Symaptic: os/kernelhwsrv/kerneltest/e32test/math/largeint.h@260cb5ec6c19

     1 // Copyright (c) 1995-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of the License "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 // e32test\math\largeint.h

    15 //

    16 //

    18 #ifndef __LARGEINT_H__

    19 #define __LARGEINT_H__

    20 #include <e32std.h>

    22 #define __ASSERT(c)		__ASSERT_DEBUG(c,User::Invariant())

    24 class TLargeIntBase

    25 	{

    26 public:

    27 	enum TMode {EZeroExtend,ESignExtend,ETruncate};

    28 	TLargeIntBase(TInt n);

    29 	TLargeIntBase(TInt n, TInt32 aSigned32);

    30 	TLargeIntBase(TInt n, TUint32 aUnsigned32);

    31 	TLargeIntBase(TInt n, const TLargeIntBase&, TMode);

    32 	TLargeIntBase(TInt n, const TUint32* aPtr);

    33 	TLargeIntBase(TInt n, const Int64& aSigned64);

    34 	TLargeIntBase(TInt n, const Uint64& aUnsigned64);

    35 public:

    36 	void Not();

    37 	void Neg();

    38 	void Abs();

    39 	void Inc();

    40 	void Dec();

    41 	TUint32 Lsl();

    42 	TUint32 Lsr();

    43 	TUint32 Asr();

    44 	void Lsl(TInt aCount);

    45 	void Lsr(TInt aCount);

    46 	void Asr(TInt aCount);

    47 	void Add(const TLargeIntBase&);

    48 	void Sub(const TLargeIntBase&);

    49 	void Mul(const TLargeIntBase&);

    50 	void DivU(const TLargeIntBase& aDivisor, TLargeIntBase& aRem);

    51 	void DivS(const TLargeIntBase& aDivisor, TLargeIntBase& aRem);

    52 	TInt CompareU(const TLargeIntBase&) const;

    53 	TInt CompareS(const TLargeIntBase&) const;

    54 	inline TLargeIntBase& operator++() {Inc(); return *this;}

    55 	inline TLargeIntBase& operator--() {Dec(); return *this;}

    56 public:

    57 	inline TBool operator==(const TLargeIntBase& a) const

    58 		{return CompareU(a)==0;}

    59 	inline TBool operator!=(const TLargeIntBase& a) const

    60 		{return CompareU(a)!=0;}

    61 	inline TBool Hi(const TLargeIntBase& a) const

    62 		{return CompareU(a)>0;}

    63 	inline TBool Hs(const TLargeIntBase& a) const

    64 		{return CompareU(a)>=0;}

    65 	inline TBool Lo(const TLargeIntBase& a) const

    66 		{return CompareU(a)<0;}

    67 	inline TBool Ls(const TLargeIntBase& a) const

    68 		{return CompareU(a)<=0;}

    69 	inline TBool Gt(const TLargeIntBase& a) const

    70 		{return CompareS(a)>0;}

    71 	inline TBool Ge(const TLargeIntBase& a) const

    72 		{return CompareS(a)>=0;}

    73 	inline TBool Lt(const TLargeIntBase& a) const

    74 		{return CompareS(a)<0;}

    75 	inline TBool Le(const TLargeIntBase& a) const

    76 		{return CompareS(a)<=0;}

    77 	inline TUint32& operator[](TInt a)

    78 		{__ASSERT(TUint32(a)<TUint32(iC)); return iX[a];}

    79 	inline TUint32 operator[](TInt a) const

    80 		{__ASSERT(TUint32(a)<TUint32(iC)); return iX[a];}

    81 public:

    82 	TInt iC;

    83 	TUint32 iX[1];

    84 	};

    86 template <TInt n>

    87 class TLargeInt : public TLargeIntBase

    88 	{

    89 public:

    90 	inline TLargeInt() : TLargeIntBase(n) {}

    91 	inline TLargeInt(TInt32 aSigned32) : TLargeIntBase(n,aSigned32) {}

    92 	inline TLargeInt(TUint32 aUnsigned32) : TLargeIntBase(n,aUnsigned32) {}

    93 	inline TLargeInt(const TLargeIntBase& aSrc, TMode aMode) : TLargeIntBase(n,aSrc,aMode) {}

    94 	inline TLargeInt(const TUint32* aPtr) : TLargeIntBase(n, aPtr) {}

    95 	inline TLargeInt(const Int64& aSigned64) : TLargeIntBase(n, aSigned64) {}

    96 	inline TLargeInt(const Uint64& aUnsigned64) : TLargeIntBase(n, aUnsigned64) {}

    97 	inline TLargeInt<2*n> LongMultU(const TLargeInt<n>& a) const

    98 		{TLargeInt<2*n> x(*this,EZeroExtend); TLargeInt<2*n> y(a,EZeroExtend); x.Mul(y); return x;}

    99 	inline TLargeInt<2*n> LongMultS(const TLargeInt<n>& a) const

   100 		{TLargeInt<2*n> x(*this,ESignExtend); TLargeInt<2*n> y(a,ESignExtend); x.Mul(y); return x;}

   101 public:

   102 	TUint32 iExtra[n-1];

   103 	};

   105 #define CHECK(X)	void __compile_assert(int __check[(X)?1:-1])

   107 #endif

author	sl
	Tue, 10 Jun 2014 14:32:02 +0200
changeset 1	260cb5ec6c19
permissions	-rw-r--r--