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150 lines
2.5 KiB
150 lines
2.5 KiB
/*****************************************************************************/
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// Copyright 2006 Adobe Systems Incorporated
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// All Rights Reserved.
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//
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// NOTICE: Adobe permits you to use, modify, and distribute this file in
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// accordance with the terms of the Adobe license agreement accompanying it.
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/*****************************************************************************/
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/* $Id: //mondo/dng_sdk_1_4/dng_sdk/source/dng_rational.h#2 $ */
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/* $DateTime: 2012/07/31 22:04:34 $ */
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/* $Change: 840853 $ */
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/* $Author: tknoll $ */
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/** \file
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* Signed and unsigned rational data types.
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*/
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/*****************************************************************************/
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#ifndef __dng_rational__
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#define __dng_rational__
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/*****************************************************************************/
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#include "dng_types.h"
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/*****************************************************************************/
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class dng_srational
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{
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public:
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int32 n; // Numerator
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int32 d; // Denominator
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public:
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dng_srational ()
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: n (0)
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, d (0)
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{
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}
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dng_srational (int32 nn, int32 dd)
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: n (nn)
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, d (dd)
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{
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}
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void Clear ()
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{
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n = 0;
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d = 0;
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}
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bool IsValid () const
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{
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return d != 0;
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}
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bool NotValid () const
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{
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return !IsValid ();
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}
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bool operator== (const dng_srational &r) const
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{
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return (n == r.n) &&
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(d == r.d);
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}
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bool operator!= (const dng_srational &r) const
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{
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return !(*this == r);
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}
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real64 As_real64 () const;
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void Set_real64 (real64 x, int32 dd = 0);
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void ReduceByFactor (int32 factor);
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};
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/*****************************************************************************/
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class dng_urational
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{
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public:
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uint32 n; // Numerator
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uint32 d; // Denominator
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public:
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dng_urational ()
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: n (0)
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, d (0)
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{
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}
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dng_urational (uint32 nn, uint32 dd)
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: n (nn)
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, d (dd)
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{
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}
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void Clear ()
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{
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n = 0;
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d = 0;
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}
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bool IsValid () const
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{
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return d != 0;
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}
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bool NotValid () const
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{
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return !IsValid ();
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}
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bool operator== (const dng_urational &r) const
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{
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return (n == r.n) &&
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(d == r.d);
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}
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bool operator!= (const dng_urational &r) const
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{
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return !(*this == r);
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}
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real64 As_real64 () const;
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void Set_real64 (real64 x, uint32 dd = 0);
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void ReduceByFactor (uint32 factor);
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};
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/*****************************************************************************/
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#endif
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/*****************************************************************************/
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