains code used to implement the PRAGMA command.
**
** $Id: pragma.c,v 1.29 2004/05/25 23:35:18 danielk1977 Exp $
*/
#include "sqliteInt.h"
#include <ctype.h>

/*
** Interpret the given string as a boolean value.
*/
................................................................................
      { OP_Lt,          0, 5,        0},
      { OP_AddImm,      1, 0,        0},
      { OP_Callback,    1, 0,        0},
      { OP_Halt,        0, 0,        0},
      { OP_AddImm,     -1, 0,        0},  /* 10 */
      { OP_Callback,    1, 0,        0}
    };

    if( pRight->z==pLeft->z ){
      sqlite3VdbeSetNumCols(v, 1);
      int addr = sqlite3VdbeAddOpList(v, ArraySize(getSync), getSync);
      sqlite3VdbeChangeP2(v, addr+3, addr+10);
    }else{
      int addr;
      int size = db->cache_size;
      if( size<0 ) size = -size;
      sqlite3BeginWriteOperation(pParse, 0, 0);
      sqlite3VdbeAddOp(v, OP_ReadCookie, 0, 2);
      sqlite3VdbeAddOp(v, OP_Dup, 0, 0);
      addr = sqlite3VdbeAddOp(v, OP_Integer, 0, 0);
      sqlite3VdbeAddOp(v, OP_Ne, 0, addr+3);







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**    May you do good and not evil.
**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** This file contains code used to implement the PRAGMA command.
**
** $Id: pragma.c,v 1.30 2004/05/26 00:01:54 drh Exp $
*/
#include "sqliteInt.h"
#include <ctype.h>

/*
** Interpret the given string as a boolean value.
*/
................................................................................
      { OP_Lt,          0, 5,        0},
      { OP_AddImm,      1, 0,        0},
      { OP_Callback,    1, 0,        0},
      { OP_Halt,        0, 0,        0},
      { OP_AddImm,     -1, 0,        0},  /* 10 */
      { OP_Callback,    1, 0,        0}
    };
    int addr;
    if( pRight->z==pLeft->z ){
      sqlite3VdbeSetNumCols(v, 1);
      addr = sqlite3VdbeAddOpList(v, ArraySize(getSync), getSync);
      sqlite3VdbeChangeP2(v, addr+3, addr+10);
    }else{

      int size = db->cache_size;
      if( size<0 ) size = -size;
      sqlite3BeginWriteOperation(pParse, 0, 0);
      sqlite3VdbeAddOp(v, OP_ReadCookie, 0, 2);
      sqlite3VdbeAddOp(v, OP_Dup, 0, 0);
      addr = sqlite3VdbeAddOp(v, OP_Integer, 0, 0);
      sqlite3VdbeAddOp(v, OP_Ne, 0, addr+3);