IntValue.cpp

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// IntValue.cpp: implementation of the CIntValue class.
/*
* Copyright (c) 1996-2000 Erwin Coumans <coockie@acm.org>
*
* Permission to use, copy, modify, distribute and sell this software
* and its documentation for any purpose is hereby granted without fee,
* provided that the above copyright notice appear in all copies and
* that both that copyright notice and this permission notice appear
* in supporting documentation.  Erwin Coumans makes no
* representations about the suitability of this software for any
* purpose.  It is provided "as is" without express or implied warranty.
*
*/

#include "IntValue.h"
#include "ErrorValue.h"
#include "FloatValue.h"
#include "BoolValue.h"
#include "StringValue.h"
#include "VoidValue.h"

// Construction/Destruction

CIntValue::CIntValue()
/*
pre: false
effect: constructs a new CIntValue
*/
{
        
#ifdef _DEBUG_
        m_textval = "Int illegal constructor";
#endif
        m_pstrRep=NULL;
}



CIntValue::CIntValue(cInt innie)
/*
pre:
effect: constructs a new CIntValue containing cInt innie
*/
{
        m_int = innie;
        m_pstrRep=NULL;
}



CIntValue::CIntValue(cInt innie,const char *name,AllocationTYPE alloctype)
{
        m_int = innie;
        SetName(name);
        
        if (alloctype==CValue::STACKVALUE)
        {
                CValue::DisableRefCount();
        }
        m_pstrRep=NULL;
        
}



CIntValue::~CIntValue()
/*
pre:
effect: deletes the object
*/
{
        if (m_pstrRep)
                delete m_pstrRep;
}



CValue* CIntValue::Calc(VALUE_OPERATOR op, CValue *val)
/*
pre:
ret: a new object containing the result of applying operator op to this
object and val
*/
{
        //return val->CalcInt(op, this);
        switch (op) {
        case VALUE_POS_OPERATOR:
                return new CIntValue (m_int);
                break;
        case VALUE_NEG_OPERATOR:
                return new CIntValue (-m_int);
                break;
        case VALUE_NOT_OPERATOR:
                return new CErrorValue (op2str(op) + "only allowed on booleans");
                break;
        case VALUE_AND_OPERATOR:
        case VALUE_OR_OPERATOR:
                return new CErrorValue(val->GetText() + op2str(op) + "only allowed on booleans");
                break;
        default:
                return val->CalcFinal(VALUE_INT_TYPE, op, this);
                break;
        }
}



CValue* CIntValue::CalcFinal(VALUE_DATA_TYPE dtype, VALUE_OPERATOR op, CValue *val)
/*
pre: the type of val is dtype
ret: a new object containing the result of applying operator op to val and
this object
*/
{
        CValue *ret;
        
        switch(dtype) {
        case VALUE_EMPTY_TYPE:
        case VALUE_INT_TYPE:
                {
                        switch (op) {
                        case VALUE_MOD_OPERATOR:
                                ret = new CIntValue (((CIntValue *) val)->GetInt() % m_int);
                                break;
                        case VALUE_ADD_OPERATOR:
                                ret = new CIntValue (((CIntValue *) val)->GetInt() + m_int);
                                break;
                        case VALUE_SUB_OPERATOR:
                                ret = new CIntValue (((CIntValue *) val)->GetInt() - m_int);
                                break;
                        case VALUE_MUL_OPERATOR:
                                ret = new CIntValue (((CIntValue *) val)->GetInt() * m_int);
                                break;
                        case VALUE_DIV_OPERATOR:
                                if (m_int == 0)
                                {
                                        if (val->GetNumber() == 0)
                                        {
                                                ret = new CErrorValue("Not a Number");
                                        } else
                                        {
                                                ret = new CErrorValue("Division by zero");
                                        }
                                }
                                else
                                        ret = new CIntValue (((CIntValue *) val)->GetInt() / m_int);
                                break;
                        case VALUE_EQL_OPERATOR:
                                ret = new CBoolValue(((CIntValue *) val)->GetInt() == m_int);
                                break;
                        case VALUE_NEQ_OPERATOR:
                                ret = new CBoolValue(((CIntValue *) val)->GetInt() != m_int);
                                break;
                        case VALUE_GRE_OPERATOR:
                                ret = new CBoolValue(((CIntValue *) val)->GetInt() > m_int);
                                break;
                        case VALUE_LES_OPERATOR:
                                ret = new CBoolValue(((CIntValue *) val)->GetInt() < m_int);
                                break;
                        case VALUE_GEQ_OPERATOR:
                                ret = new CBoolValue(((CIntValue *) val)->GetInt() >= m_int);
                                break;
                        case VALUE_LEQ_OPERATOR:
                                ret = new CBoolValue(((CIntValue *) val)->GetInt() <= m_int);
                                break;
                        case VALUE_NEG_OPERATOR:
                                ret = new CIntValue (-m_int);
                                break;
                        case VALUE_POS_OPERATOR:
                                ret = new CIntValue (m_int);
                                break;
                        default:
                                ret = new CErrorValue("illegal operator. please send a bug report.");
                                break;
                        }
                        break;
                }
        case VALUE_FLOAT_TYPE:
                {
                        switch (op) {
                        case VALUE_MOD_OPERATOR:
                                ret = new CFloatValue(fmod(((CFloatValue *) val)->GetFloat(), m_int));
                                break;
                        case VALUE_ADD_OPERATOR:
                                ret = new CFloatValue (((CFloatValue *) val)->GetFloat() + m_int);
                                break;
                        case VALUE_SUB_OPERATOR:
                                ret = new CFloatValue (((CFloatValue *) val)->GetFloat() - m_int);
                                break;
                        case VALUE_MUL_OPERATOR:
                                ret = new CFloatValue (((CFloatValue *) val)->GetFloat() * m_int);
                                break;
                        case VALUE_DIV_OPERATOR:
                                if (m_int == 0)
                                        ret = new CErrorValue("Division by zero");
                                else
                                        ret = new CFloatValue (((CFloatValue *) val)->GetFloat() / m_int);
                                break;
                        case VALUE_EQL_OPERATOR:
                                ret = new CBoolValue(((CFloatValue *) val)->GetFloat() == m_int);
                                break;
                        case VALUE_NEQ_OPERATOR:
                                ret = new CBoolValue(((CFloatValue *) val)->GetFloat() != m_int);
                                break;
                        case VALUE_GRE_OPERATOR:
                                ret = new CBoolValue(((CFloatValue *) val)->GetFloat() > m_int);
                                break;
                        case VALUE_LES_OPERATOR:
                                ret = new CBoolValue(((CFloatValue *) val)->GetFloat() < m_int);
                                break;
                        case VALUE_GEQ_OPERATOR:
                                ret = new CBoolValue(((CFloatValue *) val)->GetFloat() >= m_int);
                                break;
                        case VALUE_LEQ_OPERATOR:
                                ret = new CBoolValue(((CFloatValue *) val)->GetFloat() <= m_int);
                                break;
                        default:
                                ret = new CErrorValue("illegal operator. please send a bug report.");
                                break;
                        }
                        break;
                }
        case VALUE_STRING_TYPE:
                {
                        switch(op) {
                        case VALUE_ADD_OPERATOR:
                                ret = new CStringValue(val->GetText() + GetText(),"");
                                break;
                        case VALUE_EQL_OPERATOR:
                        case VALUE_NEQ_OPERATOR:
                        case VALUE_GRE_OPERATOR:
                        case VALUE_LES_OPERATOR:
                        case VALUE_GEQ_OPERATOR:
                        case VALUE_LEQ_OPERATOR:
                                ret = new CErrorValue("[Cannot compare string with integer]" + op2str(op) + GetText());
                                break;
                        default:
                                ret =  new CErrorValue("[operator not allowed on strings]" + op2str(op) + GetText());
                                break;
                        }
                        break;
                }
        case VALUE_BOOL_TYPE:
                ret =  new CErrorValue("[operator not valid on boolean and integer]" + op2str(op) + GetText());
                break;
                /*
                case VALUE_EMPTY_TYPE:
                {
                switch(op) {
                
                  case VALUE_ADD_OPERATOR:
                  ret = new CIntValue (m_int);
                  break;
                  case VALUE_SUB_OPERATOR:
                  ret = new CIntValue (-m_int);
                  break;
                  default:
                  {
                  ret = new CErrorValue(op2str(op) +    GetText());
                  }
                  }
                  break;
                  }
                */
        case VALUE_ERROR_TYPE:
                ret = new CErrorValue(val->GetText() + op2str(op) +     GetText());
                break;
        default:
                ret = new CErrorValue("illegal type. contact your dealer (if any)");
                break;
        }
        return ret;
}



cInt CIntValue::GetInt()
/*
pre:
ret: the cInt stored in the object
*/
{
        return m_int;
}



double CIntValue::GetNumber()
{
        return (float) m_int;
}



const STR_String & CIntValue::GetText()
{
        if (!m_pstrRep)
                m_pstrRep=new STR_String();
        m_pstrRep->Format("%lld",m_int);
        
        return *m_pstrRep;
}



CValue* CIntValue::GetReplica() { 
        CIntValue* replica = new CIntValue(*this);
        replica->ProcessReplica();
        replica->m_pstrRep = NULL;
        
        return replica;
}



void CIntValue::SetValue(CValue* newval)
{       
        m_int = (cInt)newval->GetNumber(); 
        SetModified(true);
}


#ifdef WITH_PYTHON
PyObject* CIntValue::ConvertValueToPython()
{
        if((m_int > INT_MIN) && (m_int < INT_MAX))
                return PyLong_FromSsize_t(m_int);
        else
                return PyLong_FromLongLong(m_int);
}
#endif // WITH_PYTHON