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Overview
Comment:Update the sqlite3_vfs_register() documentation to make the behavior undefined for VFSes with a NULL or empty string as the name or with duplicate names. (CVS 4310)
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SHA1: e7a98b48384ea581d98dad5118ee33468d526c62
User & Date: drh 2007-08-28 15:21:45.000
Context
2007-08-28
15:47
Updates to the sqlite3_open() documentation. Method the magic :memory: filename. Ticket #2591. (CVS 4311) (check-in: 5f55b2fc4e user: drh tags: trunk)
15:21
Update the sqlite3_vfs_register() documentation to make the behavior undefined for VFSes with a NULL or empty string as the name or with duplicate names. (CVS 4310) (check-in: e7a98b4838 user: drh tags: trunk)
08:19
Use "affected" instead of "effected". Ticket #2589. No code changes. (CVS 4309) (check-in: 4c5631ce34 user: danielk1977 tags: trunk)
Changes
Unified Diff Ignore Whitespace Patch
Changes to src/sqlite.h.in.
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** on how SQLite interfaces are suppose to operate.
**
** The name of this file under configuration management is "sqlite.h.in".
** The makefile makes some minor changes to this file (such as inserting
** the version number) and changes its name to "sqlite3.h" as
** part of the build process.
**
** @(#) $Id: sqlite.h.in,v 1.244 2007/08/27 21:10:36 drh Exp $
*/
#ifndef _SQLITE3_H_
#define _SQLITE3_H_
#include <stdarg.h>     /* Needed for the definition of va_list */

/*
** Make sure we can call this stuff from C++.








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** on how SQLite interfaces are suppose to operate.
**
** The name of this file under configuration management is "sqlite.h.in".
** The makefile makes some minor changes to this file (such as inserting
** the version number) and changes its name to "sqlite3.h" as
** part of the build process.
**
** @(#) $Id: sqlite.h.in,v 1.245 2007/08/28 15:21:45 drh Exp $
*/
#ifndef _SQLITE3_H_
#define _SQLITE3_H_
#include <stdarg.h>     /* Needed for the definition of va_list */

/*
** Make sure we can call this stuff from C++.
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** pointer is returned.  If zVfsName is NULL then the default 
** VFS is returned.
**
** New VFSes are registered with sqlite3_vfs_register().  Each
** new VFS becomes the default VFS if the makeDflt flag is set.
** The same VFS can be registered multiple times without injury.
** To make an existing VFS into the default VFS, register it again
** with the makeDflt flag set.



** 
** Unregister a VFS with the sqlite3_vfs_unregister() interface.
** If the default VFS is unregistered, another VFS is chosen as
** the default.  The choice for the new VFS is arbitrary.
*/
sqlite3_vfs *sqlite3_vfs_find(const char *zVfsName);
int sqlite3_vfs_register(sqlite3_vfs*, int makeDflt);








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** pointer is returned.  If zVfsName is NULL then the default 
** VFS is returned.
**
** New VFSes are registered with sqlite3_vfs_register().  Each
** new VFS becomes the default VFS if the makeDflt flag is set.
** The same VFS can be registered multiple times without injury.
** To make an existing VFS into the default VFS, register it again
** with the makeDflt flag set.  If two different VFSes with the
** same name are registered, the behavior is undefined.  If a
** VFS is registered with a name that is NULL or an empty string,
** then the behavior is undefined.
** 
** Unregister a VFS with the sqlite3_vfs_unregister() interface.
** If the default VFS is unregistered, another VFS is chosen as
** the default.  The choice for the new VFS is arbitrary.
*/
sqlite3_vfs *sqlite3_vfs_find(const char *zVfsName);
int sqlite3_vfs_register(sqlite3_vfs*, int makeDflt);
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