Reset the file reader pointer

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

int main(int argc, char *argv[])
{
  FILE *fp;

  /* see if filename is specified */
  if(argc != 2) {
    printf("File name missing.\n");
    exit(1);
  }

  if((fp = fopen(argv[1], "r"))==NULL) {
    printf("Cannot open file.\n");
    exit(1);
  }

  /* show it once */
  while(!feof(fp))
    putchar(getc(fp));

  rewind(fp);

  /* show it twice */
  while(!feof(fp))
    putchar(getc(fp));

  fclose(fp);

  return 0;
}

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Reset the file reader pointer : File Read « File « C / ANSI-C

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