**    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 1.887 2009/06/23 20:28:54 drh Exp $
*/
#ifndef _SQLITEINT_H_
#define _SQLITEINT_H_

/*
** Include the configuration header output by 'configure' if we're using the
** autoconf-based build
................................................................................
** not be counted as untested code.
*/
#if defined(SQLITE_COVERAGE_TEST)
# define ALWAYS(X)      (1)
# define NEVER(X)       (0)
#elif !defined(NDEBUG)
  int sqlite3Assert(void);
# define ALWAYS(X)      ((X)?1:sqlite3Assert())
# define NEVER(X)       ((X)?sqlite3Assert():0)
#else
# define ALWAYS(X)      (X)
# define NEVER(X)       (X)
#endif

/*
** The macro unlikely() is a hint that surrounds a boolean

**    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 1.888 2009/06/24 10:26:33 drh Exp $
*/
#ifndef _SQLITEINT_H_
#define _SQLITEINT_H_

/*
** Include the configuration header output by 'configure' if we're using the
** autoconf-based build
................................................................................
** not be counted as untested code.
*/
#if defined(SQLITE_COVERAGE_TEST)
# define ALWAYS(X)      (1)
# define NEVER(X)       (0)
#elif !defined(NDEBUG)
  int sqlite3Assert(void);
# define ALWAYS(X)      ((X)?1:(assert(0),0))
# define NEVER(X)       ((X)?(assert(0),1):0)
#else
# define ALWAYS(X)      (X)
# define NEVER(X)       (X)
#endif

/*
** The macro unlikely() is a hint that surrounds a boolean

**
*************************************************************************
** Utility functions used throughout sqlite.
**
** This file contains functions for allocating memory, comparing
** strings, and stuff like that.
**
** $Id: util.c,v 1.260 2009/06/17 16:20:04 drh Exp $
*/
#include "sqliteInt.h"
#include <stdarg.h>
#ifdef SQLITE_HAVE_ISNAN
# include <math.h>
#endif

................................................................................
** Routine needed to support the testcase() macro.
*/
#ifdef SQLITE_COVERAGE_TEST
void sqlite3Coverage(int x){
  static int dummy = 0;
  dummy += x;
}
#endif

/*
** Routine needed to support the ALWAYS() and NEVER() macros.
**
** The argument to ALWAYS() should always be true and the argument
** to NEVER() should always be false.  If either is not the case
** then this routine is called in order to throw an error.
**
** This routine only exists if assert() is operational.  It always
** throws an assert on its first invocation.  The variable has a long
** name to help the assert() message be more readable.  The variable
** is used to prevent a too-clever optimizer from optimizing out the
** entire call.
*/
#ifndef NDEBUG
int sqlite3Assert(void){
  static volatile int ALWAYS_was_false_or_NEVER_was_true = 0;
  assert( ALWAYS_was_false_or_NEVER_was_true );      /* Always fails */
  return ALWAYS_was_false_or_NEVER_was_true++;       /* Not Reached */
}
#endif

/*
** Return true if the floating point value is Not a Number (NaN).
**
** Use the math library isnan() function if compiled with SQLITE_HAVE_ISNAN.
** Otherwise, we have our own implementation that works on most systems.

**
*************************************************************************
** Utility functions used throughout sqlite.
**
** This file contains functions for allocating memory, comparing
** strings, and stuff like that.
**
** $Id: util.c,v 1.261 2009/06/24 10:26:33 drh Exp $
*/
#include "sqliteInt.h"
#include <stdarg.h>
#ifdef SQLITE_HAVE_ISNAN
# include <math.h>
#endif

................................................................................
** Routine needed to support the testcase() macro.
*/
#ifdef SQLITE_COVERAGE_TEST
void sqlite3Coverage(int x){
  static int dummy = 0;
  dummy += x;
}





















#endif

/*
** Return true if the floating point value is Not a Number (NaN).
**
** Use the math library isnan() function if compiled with SQLITE_HAVE_ISNAN.
** Otherwise, we have our own implementation that works on most systems.