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Comment:Make sure zeroblob() works with the concatenation operator. Ticket #2379. (CVS 4028)
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SHA1: 6e19ef758207cedd6db8b2796ef5d4d688cc0b62
User & Date: drh 2007-05-23 06:31:39.000
Context
2007-05-23
07:20
Additional comments ono the SQLITE_MIXED_ENDIAN_64BIT_FLOAT issue. (CVS 4029) (check-in: dd48a31e67 user: drh tags: trunk)
06:31
Make sure zeroblob() works with the concatenation operator. Ticket #2379. (CVS 4028) (check-in: 6e19ef7582 user: drh tags: trunk)
06:25
Increase the number of repititions in crash.test. (CVS 4027) (check-in: f3c3412afa user: danielk1977 tags: trunk)
Changes
Side-by-Side Diff Ignore Whitespace Patch
Changes to src/vdbe.c.
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**
** 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 1.622 2007/05/17 16:38:30 danielk1977 Exp $
** $Id: vdbe.c,v 1.623 2007/05/23 06:31:39 drh Exp $
*/
#include "sqliteInt.h"
#include "os.h"
#include <ctype.h>
#include <math.h>
#include "vdbeInt.h"
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  nByte = 0;
  for(i=0; i<nField; i++, pTerm++){
    assert( pOp->p2==0 || (pTerm->flags&MEM_Str) );
    if( pTerm->flags&MEM_Null ){
      nByte = -1;
      break;
    }
    ExpandBlob(pTerm);
    Stringify(pTerm, encoding);
    nByte += pTerm->n;
  }

  if( nByte<0 ){
    /* If nByte is less than zero, then there is a NULL value on the stack.
    ** In this case just pop the values off the stack (if required) and
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Changes to test/zeroblob.test.
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#
#***********************************************************************
# This file implements regression tests for SQLite library.  The
# focus of this file is testing of the zero-filled blob functionality
# including the sqlite3_bind_zeroblob(), sqlite3_result_zeroblob(),
# and the built-in zeroblob() SQL function.
#
# $Id: zeroblob.test,v 1.3 2007/05/17 06:44:29 danielk1977 Exp $
# $Id: zeroblob.test,v 1.4 2007/05/23 06:31:39 drh Exp $

set testdir [file dirname $argv0]
source $testdir/tester.tcl

ifcapable !incrblob {
  finish_test
  return
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    SELECT count(DISTINCT a) FROM (
      SELECT x'00000000000000000000' AS a
      UNION ALL
      SELECT zeroblob(10) AS a
    )
  }
} {1}

# Concatentation works with zeroblob
#
do_test zeroblob-4.1 {
  execsql {
    SELECT hex(zeroblob(2) || x'61')
  }
} {000061}
  

finish_test