Writing a file a character at a time : File Write « File « C / ANSI-C





Writing a file a character at a time

#include <stdio.h>
#include <string.h>

int main()
{
   char mystr[80]="asdfasdf";
   int i = 0;
   int lstr = 0;
   int mychar = 0;
   FILE *pfile = NULL;
   char *filename = "C:\\myfile.txt";

   pfile = fopen(filename, "w");
   if(pfile == NULL)
   {
     printf("Error opening %s for writing. Program terminated.", filename);
   }

   lstr = strlen( mystr );
   for(i = lstr-1 ; i >= 0 ; i--)
     fputc(mystr[i], pfile);  /* Write string to file backwards */

   fclose(pfile);

   /* Open the file for reading */
   pfile = fopen(filename, "r");
   if(pfile == NULL)
   {
     printf("Error opening %s for reading. Program terminated.", filename);
   }

   /* Read a character from the file and display it */
   while((mychar = fgetc(pfile)) != EOF)
     putchar(mychar);
   putchar('\n');

   fclose(pfile);
   remove(filename);
}


           
       










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