core/sql/common/Int64.h

/**********************************************************************
// @@@ START COPYRIGHT @@@
//
// Licensed to the Apache Software Foundation (ASF) under one
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#ifndef INT64_H
#define INT64_H
/* -*-C++-*-
**************************************************************************
*
* File:         Int64.h
* Description:  64-bit integer
* Created:      3/5/96
* Language:     C++
*
*
**************************************************************************
*/


#include <limits.h>
#include "Platform.h"

#ifndef LLONG_MAX
#define LLONG_MAX LONG_MAX
#endif

#ifndef LLONG_MIN
#define LLONG_MIN LONG_MIN
#endif

// ***********************************************************************
// Ancillary global functions
// ***********************************************************************

// -----------------------------------------------------------------------
// Convert an unsigned int to Int64.
// ----------------------------------------------------------------------- 
Int64 uint32ToInt64(UInt32 value);

// -----------------------------------------------------------------------
// Convert an Int64 to long.
// -----------------------------------------------------------------------
Int32 int64ToInt32(Int64 value);

// -----------------------------------------------------------------------
// Convert the integer from array of two longs, most significant first
// (Guardian-style LARGEINT datatype).
// -----------------------------------------------------------------------
Int64 uint32ArrayToInt64(const UInt32 array[2]);

// -----------------------------------------------------------------------
// Convert an array of two unsigned longs to the integer, most
// significant first.  This routine also takes care of the little
// endian and big endian problems.  Parameter tgt must point to
// an array of two (2) unsigned long elements.
// -----------------------------------------------------------------------
void convertInt64ToUInt32Array(const Int64 &src, UInt32 *tgt);

// -----------------------------------------------------------------------
// Convert the integer from ascii.
// -----------------------------------------------------------------------
Int32 aToInt32(const char* src);

// -----------------------------------------------------------------------
// Convert the integer from ascii.
// -----------------------------------------------------------------------
Int64 atoInt64(const char* src);

// -----------------------------------------------------------------------
// Convert the integer to ascii.
// -----------------------------------------------------------------------
void convertInt64ToAscii(const Int64 &src, char* tgt);

// -----------------------------------------------------------------------
// Convert the unsigned integer to ascii.
// -----------------------------------------------------------------------
void convertUInt64ToAscii(const UInt64 &src, char* tgt);

// -----------------------------------------------------------------------
// Convert the integer to double.
// -----------------------------------------------------------------------
double convertInt64ToDouble(const Int64 &src);

// -----------------------------------------------------------------------
// Convert the integer to double.
// -----------------------------------------------------------------------
double convertUInt64ToDouble(const UInt64 &src);

#endif /* INT64_H */