SQLite: Check-in [88e12cac]

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Overview

Comment:	Use memcpy() instead of casting to copy the content of a long long int into a double. Ticket #3101. (CVS 5117)
Downloads:	Tarball \| ZIP archive \| SQL archive
Timelines:	family \| ancestors \| descendants \| both \| trunk
Files:	files \| file ages \| folders
SHA1:	88e12caca99d1d54cfe6228cb0de1eccc93fcc74
User & Date:	drh 2008-05-11 17:22:01

Context

2008-05-12
00:29		Correctly test DosWrite() for failure return code (CVS 5118) (check-in: 3eff0ef2 user: pweilbacher tags: trunk)
2008-05-11
17:22		Use memcpy() instead of casting to copy the content of a long long int into a double. Ticket #3101. (CVS 5117) (check-in: 88e12cac user: drh tags: trunk)
11:07		New test cases to verify that SQLite handles bound NaN, +Inf, and -Inf floating point values correctly. Improvements to the text->real conversion routine so that it generates +Inf and -Inf at appropriate times. Tickets #3101 and #3060. (CVS 5116) (check-in: 3ff2f1cd user: drh tags: trunk)

Changes

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Changes to src/test1.c.

**    May you share freely, never taking more than you give.
**
*************************************************************************
** Code for testing all sorts of SQLite interfaces.  This code
** is not included in the SQLite library.  It is used for automated
** testing of the SQLite library.
**
** $Id: test1.c,v 1.302 2008/05/11 11:07:07 drh Exp $
*/
#include "sqliteInt.h"
#include "tcl.h"
#include <stdlib.h>
#include <string.h>

/*
................................................................................
  zVal = Tcl_GetString(objv[3]);
  for(i=0; i<sizeof(aSpecialFp)/sizeof(aSpecialFp[0]); i++){
    if( strcmp(aSpecialFp[i].zName, zVal)==0 ){
      sqlite3_uint64 x;
      x = aSpecialFp[i].iUpper;
      x <<= 32;
      x |= aSpecialFp[i].iLower;
      value = *(double*)(char*)&x;


      break;
    }
  }
  if( i>=sizeof(aSpecialFp)/sizeof(aSpecialFp[0]) &&
         Tcl_GetDoubleFromObj(interp, objv[3], &value) ){
    return TCL_ERROR;
  }

**    May you share freely, never taking more than you give.
**
*************************************************************************
** Code for testing all sorts of SQLite interfaces.  This code
** is not included in the SQLite library.  It is used for automated
** testing of the SQLite library.
**
** $Id: test1.c,v 1.303 2008/05/11 17:22:01 drh Exp $
*/
#include "sqliteInt.h"
#include "tcl.h"
#include <stdlib.h>
#include <string.h>

/*
................................................................................
  zVal = Tcl_GetString(objv[3]);
  for(i=0; i<sizeof(aSpecialFp)/sizeof(aSpecialFp[0]); i++){
    if( strcmp(aSpecialFp[i].zName, zVal)==0 ){
      sqlite3_uint64 x;
      x = aSpecialFp[i].iUpper;
      x <<= 32;
      x |= aSpecialFp[i].iLower;
      assert( sizeof(value)==8 );
      assert( sizeof(x)==8 );
      memcpy(&value, &x, 8);
      break;
    }
  }
  if( i>=sizeof(aSpecialFp)/sizeof(aSpecialFp[0]) &&
         Tcl_GetDoubleFromObj(interp, objv[3], &value) ){
    return TCL_ERROR;
  }