#include <stdio.h>

int main()
{

    FILE *fp,*fp2;                                  /*two file pointers declared*/
    double val;                                     /*A double type variable declared, this is used to store the values read in*/
    int val_int;                                    /*An Int type variable is declared, this is used to store the integer version of the double*/
    char ch;                                        /*A char variable is declared, this is used to test for linefeeds or end of file EOF*/

    if((fp2=fopen("newfile.txt", "w"))==NULL){      /*if statement declaration.  The file pointer is set to point to the file in write mode.*/
                 printf("Error Creating file");     /*This file won't exist and so is created.                                              */
                 exit(1);                           /*The If statement checks it worked, if it didn't the pointer will return NULL          */
                 }                                  /*If the test failed, an error message is printed.                                      */

    if((fp=fopen("myfile.txt", "r"))==NULL){        /*if statement declaration.  The file pointer is set to point to the file in read mode.*/
                 printf("Error opening file");      /*The If statement checks it worked, if it didn't the pointer will return NULL          */
                 exit(1);                           /*If the test failed, an error message is printed.                                      */
                 }

      do{                                           /*Start of a do... while loop*/
          fscanf(fp,"%lf",&val);                    /*Scans in the first value, it stores it in the variable val, of type double*/
          ch= getc(fp);                             /*Scans for a single character, this will be our space between the values.  Or it will be a linefeed, or EOF*/
          val_int = val;                            /*Casts the double to type int, and stores it in the variable val_int*/
          printf("%lf ",val);                       /*prints the double value on screen*/
          fprintf(fp2,"%d ",val_int);               /*prints the int value into the created file*/
          if(ch == '\n' || ch ==EOF){               /*if the character scanned was a line feed or was the End Of File - EOF*/
                 printf("\n");                      /*then print a line feed on screen                                     */
                 fprintf(fp2,"\n");                 /*and print a linefeed in the created file                             */
                 }
       }while(ch!=EOF);                             /*continue this loop as long as the EOF was not detected in the character scan*/

    if((fclose(fp))!= 0)                            /*Close the opened file that fp points to, fclose will return a zero on completion.  If this value isn't returned pint an error message*/
                         printf("Error closing newfile.txt!");
    if((fclose(fp2))!= 0)                           /*Close the opened file that fp2 points to, fclose will return a zero on completion.  If this value isn't returned pint an error message*/
                         printf("Error closing myfile.txt!");


    return 0;

}