SQLite

** This file contains the C functions that implement date and time
** functions for SQLite.  
**
** There is only one exported symbol in this file - the function
** sqlite3RegisterDateTimeFunctions() found at the bottom of the file.
** All other code has file scope.
**
** $Id: date.c,v 1.91 2008/10/07 12:32:13 drh Exp $
** $Id: date.c,v 1.92 2008/10/13 15:35:09 drh Exp $
**
** SQLite processes all times and dates as Julian Day numbers.  The
** dates and times are stored as the number of days since noon
** in Greenwich on November 24, 4714 B.C. according to the Gregorian
** calendar system. 
**
** 1970-01-01 00:00:00 is JD 2440587.5

    FUNCTION(time,             -1, 0, 0, timeFunc      ),
    FUNCTION(datetime,         -1, 0, 0, datetimeFunc  ),
    FUNCTION(strftime,         -1, 0, 0, strftimeFunc  ),
    FUNCTION(current_time,      0, 0, 0, ctimeFunc     ),
    FUNCTION(current_timestamp, 0, 0, 0, ctimestampFunc),
    FUNCTION(current_date,      0, 0, 0, cdateFunc     ),
#else
    FUNCTION(current_time,      0, "%H:%M:%S",          0, currentTimeFunc),
    FUNCTION(current_timestamp, 0, "%Y-%m-%d",          0, currentTimeFunc),
    FUNCTION(current_date,      0, "%Y-%m-%d %H:%M:%S", 0, currentTimeFunc),
    STR_FUNCTION(current_time,      0, "%H:%M:%S",          0, currentTimeFunc),
    STR_FUNCTION(current_timestamp, 0, "%Y-%m-%d",          0, currentTimeFunc),
    STR_FUNCTION(current_date,      0, "%Y-%m-%d %H:%M:%S", 0, currentTimeFunc),
#endif
  };
  int i;
  FuncDefHash *pHash = &GLOBAL(FuncDefHash, sqlite3GlobalFunctions);
  FuncDef *aFunc = (FuncDef*)&GLOBAL(FuncDef, aDateTimeFuncs);

  for(i=0; i<ArraySize(aDateTimeFuncs); i++){
    sqlite3FuncDefInsert(pHash, &aFunc[i]);
  }
}

/*
** 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 1.783 2008/10/11 18:11:21 drh Exp $
** @(#) $Id: sqliteInt.h,v 1.784 2008/10/13 15:35:09 drh Exp $
*/
#ifndef _SQLITEINT_H_
#define _SQLITEINT_H_

/*
** Include the configuration header output by 'configure' if we're using the
** autoconf-based build

**     function likeFunc. Argument pArg is cast to a (void *) and made
**     available as the function user-data (sqlite3_user_data()). The
**     FuncDef.flags variable is set to the value passed as the flags
**     parameter.
*/
#define FUNCTION(zName, nArg, iArg, bNC, xFunc) \
  {nArg, SQLITE_UTF8, bNC*8, SQLITE_INT_TO_PTR(iArg), 0, xFunc, 0, 0, #zName}
#define STR_FUNCTION(zName, nArg, pArg, bNC, xFunc) \
  {nArg, SQLITE_UTF8, bNC*8, pArg, 0, xFunc, 0, 0, #zName}
#define LIKEFUNC(zName, nArg, arg, flags) \
  {nArg, SQLITE_UTF8, flags, (void *)arg, 0, likeFunc, 0, 0, #zName}
#define AGGREGATE(zName, nArg, arg, nc, xStep, xFinal) \
  {nArg, SQLITE_UTF8, nc*8, SQLITE_INT_TO_PTR(arg), 0, 0, xStep,xFinal, #zName}


/*

set rcsid {$Id: omittest.tcl,v 1.7 2008/08/22 13:57:39 pweilbacher Exp $}
set rcsid {$Id: omittest.tcl,v 1.8 2008/10/13 15:35:09 drh Exp $}

# Documentation for this script. This may be output to stderr
# if the script is invoked incorrectly.
set ::USAGE_MESSAGE {
This Tcl script is used to test the various compile time options 
available for omitting code (the SQLITE_OMIT_xxx options). It
should be invoked as follows:

# when doing so. For example:
#
#     run_quick_test /tmp/testdir {SQLITE_OMIT_TRIGGER SQLITE_OMIT_VIEW}
#
#
proc run_quick_test {dir omit_symbol_list} {
  # Compile the value of the OPTS Makefile variable.
  set opts "-DSQLITE_MEMDEBUG -DSQLITE_DEBUG" 
  set opts "-DSQLITE_MEMDEBUG -DSQLITE_DEBUG -DSQLITE_NO_SYNC" 
  if {$::tcl_platform(platform)=="windows"} {
    append opts " -DSQLITE_OS_WIN=1"
  } elseif {$::tcl_platform(platform)=="os2"} {
    append opts " -DSQLITE_OS_OS2=1"
  } else {
    append opts " -DSQLITE_OS_UNIX=1"
  }

    SQLITE_OMIT_CAST                   \
    SQLITE_OMIT_CHECK                  \
    SQLITE_OMIT_COMPLETE               \
    SQLITE_OMIT_COMPOUND_SELECT        \
    SQLITE_OMIT_CONFLICT_CLAUSE        \
    SQLITE_OMIT_DATETIME_FUNCS         \
    SQLITE_OMIT_DECLTYPE               \
    SQLITE_OMIT_DISKIO                 \
    off_SQLITE_OMIT_DISKIO                 \
    SQLITE_OMIT_EXPLAIN                \
    SQLITE_OMIT_FLAG_PRAGMAS           \
    SQLITE_OMIT_FLOATING_POINT         \
    SQLITE_OMIT_FOREIGN_KEY            \
    SQLITE_OMIT_GET_TABLE              \
    SQLITE_OMIT_GLOBALRECOVER          \
    SQLITE_OMIT_INCRBLOB               \
    SQLITE_OMIT_INTEGRITY_CHECK        \
    SQLITE_OMIT_LIKE_OPTIMIZATION      \
    SQLITE_OMIT_LOAD_EXTENSION         \
    SQLITE_OMIT_LOCALTIME              \
    SQLITE_OMIT_MEMORYDB               \
    SQLITE_OMIT_OR_OPTIMIZATION        \
    SQLITE_OMIT_PAGER_PRAGMAS          \
    SQLITE_OMIT_PARSER                 \
    SQLITE_OMIT_PRAGMA                 \
    SQLITE_OMIT_PROGRESS_CALLBACK      \
    SQLITE_OMIT_QUICKBALANCE           \
    SQLITE_OMIT_REINDEX                \
    SQLITE_OMIT_SCHEMA_PRAGMAS         \
    SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS \
    SQLITE_OMIT_SHARED_CACHE           \