简单的翻页程序

/*
页号正确取值范围是1..pagetotal 如果pageindex=0返回pagetotal
希望每页记录数,如果pagesize = 0 表明用户想一次性获取所有数据
数据总页数,系统给调用方返回数据总页数
*/

int Toolkit::getRowNumStartEnd(int &iRowStart,int &iRowEnd,int iCountNum,const ::CC::PageObject& inpageObject,::CC::PageObject& outpageObject)
{
        ACE_DEBUG( ( LM_ERROR, "[%D %T] [INFO] [ODB](%N:%l)\t iPageindex[%d]iPagesize[%d]iPagetotal[%d] \n",
                                inpageObject.iPageindex,
                                inpageObject.iPagesize,
                                inpageObject.iPagetotal) );
        if ( inpageObject.iPagesize == 0 )
        {
                iRowStart=1;
                iRowEnd=iCountNum;

        }else{
                outpageObject = inpageObject;
                outpageObject.iPagetotal=iCountNum/inpageObject.iPagesize;
                if (iCountNum%inpageObject.iPagesize>0)
                {
                        outpageObject.iPagetotal=outpageObject.iPagetotal+1;
                }
                if (inpageObject.iPageindex == 0)
                {
                        return 100;
                }

                if ( inpageObject.iPageindex>outpageObject.iPagetotal || inpageObject.iPageindex < 0 )
                {
                        outpageObject.iPageindex=outpageObject.iPagetotal;
                }

                iRowStart=outpageObject.iPageindex*inpageObject.iPagesize-inpageObject.iPagesize+1;
                if (outpageObject.iPageindex*inpageObject.iPagesize>iCountNum)
                {
                        iRowEnd=iCountNum;
                }else{
                        iRowEnd=outpageObject.iPageindex*inpageObject.iPagesize;
                }
        }
        return CC::iCcok;
}