Loading a File in C++

FILE  *fReadOpen( void )
/*
    purpose: open file for reading
    goal state: fReadOpen returns pointer to file
*/
{ /* begin fReadOp */
  /* data object declarations */
    char  FileName[80];  /* input file name */
    FILE  *pInFile;  /* file pointer */
    int  NoSuchFile;  /* logical check for FileName existence */

  /* algorithm */
	 printf( "\nPlease enter the file name to open for reading.\n ==> " );
	 do
		{ /* get FileName */
			 fflush( stdin );
			 scanf( "%[^\n]", FileName );
			 fflush( stdin );
		  /* check for existence */
			 NoSuchFile = ( (pInFile = fopen( FileName, "r" ) ) == NULL );
		  /* print message if file not found */
			 if  ( NoSuchFile )
				{ /* begin if NoSuchFile */
					 printf( "\n%s not found."
								"\nPlease input valid file name.\n ==> ", FileName );
				} /* end if NoSuchFile */
		}
	 while  ( NoSuchFile );
		
	 return( pInFile );

} /* end fReadOpen */

//********************************************************************
void get_data( double input_val[], int *parray_int)
/*
    purpose: continue on with file opening process
    goal state: return an array with via the point array_int
*/
{    // begin get_data
	// variable dictionary
	double aquire;       // being read by fscanf
	double value = 0;     // "value" for the fscanf statement
	FILE   *pInfile;       //  file from above function
	
	// algorithm 
		// open file for reading
			pInfile = fReadOpen();

		// loop for reading values 
			
			*parray_int = 0;
			do
			{ 
				aquire = fscanf(pInfile,"%f", &value);
				if (aquire == 1)
				{
					input_val[*parray_int] = value;
					*parray_int = *parray_int + 1;
				}
			} while (aquire == 1);

			// close file
			fclose( pInfile );

}   // end get_data

 
main()
{ // begin main
  // variable declarations
	 double input_val[N];       // input values
	 int array_int;            // number of input values
	 int ave;				  // average
	 int median;			 // median
	 int variance;			// Valance
	 int std_dev;		   // Standard Deviation

  // algorithm
		displayheader();
		get_data( input_val, &array_int);
		sort_data(input_val, array_int );
		calculations( input_val, array_int, &ave , &median, &variance, &std_dev);
		display(input_val, array_int, ave , median, variance, std_dev);
  // display end of program message
	printf("\n\n***** End of program\n***** ");

	return (0);

} // end main

//********************************************************************
void  displayheader( void )

#include <iostream>
#include <fstream>

using namespace std ;

int main( int argc , char **argv) {

int field1, field2, field3 ;

ifstream infile("file.in") ;

while( !infile.eof() ) {
   infile >> field1 >> field2 >> field3 ;
   cout << field1 << field2 << field3 << endl ;
}

return 0;

}

#include <stdio.h>
#include <stdlib.h>

int main( int argc , char **argv ) {

FILE *infile ;

infile = fopen( "testin" , "r" ) ;

int field1, field2, field3 ;

if( infile == NULL ) {
        printf("Error Reading File\n") ;
        exit(0) ;
}

while( fscanf( infile , "%i %i %i\n" , &field1, &field2, &field3 ) != EOF ) {
        printf( "Field1: %i\nField2: %i\nField3: %i\n\n" , field1, field2, field3) ;
}

fclose( infile ) ;

return 0 ;

}

  /* algorithm */
	 printf( "\nPlease enter the file name to open for reading.\n ==> " );
	 do
		{ /* get FileName */
			 fflush( stdin );
			 scanf( "%[^\n]", FileName );
			 printf( "crap2");
			 fflush( stdin );
		  /* check for existence */
			 NoSuchFile = ( (pInFile = fopen( FileName, "r" ) ) == NULL );
			 printf( "crap3");
		  /* print message if file not found */
			 if  ( NoSuchFile )
				{ /* begin if NoSuchFile */
					 printf( "\n%s not found.");
				    printf( "crap4");
					printf( "\nPlease input valid file name.\n ==> ", FileName );
				} /* end if NoSuchFile */
		}
	 while  ( NoSuchFile );
	 printf( "crap5");
		
	 return( pInFile );

} /* end fReadOpen */