Thread: Why does it only loop three times??

Code:

/////////////////////////////////////////////////////////
// INCLUDES
#include <iostream.h>   // delcare the header files
#include <fstream.h>    // to be included
/////////////////////////////////////////////////////////



/////////////////////////////////////////////////////////
// DEFINES
#define DEAD_BAND_LIMIT 8
/////////////////////////////////////////////////////////



/////////////////////////////////////////////////////////
// FILE STREAMS
ifstream fin ;     // declare the input file stream
ofstream fecgA ;   // delcare the output file stream for ECGA
ofstream fecgB;    // declare the output file stream for ECGB
/////////////////////////////////////////////////////////

/////////////////////////////////////////////////////////
//  PROTOTYPES
void decodeData (int counter, int &relativeA, int &relativeB,
							int datastoreA[], int datastoreB[]) ;
/////////////////////////////////////////////////////////



/////////////////////////////////////////////////////////
//  used to limit the stop values from being wrapped

void limitValues(int &relativeA, int &relativeB)
{
	// Limit values for next iteration...
	if(relativeA > (4095 - 503))
	{
		relativeA = 4095 - 503 ;
	}
	else if(relativeA < 503)
	{
		relativeA = 503 ;
	}
	if(relativeB > (4095 - 503))
	{
		relativeB = 4095 - 503 ;
	}
	else if(relativeB < 503)
	{
		relativeB = 503 ;
	}
}
/////////////////////////////////////////////////////////



/////////////////////////////////////////////////////////
// getData is called from the main, it is used to read in 
// data from the ECG dat file and un-encodes the relative 
// data into absolute data .. 

void getData (int &counter, char block[], int &relativeA, int &relativeB, 
										int datastoreA[], int datastoreB[])
{
	char holdComma ;  // used to handle the commas in the file
	
	// the tempX variables are used to hold the value of
	// the encoded data while the absolute value is calculated
	 

	fin >> block ;
	//cout << block << endl;

	fin >> relativeA ;
	//cout << relativeA << endl ;

	fin >> holdComma ;
	//cout << holdComma ;

	fin >> relativeB ;
	//cout << relativeB << endl ;
	
	datastoreA[0] = relativeA;
	datastoreB[0] = relativeB;

	while (counter<=191)
	{
		decodeData (counter, relativeA, relativeB, datastoreA, datastoreB) ;
		counter ++ ;
	}
}
/////////////////////////////////////////////////////////


/////////////////////////////////////////////////////////
// decode data

void decodeData (int counter, int &relativeA, int &relativeB,
							int datastoreA[], int datastoreB[])
{
	int tempA = 0, tempB = 0 ;
	char holdComma ;
	
	fin >> tempA ; // hold temp value of channel A
	
	if ((0<=tempA)&&(tempA<=503))
	{
	// computes and stores the absolute value (channel A)
	datastoreA [counter] = datastoreA[counter - 1] + tempA; 
	}
	else if ((505<=tempA)&&(tempA<=519))
	{
		counter-- ;
		cout << "ERROR - Offset is out of Range: 505 - 519 !!!" <<endl;
		fecgA.close() ;
		fecgB.close() ;
		//return ; can I call this as it is now???
	}
	else if (tempA == 504)
	{
		datastoreA [counter] = 4095 - DEAD_BAND_LIMIT ;
		cout << "POSITIVE SATURATION: @ Element " << counter << endl ;
	}
	else if (tempA == 520)
	{
		datastoreA [counter] = DEAD_BAND_LIMIT ;
		cout << "NEGATIVE SATURATION: @ Element " << counter << endl ;
	}
	else 
	{
		datastoreA [counter] = datastoreA[counter-1] - (1024 - tempA);
	}

	fin >> holdComma ; // holds the comma
	
	fin >> tempB ; // holds temp value of channel B

	if ((0<=tempB)&&(tempB<=503))
	{
		// computes and stores the absolute value (channel A)
		datastoreB [counter] = datastoreB[counter - 1] + tempB; 
	}
	else if ((505<=tempB)&&(tempB<=519))
	{
		counter--;
		cout << "ERROR - Offset is out of Range: 505 - 519 !!!" <<endl;
		fecgA.close() ;
		fecgB.close() ;
		//return ; can I call this as it is now???
	}
	else if (tempB == 504)
	{
		datastoreB [counter] = 4095 - DEAD_BAND_LIMIT ;
		cout << "POSITIVE SATURATION: @ Element " << counter << endl ;
	}
	else if (tempB == 520)
	{
		datastoreB [counter] = DEAD_BAND_LIMIT ;
		cout << "NEGATIVE SATURATION: @ Element " << counter << endl ;
	}
	else 
	{
		datastoreB [counter] = datastoreB[counter-1] - (1024 - tempB);
	}

	limitValues(relativeA, relativeB) ;

}
/////////////////////////////////////////////////////////



/////////////////////////////////////////////////////////
// fileOutput is used to write all the computed data from 
// the arrays to a file

void fileOutput (int datastoreA[], int datastoreB[])
{
	// file output for channel A!
	int outcount = 0 ;

	for (outcount = 0; outcount<=191; outcount++)
	{
		fecgA<<datastoreA[outcount] << endl ;
	}
	
	// open channel B output file
	for (outcount =0; outcount<=191; outcount++)
	{
		fecgB<<datastoreB[outcount]<< endl ;
	}
}
/////////////////////////////////////////////////////////



/////////////////////////////////////////////////////////
// VOID MAIN

void main()
{
	int relativeA = 0, relativeB = 0 ; 
	int counter = 1 ;
	
	int datastoreA[191] ;
	int datastoreB[191] ;
	
	char block[4] ;
	
	fin.open("smallECG.dat") ;
	
	if (!fin)
	{
		cout << "Error Opening File ... " << endl ;
	}
	else
	{
		fecgA.open("ecgA.dat") ;
		fecgB.open("ecgB.dat") ;
	
	int testcount = 1 ;
		
	while(fin)
	{
		cout << "Loop run number: " << testcount << endl ;
		getData (counter, block, relativeA, relativeB, 
								datastoreA, datastoreB) ;
		
		fileOutput (datastoreA, datastoreB) ;
		testcount++ ;
		// problems with the eof test.... what tested on, first  3 runs work now???
	}
	
	fecgA.close();
	fecgB.close();		
	
	}
	
	fin.close() ;
}
/////////////////////////////////////////////////////////

Some Sample Data....

Block
2048, 2048
1023, 0
1, 0
0, 1021
1022, 5
2, 1022
1, 1017
1016, 20
1019, 32
6, 1
8, 1012
1022, 8
1020, 5
7, 1012
1010, 11
956, 41
987, 1012
91, 944
294, 2
383, 96
65, 38
673, 943
701, 877
957, 927
13, 40
12, 105
23, 54
1022, 15
1021, 14
6, 1
4, 2
4, 7
3, 3
6, 1023
7, 1
8, 3
6, 0
6, 1
7, 1
10, 1
10, 3
11, 1
12, 1021
17, 1022
16, 1
12, 1022
16, 1023
11, 1
2, 1023
4, 2
1023, 3
1011, 0
1007, 1022
1012, 3
1006, 4
986, 1021
978, 1021
1004, 1
1019, 2
1010, 1021
1018, 1023
1020, 1021
1008, 0
1012, 5
2, 1
5, 1020
7, 4
10, 5
7, 1
8, 5
7, 2
1023, 0
0, 1022
13, 1023
3, 2
1011, 4
3, 0
10, 1023
1019, 3
0, 0
1, 1017
1013, 1021
1023, 4
8, 0
1, 1023
1023, 5
1019, 0
1018, 1019
1022, 1
9, 4
12, 2
1021, 0
1008, 1022
12, 5
27, 3
1011, 1021
998, 1021
5, 0
9, 1023
1022, 0
4, 3
12, 10
11, 11
3, 5
5, 9
30, 16
22, 1023
1014, 1009
1018, 1017
5, 1019
1015, 1013
1000, 1018
999, 1021
2, 1019
15, 0
1014, 1
1001, 1020
3, 1022
12, 2
1010, 5
1022, 1018
13, 1021
978, 37
955, 17
28, 943
203, 968
379, 80
241, 91
803, 1008
625, 912
865, 885
5, 988
5, 90
23, 84
14, 21
1017, 16
9, 11
8, 1
1021, 4
5, 5
17, 3
1, 4
1020, 2
10, 1023
12, 4
6, 4
8, 0
9, 1
13, 0
15, 1022
11, 2
12, 2
23, 0
16, 2
1, 2
2, 3
6, 3
1022, 2
1018, 1
1015, 0
1007, 0
1000, 0
997, 1
997, 1
1000, 0
1007, 1021
1011, 1021
1011, 1
1022, 1
5, 1023
1019, 0
1016, 1
5, 0
3, 5
1023, 2
1, 1023
1023, 0
0, 1022
9, 1023
6, 7
0, 1
1023, 1019
1023, 1
1, 1
5, 1022
1, 1021
1017, 0
1022, 0
4, 0
1022, 1022
1021, 0
0, 2

what is the program supposed to do?

oaoaweeewaaaaaaaaa!

Tell us what the program does and then isolate the problem to a specific area and post that here.
Im not going to read through all of that code.

The program is designed to read data from an encoded input file, fom a heart monitor..

then decode the data and place it into two output files for channel A and B data....

The input file has two colomns, they are A and B respectively, and the data is apparently encoded in dual slope 10-bit delta encoding...

Does anything make sense here/?


I need the program to read in the Data from input file, decode it and store it into arrays, then copy it to two output files, then do it again and again until the eof is encountered...

> char block[4] ;

This should be at least 6 characters, as the string you are reading is 5, then you need room for the string terminator.

char block[6] ;

Your counter variable gets corrupted because of this.

>/////////////////////////////////////////////////////////
>// VOID MAIN

>void main()
>{

And it's even commented so as to not forget to use it in future programs.

Im only programming in the way I have been taught..

The only reason you should have to reply on this thread is to HELP

....... Immature ... hhhhmmmnn

Is void main() used in C or earlier versions of C++? I know why not to use it, but even some MSDN examples use it.

what is MSDN?

A big windows programming help thing made by MicroSoft