Help Me. I can't input the value to the matrix

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VisualC++

I am a student on a final project. I'm writing an apps that read from csv in win32 app. But I'm not using CStdioFile. I'm using ifstream. This is my code for reading

time_t long_time;
time(&long_time);
tm* st = localtime(&long_time);

string line;
char get;
int i;

fstream opn;
opn.open(path);
for(i = 1; i <= jumlahdata; i++)
{

    getline(opn, line,'\n');
    std::istringstream iss(line);

    iss >> st->tm_mon >> get >> st->tm_mday >> get >> st->tm_year >>
        st->tm_hour >> get >> st->tm_min >> get >> tinggi[i];
    st->tm_sec=0;
    st->tm_mon--;
    st->tm_year-=1900;
    waktu[i] = mktime(st);
}
opn.close()

This script work well in console app. But when I used it on the win32 app this script went error.

void CMainFrame::OnFileOpen40001()
{
    // TODO: Add your command handler code here
    CString str;
    //CRect rc;
    //string path;
        
    //CFile ifp;
    //fstream opn;
    CFileDialog FileDlg(true, _T("*.csv"), NULL,NULL, _T("Comma Separated Value|*.csv"));
    if (FileDlg.DoModal()==IDOK)
    {
        str=FileDlg.GetFolderPath();
        str+='\\'+FileDlg.GetFileName();
        //string path((LPCTSTR)str);
        // Convert a TCHAR string to a LPCSTR
        CT2CA pszConvertedAnsiString (str);
        // construct a std::string using the LPCSTR input
        //std::string path (pszConvertedAnsiString);
        string path (pszConvertedAnsiString);
        //opn.open(str);
        //ifp=fopen((str),"r");
        /*
        CFileException e;
        if(ifp.Open(str,CFile::modeRead))
            e.ReportError();
            */
        n = data::countdata(path);
        CString a;
        waktu = new int unsigned [n+1];
        tinggi = new double [n+1];
        data::readdata(path, waktu, tinggi, n);
        CClientDC dc(this);
        a.Format(_T(" Data tinggi = %d"),tinggi[1]);
        dc.TextOutW(250,250,str);
        dc.TextOutW(250,350,a);
        
    }
}

Please help me. I can't figure why the value won't get into the matrix called tinggi. But the value is right in the matrik called waktu.

[edit]
I write them.
They are declared in the separated header file. These are the code.

#pragma once
#include <iostream>
#include <string>
#include <fstream>
#include <conio.h>
#include <stdio.h>
#include <time.h>
#include <sstream>
using namespace std;

class data
{
public :
	int static countdata(string);
	void static readdata(string ,int unsigned *, double *,int);
	void static savedata(string , int unsigned *,double *, int);
	void static selectdt(unsigned int *, double *, int);
};

int data::countdata(string path)
{
	cout << "\n Menghitung data.";
	int n;
	fstream opn;
	opn.open(path);
	string tri;
	n=0;
	while(!opn.eof())
	{
		getline(opn,tri ,'\n');
		n++;
	}
	opn.close();
	n--;
	cout << "\n Data telah berhasil dihitung.";
	return(n);
}

void data::readdata(string path, int unsigned *waktu,double *tinggi, int jumlahdata)
{
	time_t long_time;
	time(&long_time);
	tm* st = localtime(&long_time);

	string line;
	char get;
	int i;
	double a;

	fstream opn;
	opn.open(path);
	for(i = 1; i <= jumlahdata; i++)
	{
		
		getline(opn, line,'\n');
		std::istringstream iss(line);
		
		iss >> st->tm_mon >> get >> st->tm_mday >> get >> st->tm_year >>
			st->tm_hour >> get >> st->tm_min >> get >> a;
		st->tm_sec=0;
		st->tm_mon--;
		st->tm_year-=1900;
		waktu[i] = mktime(st);
		tinggi[i] = a;
	}
	opn.close();
}

void data::savedata(string path, int unsigned *input1, double *input2, int jumlahdata)
{
	time_t long_time;
	time(&long_time);
	tm* st = localtime(&long_time);
	ofstream simp;
	simp.open(path);
	//string str;
	for(int i=1;i<=(jumlahdata);i++)
		{
			//format tanggal 8/18/2013 10:42,2.216
			long_time = input1[i];
			localtime_s(st,&long_time);
			// str = printf("%c,%d",asctime(st),datasel[i]);
			//simp <<datasel[i]<<','<<asctime(st);	
			simp << st->tm_mon+1 <<"/"<<st->tm_mday<<"/"<<st->tm_year+1900<<" " << st->tm_hour
				<<":"<<st->tm_min<<","<<input2[i]<<endl;
	}
	simp.close();
}

void data::selectdt(unsigned int *tanggal, double *tinggi, int jumlahdata)
{
	int i,j,k,l;
	unsigned int *copytanggal;
	double *copytinggi;
	copytanggal = new int unsigned [jumlahdata+1];
	copytinggi = new double [jumlahdata+1];

	for(i=1; i<= jumlahdata; i++)
	{
		copytanggal[i] = tanggal[i];
		copytinggi[i] = tinggi[i];
	}
	delete tanggal,tinggi;
	int n=0;
	for( i = copytanggal[1]; i <= copytanggal[jumlahdata]; i+=3600)
		{
			n++;
		}
	cout << "\n Jumlah baris = " << n;
	tanggal = new int unsigned [n+1];
	tinggi = new double [n+1];
	int temp(1);
	l=1;
	
	for(i = copytanggal[1]; i <= copytanggal[jumlahdata]; i+=3600)
	{
	for(j = l; j <= jumlahdata; j++)
			{
				if(i==copytanggal[j])
				{
					tanggal[temp] = copytanggal[j];
					tinggi[temp] = copytinggi[j];
					temp++;
					l=j;
					break;
				}	
			}
	}
	jumlahdata=n;
	cout << "\n Jumlah data baru = " << jumlahdata;
	/*
	cout << "\n\n Waktu awal dan akhir = " << copytanggal[1] << " dan " << copytanggal[jumlahdata];
	cout << "\n Selisih = " << copytanggal[jumlahdata]-copytanggal[1];
	cout << "\n Jumlah data = " << (copytanggal[jumlahdata]-copytanggal[1])/3600;
	*/
	delete copytanggal, copytinggi;
}

I am define this outside the Doc generated class by MFC Wizard.
[/edit]