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Attempt to fix the SQLite core so that no floating point operations are used

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anywhere if SQLITE_OMIT_FLOATING_POINT is defined at compile-time.  This
is useful to people who use SQLite on embedded processors that lack
floating point support. (CVS 2749)

FossilOrigin-Name: a0bdb584680ce6400d9e8c57db9d91197cc7b776
This commit is contained in:
drh
2005-10-13 02:09:49 +00:00
parent 54414bb449
commit b37df7b928
8 changed files with 83 additions and 52 deletions
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28
src/sqliteInt.h
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@@ -11,7 +11,7 @@
*************************************************************************
** Internal interface definitions for SQLite.
**
** @(#) $Id: sqliteInt.h,v 1.422 2005/10/06 16:53:15 drh Exp $
** @(#) $Id: sqliteInt.h,v 1.423 2005/10/13 02:09:50 drh Exp $
*/
#ifndef _SQLITEINT_H_
#define _SQLITEINT_H_
@@ -59,6 +59,18 @@
#include <assert.h>
#include <stddef.h>
/*
** If compiling for a processor that lacks floating point support,
** substitute integer for floating-point
*/
#ifdef SQLITE_OMIT_FLOATING_POINT
# define double sqlite_int64
# define LONGDOUBLE_TYPE sqlite_int64
# define SQLITE_BIG_DBL (0x7fffffffffffffff)
# define SQLITE_OMIT_DATETIME_FUNCS 1
# define SQLITE_OMIT_TRACE 1
#endif
/*
** The maximum number of in-memory pages to use for the main database
** table and for temporary tables. Internally, the MAX_PAGES and
@@ -128,20 +140,6 @@
*/
#define SQLITE_MAX_VARIABLE_NUMBER 999
/*
** When building SQLite for embedded systems where memory is scarce,
** you can define one or more of the following macros to omit extra
** features of the library and thus keep the size of the library to
** a minimum.
*/
/* #define SQLITE_OMIT_AUTHORIZATION 1 */
/* #define SQLITE_OMIT_MEMORYDB 1 */
/* #define SQLITE_OMIT_VACUUM 1 */
/* #define SQLITE_OMIT_DATETIME_FUNCS 1 */
/* #define SQLITE_OMIT_PROGRESS_CALLBACK 1 */
/* #define SQLITE_OMIT_AUTOVACUUM */
/* #define SQLITE_OMIT_ALTERTABLE */
/*
** Provide a default value for TEMP_STORE in case it is not specified
** on the command-line