--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/symport/e32test/math/largeint.h	Thu Jun 25 15:59:54 2009 +0100
@@ -0,0 +1,107 @@
+// Copyright (c) 1995-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of the License "Symbian Foundation License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.symbianfoundation.org/legal/sfl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+// e32test\math\largeint.h
+// 
+//
+
+#ifndef __LARGEINT_H__
+#define __LARGEINT_H__
+#include <e32std.h>
+
+#define __ASSERT(c)		__ASSERT_DEBUG(c,User::Invariant())
+
+class TLargeIntBase
+	{
+public:
+	enum TMode {EZeroExtend,ESignExtend,ETruncate};
+	TLargeIntBase(TInt n);
+	TLargeIntBase(TInt n, TInt32 aSigned32);
+	TLargeIntBase(TInt n, TUint32 aUnsigned32);
+	TLargeIntBase(TInt n, const TLargeIntBase&, TMode);
+	TLargeIntBase(TInt n, const TUint32* aPtr);
+	TLargeIntBase(TInt n, const Int64& aSigned64);
+	TLargeIntBase(TInt n, const Uint64& aUnsigned64);
+public:
+	void Not();
+	void Neg();
+	void Abs();
+	void Inc();
+	void Dec();
+	TUint32 Lsl();
+	TUint32 Lsr();
+	TUint32 Asr();
+	void Lsl(TInt aCount);
+	void Lsr(TInt aCount);
+	void Asr(TInt aCount);
+	void Add(const TLargeIntBase&);
+	void Sub(const TLargeIntBase&);
+	void Mul(const TLargeIntBase&);
+	void DivU(const TLargeIntBase& aDivisor, TLargeIntBase& aRem);
+	void DivS(const TLargeIntBase& aDivisor, TLargeIntBase& aRem);
+	TInt CompareU(const TLargeIntBase&) const;
+	TInt CompareS(const TLargeIntBase&) const;
+	inline TLargeIntBase& operator++() {Inc(); return *this;}
+	inline TLargeIntBase& operator--() {Dec(); return *this;}
+public:
+	inline TBool operator==(const TLargeIntBase& a) const
+		{return CompareU(a)==0;}
+	inline TBool operator!=(const TLargeIntBase& a) const
+		{return CompareU(a)!=0;}
+	inline TBool Hi(const TLargeIntBase& a) const
+		{return CompareU(a)>0;}
+	inline TBool Hs(const TLargeIntBase& a) const
+		{return CompareU(a)>=0;}
+	inline TBool Lo(const TLargeIntBase& a) const
+		{return CompareU(a)<0;}
+	inline TBool Ls(const TLargeIntBase& a) const
+		{return CompareU(a)<=0;}
+	inline TBool Gt(const TLargeIntBase& a) const
+		{return CompareS(a)>0;}
+	inline TBool Ge(const TLargeIntBase& a) const
+		{return CompareS(a)>=0;}
+	inline TBool Lt(const TLargeIntBase& a) const
+		{return CompareS(a)<0;}
+	inline TBool Le(const TLargeIntBase& a) const
+		{return CompareS(a)<=0;}
+	inline TUint32& operator[](TInt a)
+		{__ASSERT(TUint32(a)<TUint32(iC)); return iX[a];}
+	inline TUint32 operator[](TInt a) const
+		{__ASSERT(TUint32(a)<TUint32(iC)); return iX[a];}
+public:
+	TInt iC;
+	TUint32 iX[1];
+	};
+
+template <TInt n>
+class TLargeInt : public TLargeIntBase
+	{
+public:
+	inline TLargeInt() : TLargeIntBase(n) {}
+	inline TLargeInt(TInt32 aSigned32) : TLargeIntBase(n,aSigned32) {}
+	inline TLargeInt(TUint32 aUnsigned32) : TLargeIntBase(n,aUnsigned32) {}
+	inline TLargeInt(const TLargeIntBase& aSrc, TMode aMode) : TLargeIntBase(n,aSrc,aMode) {}
+	inline TLargeInt(const TUint32* aPtr) : TLargeIntBase(n, aPtr) {}
+	inline TLargeInt(const Int64& aSigned64) : TLargeIntBase(n, aSigned64) {}
+	inline TLargeInt(const Uint64& aUnsigned64) : TLargeIntBase(n, aUnsigned64) {}
+	inline TLargeInt<2*n> LongMultU(const TLargeInt<n>& a) const
+		{TLargeInt<2*n> x(*this,EZeroExtend); TLargeInt<2*n> y(a,EZeroExtend); x.Mul(y); return x;}
+	inline TLargeInt<2*n> LongMultS(const TLargeInt<n>& a) const
+		{TLargeInt<2*n> x(*this,ESignExtend); TLargeInt<2*n> y(a,ESignExtend); x.Mul(y); return x;}
+public:
+	TUint32 iExtra[n-1];
+	};
+
+#define CHECK(X)	void __compile_assert(int __check[(X)?1:-1])
+
+#endif