SQLite

Check-in [485add38a1]
Login

Many hyperlinks are disabled.
Use anonymous login to enable hyperlinks.

Overview
Comment:Add likely() and unlikely() macros to the header file. They are not yet used for anything. (CVS 4562)
Downloads: Tarball | ZIP archive
Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA1: 485add38a1ef224732575f9998f06466dcc9742d
User & Date: drh 2007-11-27 02:38:01.000
Context
2007-11-27
14:46
Update the version number to 3.5.3. Fix some minor testing problems. (CVS 4563) (check-in: f4c8f2d191 user: drh tags: trunk)
02:38
Add likely() and unlikely() macros to the header file. They are not yet used for anything. (CVS 4562) (check-in: 485add38a1 user: drh tags: trunk)
2007-11-26
22:54
Use macro __DARWIN__ rather than __MACOS__ for conditional compilation of MacOSX specific features. Ticket #2780. (CVS 4561) (check-in: d0a4c2a363 user: drh tags: trunk)
Changes
Unified Diff Ignore Whitespace Patch
Changes to src/sqliteInt.h. 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17















18
19
20
21
22
23
24

/*
** 2001 September 15
**
** The author disclaims copyright to this source code.  In place of
** 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.
**
*************************************************************************
** Internal interface definitions for SQLite.
**
** @(#) $Id: sqliteInt.h,v 1.619 2007/11/26 22:54:27 drh Exp $
*/
#ifndef _SQLITEINT_H_
#define _SQLITEINT_H_
















/*
** These #defines should enable >2GB file support on Posix if the
** underlying operating system supports it.  If the OS lacks
** large file support, or if the OS is windows, these should be no-ops.
**
** Ticket #2739:  The _LARGEFILE_SOURCE macro must appear before any














|



>
>
>
>
>
>
>
>
>
>
>
>
>
>
>








1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39

/*
** 2001 September 15
**
** The author disclaims copyright to this source code.  In place of
** 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.
**
*************************************************************************
** Internal interface definitions for SQLite.
**
** @(#) $Id: sqliteInt.h,v 1.620 2007/11/27 02:38:01 drh Exp $
*/
#ifndef _SQLITEINT_H_
#define _SQLITEINT_H_

/*
** The macro unlikely() is a hint that surrounds a boolean
** expression that is usually false.  Macro likely() surrounds
** a boolean expression that is usually true.  GCC is able to
** use these hints to generate better code, sometimes.
*/
#if defined(__GNUC__)
# define likely(X)    __builtin_expect((X),1)
# define unlikely(X)  __builtin_expect((X),0)
#else
# define likely(X)    !!(X)
# define unlikely(X)  !!(X)
#endif


/*
** These #defines should enable >2GB file support on Posix if the
** underlying operating system supports it.  If the OS lacks
** large file support, or if the OS is windows, these should be no-ops.
**
** Ticket #2739:  The _LARGEFILE_SOURCE macro must appear before any
︙︙