--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/kerneltest/e32test/math/largeint.h Mon Oct 19 15:55:17 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 "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-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