C / C++ / MFC

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

// The array that holds the data
int array[1000]
;


void testSum()
{
     int sum=0;
 
  int j; 
  
  
   for(j=0 
; j< 1000 ; j++)
  
 {
      sum+=array[j];

    } 

       printf("Testing without threads, Sum is : %d \n",sum); 

  

}

// This function reads a file with 1000 integers,
 an integer is stored in 
// each line.The function stores the integers in the array

void readfile(char* file_name)

{

   char ch;
 
  
   FILE *fp;
    
    
   fp = fopen(file_name,"r"); // read mode
 
   if( fp == NULL )
   {
      perror("Error while opening the file.\n");
 
     exit(EXIT_FAILURE);
   }
   
 
    char line [5];
 /* line size */ 

    int i=0;
 
 
   printf("Reading file: ");   
 
    fputs(file_name,stdout);

    printf("\n");

    
    while ( fgets ( line, sizeof line, fp) != NULL ) /* read a line */
    {
       if (i < 1000)
       {
         array[i]=atoi(line); 
 
       }

        //debug code
        //fputs ( line, stdout ); /* write the line */
      i++;
  

  }

    
    // debug code 
    //printf("i is : %d \n",i);

 
   fclose(fp);

    printf("Reading file Complete, integers stored in array.\n\n"); 

   

}

 
int main(int argc, char* argv[])
{
   
   if (argc != 2) {
	fprintf(stderr,"usage: a.out <file name>\n");

	/*exit(1);
*/
	return -1;
 

   }

   readfile(argv[1]);


 
  //Debug code for testing only
   testSum();

 
 
 return 0;


}

neodeaths wrote:

but a linker error keep popping out.

Quote:

_snwprintf_s and wprintf are not identifier.

Unable to cast object of type System.Data.DataColumn to type System.IConvertible

lblvol->Text=System::Convert::ToString(sqrt(System::Convert::ToDouble(dbdataset->Columns["DataReturn"])));

#include "math.h"