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