    /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
    /*
     * This file is part of the LibreOffice project.
     *
     * This Source Code Form is subject to the terms of the Mozilla Public
     * License, v. 2.0. If a copy of the MPL was not distributed with this
     * file, You can obtain one at http://mozilla.org/MPL/2.0/.
     *
     * This file incorporates work covered by the following license notice:
     *
     *   Licensed to the Apache Software Foundation (ASF) under one or more
     *   contributor license agreements. See the NOTICE file distributed
     *   with this work for additional information regarding copyright
     *   ownership. The ASF licenses this file to you under the Apache
     *   License, Version 2.0 (the "License"); you may not use this file
     *   except in compliance with the License. You may obtain a copy of
     *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
     */
    #ifndef INCLUDED_TOOLS_BIGINT_HXX
    #define INCLUDED_TOOLS_BIGINT_HXX

    #include <climits>
    #include <rtl/ustring.hxx>
    #include <tools/toolsdllapi.h>
    #include <tools/solar.h>

    class SvStream;

    #define MAX_DIGITS 8

    class Fraction;

    class SAL_WARN_UNUSED TOOLS_DLLPUBLIC BigInt
    {
    private:
        sal_Int32       nVal;
        sal_uInt16      nNum[MAX_DIGITS];
        sal_uInt8       nLen        : 5;    // current length
        bool            bIsNeg      : 1,    // Is Sign negative?
                        bIsBig      : 1,    // sal_True == BigInt
                        bIsSet      : 1;    // Not "Null" (not "not 0")

        TOOLS_DLLPRIVATE void MakeBigInt(BigInt const &);
        TOOLS_DLLPRIVATE void Normalize();
        TOOLS_DLLPRIVATE void Mult(BigInt const &, sal_uInt16);
        TOOLS_DLLPRIVATE void Div(sal_uInt16, sal_uInt16 &);
        TOOLS_DLLPRIVATE bool IsLess(BigInt const &) const;
        TOOLS_DLLPRIVATE void AddLong(BigInt &, BigInt &);
        TOOLS_DLLPRIVATE void SubLong(BigInt &, BigInt &);
        TOOLS_DLLPRIVATE void MultLong(BigInt const &, BigInt &) const;
        TOOLS_DLLPRIVATE void DivLong(BigInt const &, BigInt &) const;
        TOOLS_DLLPRIVATE void ModLong(BigInt const &, BigInt &) const;
        TOOLS_DLLPRIVATE bool ABS_IsLess(BigInt const &) const;

    public:
        BigInt()
            : nVal(0)
            , nLen(0)
            , bIsNeg(false)
            , bIsBig(false)
            , bIsSet(false)
        {
        }

        BigInt(sal_Int32 nValue)
            : nVal(nValue)
            , nLen(0)
            , bIsNeg(false)
            , bIsBig(false)
            , bIsSet(true)
        {
        }

    #if SAL_TYPES_SIZEOFLONG == 4
        BigInt(int nValue)
            : nVal(nValue)
            , nLen(0)
            , bIsNeg(false)
            , bIsBig(false)
            , bIsSet(true)
        {
        }
    #endif

        BigInt( double nVal );
        BigInt( sal_uInt32 nVal );
        BigInt( sal_Int64 nVal );
        BigInt( const BigInt& rBigInt );
        BigInt( const OUString& rString );

        operator        sal_Int16() const;
        operator        sal_uInt16() const;
        operator        sal_Int32() const;
        operator        sal_uInt32() const;
        operator        double() const;
    #if SAL_TYPES_SIZEOFLONG == 8
        operator        long() const;
    #endif

        bool            IsSet() const { return bIsSet; }
        bool            IsNeg() const;
        bool            IsZero() const;
        bool            IsLong() const { return !bIsBig; }

        void            Abs();

        BigInt&         operator  =( const BigInt& rVal );
        BigInt&         operator +=( const BigInt& rVal );
        BigInt&         operator -=( const BigInt& rVal );
        BigInt&         operator *=( const BigInt& rVal );
        BigInt&         operator /=( const BigInt& rVal );
        BigInt&         operator %=( const BigInt& rVal );

        BigInt&         operator  =( sal_Int32 nValue );

        friend inline   BigInt operator +( const BigInt& rVal1, const BigInt& rVal2 );
        friend inline   BigInt operator -( const BigInt& rVal1, const BigInt& rVal2 );
        friend inline   BigInt operator *( const BigInt& rVal1, const BigInt& rVal2 );
        friend inline   BigInt operator /( const BigInt& rVal1, const BigInt& rVal2 );
        friend inline   BigInt operator %( const BigInt& rVal1, const BigInt& rVal2 );

        TOOLS_DLLPUBLIC friend          bool operator==( const BigInt& rVal1, const BigInt& rVal2 );
        friend inline   bool operator!=( const BigInt& rVal1, const BigInt& rVal2 );
        TOOLS_DLLPUBLIC friend          bool operator< ( const BigInt& rVal1, const BigInt& rVal2 );
        TOOLS_DLLPUBLIC friend          bool operator> ( const BigInt& rVal1, const BigInt& rVal2 );
        friend inline   bool operator<=( const BigInt& rVal1, const BigInt& rVal2 );
        friend inline   bool operator>=( const BigInt& rVal1, const BigInt& rVal2 );

        friend class Fraction;
    };

    inline BigInt::operator sal_Int16() const
    {
        if ( !bIsBig && nVal >= SAL_MIN_INT16 && nVal <= SAL_MAX_INT16 )
            return static_cast<sal_Int16>(nVal);
        assert(false && "out of range");
        return 0;
    }

    inline BigInt::operator sal_uInt16() const
    {
        if ( !bIsBig && nVal >= 0 && nVal <= SAL_MAX_UINT16 )
            return static_cast<sal_uInt16>(nVal);
        assert(false && "out of range");
        return 0;
    }

    inline BigInt::operator sal_Int32() const
    {
        if (!bIsBig)
            return nVal;
        assert(false && "out of range");
        return 0;
    }

    inline BigInt::operator sal_uInt32() const
    {
        if ( !bIsBig && nVal >= 0 )
            return static_cast<sal_uInt32>(nVal);
        assert(false && "out of range");
        return 0;
    }

    #if SAL_TYPES_SIZEOFLONG == 8
    inline BigInt::operator long() const
    {
        // Clamp to int32 since long is int32 on Windows.
        if (!bIsBig)
            return nVal;
        assert(false && "out of range");
        return 0;
    }
    #endif

    inline BigInt& BigInt::operator =( sal_Int32 nValue )
    {
        bIsSet = true;
        bIsBig = false;
        nVal   = nValue;

        return *this;
    }

    inline bool BigInt::IsNeg() const
    {
        if ( !bIsBig )
            return (nVal < 0);
        else
            return bIsNeg;
    }

    inline bool BigInt::IsZero() const
    {
        if ( bIsBig )
            return false;
        else
            return (nVal == 0);
    }

    inline void BigInt::Abs()
    {
        if ( bIsBig )
            bIsNeg = false;
        else if ( nVal < 0 )
            nVal = -nVal;
    }

    inline BigInt operator+( const BigInt &rVal1, const BigInt &rVal2 )
    {
        BigInt aErg( rVal1 );
        aErg += rVal2;
        return aErg;
    }

    inline BigInt operator-( const BigInt &rVal1, const BigInt &rVal2 )
    {
        BigInt aErg( rVal1 );
        aErg -= rVal2;
        return aErg;
    }

    inline BigInt operator*( const BigInt &rVal1, const BigInt &rVal2 )
    {
        BigInt aErg( rVal1 );
        aErg *= rVal2;
        return aErg;
    }

    inline BigInt operator/( const BigInt &rVal1, const BigInt &rVal2 )
    {
        BigInt aErg( rVal1 );
        aErg /= rVal2;
        return aErg;
    }

    inline BigInt operator%( const BigInt &rVal1, const BigInt &rVal2 )
    {
        BigInt aErg( rVal1 );
        aErg %= rVal2;
        return aErg;
    }

    inline bool operator!=( const BigInt& rVal1, const BigInt& rVal2 )
    {
        return !(rVal1 == rVal2);
    }

    inline bool operator<=( const BigInt& rVal1, const BigInt& rVal2 )
    {
        return !( rVal1 > rVal2);
    }

    inline bool operator>=( const BigInt& rVal1, const BigInt& rVal2 )
    {
        return !(rVal1 < rVal2);
    }

    #endif

    /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

↑ V730 Not all members of a class are initialized inside the constructor. Consider inspecting: nNum.

↑ V730 Not all members of a class are initialized inside the constructor. Consider inspecting: nNum.

↑ V730 Not all members of a class are initialized inside the constructor. Consider inspecting: nNum.