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# ifndef CPPAD_DECLARE_INCLUDED
# define CPPAD_DECLARE_INCLUDED

/* --------------------------------------------------------------------------
CppAD: C++ Algorithmic Differentiation: Copyright (C) 2003-07 Bradley M. Bell

CppAD is distributed under multiple licenses. This distribution is under
the terms of the 
                    Common Public License Version 1.0.

A copy of this license is included in the COPYING file of this distribution.
Please visit http://www.coin-or.org/CppAD/ for information on other licenses.
-------------------------------------------------------------------------- */

namespace CppAD {
        // classes
        template <class Base> class AD;
        template <class Base> class ADFun;
        template <class Base> class ADTape;
        template <class Base> class VecAD;
        template <class Base> class TapeRec;
        template <class Base> class VecAD_reference;
        template <class Base> class ADDiscrete;

        // functions with one VecAD<Base> argument
        template <class Base> bool Parameter         (const VecAD<Base> &u);
        template <class Base> bool Variable          (const VecAD<Base> &u);
        
        // functions with one AD<Base> argument
        template <class Base> int  Integer           (const AD<Base> &u);
        template <class Base> bool Parameter         (const AD<Base> &u);
        template <class Base> bool Variable          (const AD<Base> &u);
        template <class Base> bool IdenticalZero     (const AD<Base> &u);
        template <class Base> bool IdenticalOne      (const AD<Base> &u);
        template <class Base> bool IdenticalPar      (const AD<Base> &u);
        template <class Base> bool LessThanZero      (const AD<Base> &u);
        template <class Base> bool LessThanOrZero    (const AD<Base> &u);
        template <class Base> bool GreaterThanZero   (const AD<Base> &u);
        template <class Base> bool GreaterThanOrZero (const AD<Base> &u);
        template <class Base> AD<Base> Var2Par       (const AD<Base> &u);

        // NearEqual
        template <class Base> bool NearEqual(
        const AD<Base> &x, const AD<Base> &y, const Base &r, const Base &a);

        template <class Base> bool NearEqual(
        const Base &x, const AD<Base> &y, const Base &r, const Base &a);

        template <class Base> bool NearEqual(
        const AD<Base> &x, const Base &y, const Base &r, const Base &a);
        
        // CondExp
        enum CompareOp 
        {CompareLt, CompareLe, CompareEq, CompareGe, CompareGt, CompareNe};

        template <class Base> AD<Base> CondExpOp (
                enum CompareOp         cop ,
                const AD<Base>       &left , 
                const AD<Base>      &right , 
                const AD<Base>   &trueCase , 
                const AD<Base>  &falseCase 
        );
        
        // IdenticalEqualPar
        template <class Base> 
        bool IdenticalEqualPar (const AD<Base> &u, const AD<Base> &v);
        
        // EqualOpSeq
        template <class Base> 
        bool EqualOpSeq (const AD<Base> &u, const AD<Base> &v);
        
        // PrintFor
        template <class Base>
        void PrintFor(const char *text, const AD<Base> &x);

        // Value
        template <class Base> Base Value(const AD<Base> &x);

        // Pow function
        template <class Base> AD<Base> pow
                (const AD<Base> &x, const AD<Base> &y);

        // output operator
        template <class Base> std::ostream&
        operator << (std::ostream &os, const AD<Base> &x);
        template <class Base> std::ostream&
        operator << (std::ostream &os, const VecAD_reference<Base> &e);
        template <class Base> std::ostream&
        operator << (std::ostream &os, const VecAD<Base> &vec);
}

# endif

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