For loop not executing proper number of times

[prads]

Hello,
I have written the below code, which should rotate within the first "for" loop 50 times but dont know for what reason its iterating only 49 times..? Can anyone pls find out what the mistake is and reply with correction. U can also run this on ur compiler and check!

//<code>

#include <iostream.h>
int main()
{
    //clrscr();
    float earlylatespc=0.5,remcodephase=0,tcode;
    int blksize=50,i_ecode=0,count1=0,tcode2,cacode[15]={1,2,1,9,4,5,4,5,7,7,8,7,5,4,7};
    int   earlycode[50];
    float codephasestep,check;
    float ptcode[1000];
    int promptcode[50],i_pcode=0,i_tcode=0;
 
codephasestep=(float)1023/(float)38192;
check=((blksize-1)*codephasestep+remcodephase);
            cout<<"check is"<<check<<endl;
            cout<<endl;
            for(tcode=remcodephase;tcode<=check;)
            {
                                ptcode[i_tcode]=tcode;                                                                                          
            tcode2=ceil(tcode)+1;
            promptcode[i_pcode]=cacode[tcode2];     //check here later coz may be u should make it cacode[tcode2-1];                                
           i_pcode+=1;
           count1+=1; //to check no of iterations
           i_tcode+=1;
            tcode=tcode+codephasestep;
            cout<<"tcodes are"<<tcode<<endl;
            }
            cout<<endl;
            cout<<"final tcode"<<tcode<<endl;  
            cout<<"final count"<<count1<<endl;  
            cout<<endl; 
            for(i_pcode=0;i_pcode<count1;i_pcode++)
            {
              cout<<promptcode[i_pcode]<<endl;                       
 
            }
            cout<<endl;
            for(i_tcode=0;i_tcode<count1;i_tcode++)
            {
              cout<<ptcode[i_tcode]<<endl;                       
 
            }
            cout<<"count"<<count1<<endl;
            cout<<"the 50th term is"<<ptcode[blksize]<<endl;
            //remCodePhase = (tcode(blksize) + codePhaseStep) - 1023.0;
 
 
            remcodephase = (ptcode[blksize] + codephasestep) ;//- 1023.0;         // taken as ptcode[] instead of tcode[]
                                                                                  //He wants the last term
    cout<<"remcodephase is"<<remcodephase<<endl;
 
 
    getchar();
    return 0;
    }

If everything works fine, the output of remcodephase should be "1.3392857"
Thanks,
prads

[beacon]

Have you used any breakpoints to determine what the values of some of your variables are to help you debug this? I didn't compile it, but just from taking a glance at it, and keep in mind that I haven't been using C++ for very long, it would appear as though perhaps your variables either haven't been initialized to the value that is needed to obtain the 50th position.

If you initialized to zero, remember that the 50th position will actually be the 49th memory location. If you initialize to 1 then 50 will be the 50th position. I could be way off base, but I'm definitely not trying to be condescending if you knew that already.

If you walk through your program using the breakpoints, you may notice that one of your values should be something else at a given location and that is what is throwing off the calculation.

Hope this helps.